NCP302, NCP303 Voltage Detector Series with Programmable Delay The NCP302 and NCP303 series are second generation ultra−low current voltage detectors that contain a programmable time delay generator. These devices are specifically designed for use as reset controllers in portable microprocessor based systems where extended http://onsemi.com battery life is paramount. MARKING Each series features a highly accurate undervoltage detector with DIAGRAM hysteresis and an externally programmable time delay generator. This combination of features prevents erratic system reset operation. 5 The NCP302 series consists of complementary output devices that TSOP−5/ xxx AYW(cid:2) are available with either an active high or active low reset. The 5 SOT23−5 (cid:2) NCP303 series has an open drain N−Channel output with an active low 1 CASE 483 1 reset output. Features xxx = Specific Device Code • Quiescent Current of 0.5 (cid:2)A Typical A = Assembly Location • High Accuracy Undervoltage Threshold of 2.0% Y = Year • W = Work Week Externally Programmable Time Delay Generator (cid:2) = Pb−Free Package • Wide Operating Voltage Range of 0.8 V to 10 V (Note: Microdot may be in either location) • Complementary or Open Drain Output • Active Low or Active High Reset PIN CONNECTIONS • Specified Over the −40°C to +125°C Temperature Range Reset (Except for Voltage Options from 0.9 to 1.1 V) Output 1 5 CD • NCV Prefix for Automotive and Other Applications Requiring Input 2 Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable Ground 3 4 N.C. • These Devices are Pb−Free and are RoHS Compliant (Top View) Typical Applications • Microprocessor Reset Controller ORDERING INFORMATION • Low Battery Detection See detailed ordering and shipping information in the ordering • Power Fail Indicator information section on page 22 of this data sheet. • Battery Backup Detection NCP302xSNxxT1 NCP303LSNxxT1 Complementary Output Configuration Open Drain Output Configuration 2 Input 2 Input 1 Reset Output RD RD 1 * Reset Vref Output Vref 3 GND 5 CD 3 GND 5 CD * Inverter for active low devices. * Buffer for active high devices. This device contains 28 active transistors. Figure 1. Representative Block Diagrams © Semiconductor Components Industries, LLC, 2014 1 Publication Order Number: May, 2014 − Rev. 26 NCP302/D

NCP302, NCP303 MAXIMUM RATINGS Rating Symbol Value Unit Input Power Supply Voltage (Pin 2) Vin 12 V Delay Capacitor Pin Voltage (Pin 5) VCD −0.3 to Vin + 0.3 V Output Voltage (Pin 1) VOUT V Complementary, NCP302 −0.3 to Vin + 0.3 N−Channel Open Drain, NCP303 −0.3 to 12 Output Current (Pin 1) (Note 2) IOUT 70 mA Thermal Resistance Junction−to−Air R(cid:3)JA 250 °C/W Maximum Junction Temperature TJ +150 °C Operating Ambient Temperature Range All Voltage Options: 0.9 V to 1.1 V TA −40 to +85 °C All Voltage Options: 1.2 V to 4.9 V TA −40 to +125 °C Storage Temperature Range Tstg −55 to +150 °C Moisture Sensitivity Level MSL 1 Latchup Performance (Note 3) ILATCHUP mA Positive 200 Negative 200 Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL−STD−883, Method 3015. Machine Model Method 200 V. 2. The maximum package power dissipation limit must not be exceeded. T (cid:3) T J(max) A P (cid:2) D R(cid:3)JA 3. Maximum ratings per JEDEC standard JESD78. http://onsemi.com 2

NCP302, NCP303 ELECTRICAL CHARACTERISTICS (For all values TA = −40°C to +125°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit NCP302/3 − 0.9 (TA = 25(cid:2)C for voltage options from 0.9 to 1.1 V) Detector Threshold (Pin 2, Vin Decreasing) VDET− 0.882 0.900 0.918 V Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.027 0.045 0.063 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 0.8 V) − 0.20 0.6 (Vin = 2.9 V) − 0.45 1.2 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) Vin(min) − 0.55 0.70 V (TA= −40°C to 85°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.05 − (VOUT = 0.50V, Vin = 0.85V) 0.05 0.50 − Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) 1.0 6.0 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 1.5 V) 1.05 2.5 − Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 0.8 V) 0.014 0.08 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 0.99 V) 0.50 0.67 0.84 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 120 − (Vin = 0.85 V, VCD = 0.5V) 10 300 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) NCP302/3 − 1.8 Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C) VDET− 1.764 1.800 1.836 V (TA= −40°C to 125°C) 1.746 − 1.854 Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.054 0.090 0.126 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 1.7 V) − 0.23 0.7 (Vin = 3.8 V) − 0.48 1.3 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) (TA= 25°C) Vin(min) − 0.55 0.70 V (TA= −40°C to 125°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.05 − (VOUT = 0.50V, Vin = 1.5V) 1.0 2.0 − Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) 1.0 6.0 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 − Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 1.5 V) 0.525 0.6 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 1.98 V) 0.99 1.34 1.68 http://onsemi.com 3

NCP302, NCP303 ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit NCP302/3 − 1.8 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 120 − (Vin = 1.5 V, VCD = 0.5V) 200 1600 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) NCP302/3 − 2.0 Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C) VDET− 1.96 2.00 2.04 V (TA= −40°C to 125°C) 1.94 − 2.06 Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.06 0.10 0.14 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 1.9 V) − 0.23 0.8 (Vin = 4.0 V) − 0.48 1.3 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) (TA= 25°C) Vin(min) − 0.55 0.70 V (TA= −40°C to 125°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.14 − (VOUT = 0.50V, Vin = 1.5V) 1.0 3.5 − Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 − Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 1.5 V) 0.525 0.6 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 2.2 V) 1.10 1.49 1.87 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 250 − (Vin = 1.5 V, VCD = 0.5V) 200 3600 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) NCP302/3− 2.7 Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C) VDET− 2.646 2.700 2.754 V (TA= −40°C to 125°C) 2.619 − 2.781 Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.081 0.135 0.189 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 2.6 V) − 0.25 0.8 (Vin = 4.7 V) − 0.50 1.3 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) (TA= 25°C) Vin(min) − 0.55 0.70 V (TA= −40°C to 125°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.14 − (VOUT = 0.50V, Vin = 1.5V) 1.0 3.5 − Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 − http://onsemi.com 4

NCP302, NCP303 ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit NCP302/3− 2.7 Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 1.5 V) 0.525 0.6 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 2.97 V) 1.49 2.01 2.53 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 250 − (Vin = 1.5 V, VCD = 0.5V) 200 3600 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) NCP302/3 − 3.0 Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C) VDET− 2.94 3.00 3.06 V (TA= −40°C to 125°C) 2.91 − 3.09 Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.09 0.15 0.21 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 2.87 V) − 0.25 0.9 (Vin = 5.0 V) − 0.50 1.3 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) (TA= 25°C) Vin(min) − 0.55 0.70 V (TA= −40°C to 125°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.14 − (VOUT = 0.50V, Vin = 1.5V) 1.0 3.5 − Pch Source Current, NCP302 (VOUT = 2.4V, Vin = 4.5V) 1.0 9.7 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 − Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 1.5 V) 0.525 0.6 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 3.3 V) 1.65 2.23 2.81 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 250 − (Vin = 1.5 V, VCD = 0.5V) 200 3600 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) NCP302/3 − 4.5 Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C) VDET− 4.410 4.500 4.590 V (TA= −40°C to 125°C) 4.365 − 4.635 Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.135 0.225 0.315 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 4.34 V) − 0.33 1.0 (Vin = 6.5 V) − 0.52 1.4 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) (TA= 25°C) Vin(min) − 0.55 0.70 V (TA= −40°C to 125°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.05 − (VOUT = 0.50V, Vin = 1.5V) 1.0 2.0 − http://onsemi.com 5

NCP302, NCP303 ELECTRICAL CHARACTERISTICS (continued) (For all values TA = −40°C to +125°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit NCP302/3 − 4.5 Pch Source Current, NCP302 (VOUT = 5.9V, Vin = 8.0V) 1.5 10.5 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 − Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 1.5 V) 0.525 0.6 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 4.95 V) 2.25 3.04 3.83 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 120 − (Vin = 1.5 V, VCD = 0.5V) 200 1600 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) NCP302/3 − 4.7 Detector Threshold (Pin 2, Vin Decreasing) (TA= 25°C) VDET− 4.606 4.700 4.794 V (TA= −40°C to 125°C) 4.559 − 4.841 Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.141 0.235 0.329 V Supply Current (Pin 2) Iin (cid:2)A (Vin = 4.54 V) − 0.34 1.0 (Vin = 6.7 V) − 0.53 1.4 Maximum Operating Voltage (Pin 2) Vin(max) − − 10 V Minimum Operating Voltage (Pin 2) (TA= 25°C) Vin(min) − 0.55 0.70 V (TA= −40°C to 125°C) − 0.65 0.80 Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.05V, Vin = 0.70V) 0.01 0.05 − (VOUT = 0.50V, Vin = 1.5V) 1.0 2.0 − Pch Source Current, NCP302 (VOUT = 5.9V, Vin = 8.0V) 1.5 10.5 − Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) IOUT mA Nch Sink Current, NCP302, NCP303 (VOUT = 0.5 V, Vin = 5.0 V) 6.3 11 − Pch Source Current, NCP302 (VOUT = 0.4 V, Vin = 0.7 V) 0.011 0.04 − (VOUT = GND, Vin = 1.5 V) 0.525 0.6 − CD Delay Pin Threshold Voltage (Pin 5) VTCD V (Vin = 5.17 V) 2.59 3.49 4.40 Delay Capacitor Pin Sink Current (Pin 5) ICD (cid:2)A (Vin = 0.7 V, VCD = 0.1V) 2.0 120 − (Vin = 1.5 V, VCD = 0.5V) 200 1600 − Delay Pullup Resistance (Pin 5) RD 0.5 1.0 2.0 M(cid:4) Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. http://onsemi.com 6

NCP302, NCP303 NCP302L NCP303L VDET+ + 2.0 V VDET+ + 2.0 V Input Voltage, Pin 2 0.7 V 0.7 V GND GND VDET+ + 2.0 V 5.0 V Reset Output VDET+ + 2.0 V 2.5 V 2 Voltage, Pin 1 GND GND tD1 tD2 tD1 tD2 NCP302 and NCP303 series are measured with a 10 pF capacitive load. NCP303 has an additional 470 k pullup resistor connected from the reset output to +5.0 V. The reset output voltage waveforms are shown for the active low ‘L’ devices. Output time delay tD1 and tD2 are dependent upon the delay capacitance. Refer to Figures 30, 31, and 32. The upper detector threshold, VDET+ is the sum of the lower detector threshold, VDET− plus the input hysteresis, VHYS. Figure 2. Measurement Conditions for t and t D1 D2 http://onsemi.com 7

NCP302, NCP303 Table 1. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V Supply Current Nch Sink Current Pch Detector Threshold Source NCP302 Series Detector Threshold Hysteresis Vin Low Vin High Vin Low Vin High Current Iin ((cid:2)A) Iin ((cid:2)A) IOUT (mA) IOUT (mA) IOUT(mA) VDET− (V) (Note 4) VHYS (V) (Note 5) (Note 6) (Note 7) (Note 8) (Note 9) Part Number Min Typ Max Min Typ Max Typ Typ Typ Typ Typ NCP302LSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 0.05 0.5 2.0 NCP302LSN15T1 1.470 1.5 1.530 0.045 0.075 0.105 NCP302LSN18T1 1.764 1.8 1.836 0.054 0.090 0.126 0.23 0.48 NCP302LSN20T1 1.960 2.0 2.040 0.060 0.100 0.140 NCP302LSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50 NCP302LSN30T1, 2.940 3.0 3.060 0.090 0.150 0.210 NCV302LSN30T1, 2.940 3.0 3.060 0.090 0.150 0.210 NCP302LSN33T1 3.234 3.3 3.366 0.099 0.165 0.231 NCP302LSN38T1 3.724 3.8 3.876 0.114 0.190 0.266 NCP302LSN40T1 3.920 4.0 4.080 0.120 0.200 0.280 3.0 NCP302LSN43T1 4.214 4.3 4.386 0.129 0.215 0.301 NCP302LSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52 NCP302LSN47T1 4.606 4.7 4.794 0.141 0.235 0.329 0.34 0.53 4. Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to +125°C) are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C. 5. Condition 1: 0.9 — 2.9 V, Vin = VDET− − 0.10 V; 3.0 — 3.9 V, Vin = VDET− − 0.13 V; 4.0 — 4.9 V, Vin = VDET− − 0.16 V 6. Condition 2: 0.9 — 4.9 V, Vin = VDET− + 2.0 V 7. Condition 3: 0.9 — 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices 8. Condition 4: 0.9 — 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 — 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 — 4.9 V, Vin = 1.5 V, VOUT = 0.5 V, Condition 4: Active Low ‘L’ Suffix Devices 9. Condition 5: 0.9 — 3.9 V, Vin = 4.5 V, VOUT = 2.4 V; 4.0 — 4.9 V, Vin = 8.0 V, VOUT = 5.9 V, Active Low ‘L’ Suffix Devices Table 2. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V Supply Current Pch Source Current Detector Threshold Nch Sink NCP302 Series Detector Threshold Hysteresis Vin Low Vin High Current Vin Low Vin High Iin ((cid:2)A) Iin ((cid:2)A) IOUT (mA) IOUT (mA) IOUT (mA) VDET− (V) (Note 10) VHYS (V) (Note 11) (Note 12) (Note 13) (Note 14) (Note 15) Part Number Min Typ Max Min Typ Max Typ Typ Typ Typ Typ NCP302HSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 2.5 0.04 0.08 NCP302HSN18T1 1.764 1.8 1.836 0.054 0.090 0.126 0.23 0.48 NCP302HSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50 NCP302HSN30T1 2.940 3.0 3.060 0.090 0.150 0.210 NCP302HSN40T1 3.920 4.0 4.080 0.120 0.200 0.280 NCP302HSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52 10.Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to +125°C) are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C. 11.Condition 1: 0.9 — 2.9 V, Vin = VDET− − 0.10 V; 3.0 — 3.9 V, Vin = VDET− − 0.13 V; 4.0 — 4.9 V, Vin = VDET− − 0.16 V 12.Condition 2: 0.9 — 4.9 V, Vin = VDET− + 2.0 V 13.Condition 3: 0.9 — 1.4 V, Vin = 1.5 V, VOUT = 0.5 V; 1.5 — 4.9 V, Vin = 5.0 V, VOUT = 0.5 V, Active High ‘H’ Suffix Devices 14.Condition 4: 0.9 — 4.9 V, Vin = 0.7 V, VOUT = 0.4 V, Active High ‘H’ Suffix Devices 15.Condition 5: 0.9 — 1.0 V, Vin = 0.8 V, VOUT = GND; 1.1 — 1.5 V, Vin = 1.0 V, VOUT = GND; 1.6 — 4.9 V, Vin = 1.5 V, VOUT = GND, Active High ‘H’ Suffix Devices http://onsemi.com 8

NCP302, NCP303 Table 3. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 − 4.9 V Supply Current Nch Sink Current Detector Threshold NCP303 Series Detector Threshold Hysteresis Vin Low Vin High Vin Low Vin High Iin ((cid:2)A) Iin ((cid:2)A) IOUT (mA) IOUT (mA) VDET− (V) (Note 16) VHYS (V) (Note 17) (Note 18) (Note 19) (Note 20) Part Number Min Typ Max Min Typ Max Typ Typ Typ Typ NCP303LSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.20 0.45 0.05 0.5 NCP303LSN10T1 0.980 1.0 1.020 0.030 0.050 0.070 NCP303LSN11T1 1.078 1.1 1.122 0.033 0.055 0.077 1.0 NCP303LSN13T1 1.274 1.3 1.326 0.039 0.065 0.091 NCP303LSN14T1 1.372 1.4 1.428 0.042 0.070 0.098 NCP303LSN15T1 1.470 1.5 1.530 0.045 0.075 0.105 NCP303LSN16T1 1.568 1.6 1.632 0.048 0.080 0.112 2.0 NCP303LSN17T1 1.666 1.7 1.734 0.051 0.085 0.119 NCP303LSN18T1 1.764 1.8 1.836 0.054 0.090 0.126 0.23 0.48 NCP303LSN20T1 1.960 2.0 2.040 0.060 0.100 0.140 NCP303LSN22T1 2.156 2.2 2.244 0.066 0.110 0.154 NCP303LSN23T1 2.254 2.3 2.346 0.069 0.115 0.161 NCP303LSN24T1 2.352 2.4 2.448 0.072 0.120 0.168 NCP303LSN25T1 2.450 2.5 2.550 0.075 0.125 0.175 NCP303LSN26T1 2.548 2.6 2.652 0.078 0.130 0.182 NCP303LSN27T1 2.646 2.7 2.754 0.081 0.135 0.189 0.25 0.50 NCP303LSN28T1 2.744 2.8 2.856 0.084 0.140 0.196 NCP303LSN29T1 2.842 2.9 2.958 0.087 0.145 0.203 NCP303LSN30T1 2.940 3.0 3.060 0.090 0.150 0.210 NCP303LSN31T1 3.038 3.1 3.162 0.093 0.155 0.217 NCP303LSN32T1 3.136 3.2 3.264 0.096 0.160 0.224 NCP303LSN33T1 3.234 3.3 3.366 0.099 0.165 0.231 NCP303LSN34T1 3.332 3.4 3.468 0.102 0.170 0.238 NCP303LSN36T1 3.528 3.6 3.672 0.108 0.180 0.252 NCP303LSN38T1 3.724 3.8 3.876 0.114 0.190 0.266 NCP303LSN40T1 3.920 4.0 4.080 0.120 0.200 0.280 NCP303LSN42T1 4.116 4.2 4.284 0.126 0.210 0.294 NCP303LSN44T1 4.312 4.4 4.488 0.132 0.220 0.308 NCP303LSN45T1 4.410 4.5 4.590 0.135 0.225 0.315 0.33 0.52 NCP303LSN46T1 4.508 4.6 4.692 0.138 0.230 0.322 NCP303LSN47T1 4.606 4.7 4.794 0.141 0.235 0.329 0.34 0.53 NCP303LSN49T1 4.802 4.9 4.998 0.147 0.245 0.343 16.Values shown apply at +25°C only. For voltage options greater than 1.1 V, VDET− limits over operating temperature range (−40°C to +125°C) are VNOM ±3%. For voltage options < 1.2 V, VDET− is guaranteed only at +25°C. 17.Condition 1: 0.9 — 2.9 V, Vin = VDET− − 0.10 V; 3.0 — 3.9 V, Vin = VDET− − 0.13 V; 4.0 — 4.9 V, Vin = VDET− − 0.16 V 18.Condition 2: 0.9 — 4.9 V, Vin = VDET− + 2.0 V 19.Condition 3: 0.9 — 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices 20.Condition 4: 0.9 — 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 — 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 — 4.9 V, Vin = 1.5 V, VOUT = 0.5 V, Condition 4: Active Low ‘L’ Suffix Devices http://onsemi.com 9

NCP302, NCP303 1.0 10.5 0.9 TA = 25°C TA = 25°C 2.5 (cid:2)A) 0.8 A) NT ( 0.7 (cid:2)T ( 2.0 RE 0.6 EN R R U 0.5 R 1.5 C U UT 0.4 T C P U 1.0 N 0.3 P I, Iin 0.2 I, INin 0.5 0.1 0 0 0 2.0 4.0 6.0 8.0 10 12 0 2.0 4.0 6.0 8.0 10 12 Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) Figure 3. NCP302/3 Series 0.9 V Figure 4. NCP302/3 Series 2.7 V Input Current vs. Input Voltage Input Current vs. Input Voltage 17.2 V) 1.00 TA = 25°C E ( G 2.5 A A) LT 0.95 (cid:2)NT ( 2.0 D VO VDET+ E L R O UR 1.5 SH 0.90 C E T HR VDET− U 1.0 T I, INPin 0.5 CTOR 0.85 E T E 0 D 0.80 0 2.0 4.0 6.0 8.0 10 12 , T −50 −25 0 25 50 75 100 E D Vin, INPUT VOLTAGE (V) V TA, AMBIENT TEMPERATURE (°C) Figure 5. NCP302/3 Series 4.5 V Figure 6. NCP302/3 Series 0.9 V Input Current vs. Input Voltage Detector Threshold Voltage vs. Temperature V)2.90 V) 4.9 E ( E ( G G D VOLTA22..8805 VDET+ D VOLTA 44..87 VDET+ OL OL H H S2.75 S 4.6 E E R R H H OR T2.70 OR T 4.5 VDET− ECT2.65 VDET− ECT 4.4 ET ET V, DDET2.60−50 −25 TA, A0MBIEN2T5 TEMP5E0RATUR75E (°C)100 125 V, DDET 4.−350 −25 TA, A0MBIEN2T5 TEMPE50RATUR7E5 (°C)100 125 Figure 7. NCP302/3 Series 2.7 V Figure 8. NCP302/3 Series 4.5 V Detector Threshold Voltage vs. Temperature Detector Threshold Voltage vs. Temperature http://onsemi.com 10

NCP302, NCP303 1.0 3.5 3.0 V) V) E ( 0.8 E ( G G 2.5 A A T T OL 0.6 OL 2.0 V V T T PU 0.4 TA = −40°C (303L only) PU 1.5 T T U U , OOUT 0.2 TA = 25°C (303L only) , OOUT 1.0 TTAA == −14205°°CC ((330033LL oonnllyy)) V V 0.5 TA = 25°C (303L only) 0 0 0 0.2 0.4 0.6 0.8 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) Figure 9. NCP302L/3L Series 0.9 V Figure 10. NCP302L/3L Series 2.7 V Reset Output Voltage vs. Input Voltage Reset Output Voltage vs. Input Voltage 6.0 1.6 A) VOUT = 0.5 V m 1.4 E (V) 5.0 NT ( 1.2 TA = −40°C G E A 4.0 R T R 1.0 L U O C T V 3.0 NK 0.8 TPU TA = −40°C (303L only) T SI 0.6 U 2.0 U V, OOUT 1.0 TA = 25°C (303L only) , OUTPT 00..42 TA = 25°C TA = 85°C U O 0 I 0 0 1.0 2.0 3.0 4.0 5.0 6.0 0 0.2 0.4 0.6 0.8 1.0 Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) Figure 11. NCP302L/3L Series 4.5 V Figure 12. NCP302H/3L Series 0.9 V Reset Output Voltage vs. Input Voltage Reset Output Sink Current vs. Input Voltage 12 20 A) VOUT = 0.5 V A) VOUT = 0.5 V m m NT ( 10 TA = −40°C NT ( 15 TA = −40°C E E R 8.0 R R R U U C C SINK 6.0 TA = 25°C SINK 10 TA = 25°C T T U 4.0 U TP TA = 125°C TP 5.0 TA = 125°C U U O 2.0 O , T , T U U O O I 0 I 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1.0 2.0 3.0 4.0 5.0 Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) Figure 13. NCP302H/3L Series 2.7 V Figure 14. NCP302H/3L Series 4.5 V Reset Output Sink Current vs. Input Voltage Reset Output Sink Current vs. Input Voltage http://onsemi.com 11

NCP302, NCP303 20 20 NT (mA) TA = 25°C VOUT = Vin −2.1 V T (mA) TA = 25°C VOUT = Vin −2.1 V RE 15 EN 15 Vin −1.5 V R R U R C U RCE 10 Vin −1.5 V CE C 10 Vin −1.0 V U R SO Vin −1.0 V OU PUT 5.0 UT S 5.0 Vin −0.5 V UT Vin −0.5 V TP O U , OUT 0 , OUT 0 I 0 2.0 4.0 6.0 8.0 10 IO 0 2.0 4.0 6.0 8.0 10 Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) Figure 15. NCP302L Series 0.9 V Figure 16. NCP302L Series 2.7 V Reset Output Source Current vs. Input Voltage Reset Output Source Current vs. Input Voltage 20 1.5 mA) TA = 25°C VOUT = Vin −2.1 V mA) TA = 25°C NT ( T ( E 15 N R E UR RR 1.0 Vin = 0.85 V C U RCE 10 Vin −1.5 V NK C U SI T SO Vin −1.0 V PUT 0.5 Vin = 0.7 V U 5.0 T P U OUT Vin −0.5 V , OUT , UT 0 IO 0 O I 0 2.0 4.0 6.0 8.0 10 0 0.2 0.4 0.6 0.8 1.0 Vin, INPUT VOLTAGE (V) VOUT, OUTPUT VOLTAGE (V) Figure 17. NCP302L Series 4.5 V Figure 18. NCP302H/3L Series 0.9 V Reset Output Source Current vs. Input Voltage Reset Output Sink Current vs. Output Voltage 15 35 mA) TA = 25°C Vin = 2.5 V mA) 30 TA = 25°C T ( T ( Vin = 4.0 V N N E E 25 RR 10 RR Vin = 3.5 V U U NK C Vin = 2.0 V NK C 20 Vin = 3.0 V SI SI 15 T T U 5.0 U Vin = 2.5 V P P 10 OUT Vin = 1.5 V OUT Vin = 2.0 V , OUT , OUT 5.0 Vin = 1.5 V I 0 I 0 0 0.5 1.0 1.5 2.0 2.5 0 1.0 2.0 3.0 4.0 VOUT, OUTPUT VOLTAGE (V) VOUT, OUTPUT VOLTAGE (V) Figure 19. NCP302H/3L Series 2.7 V Figure 20. NCP302H/3L Series 4.5 V Reset Output Sink Current vs. Output Voltage Reset Output Sink Current vs. Output Voltage http://onsemi.com 12

NCP302, NCP303 A) 1.6 A) 14 m VCD = 0.5 V m VCD = 0.5 V NT ( 1.4 NT ( 12 TA = −40°C RRE 1.2 RRE 10 U U C 1.0 C K K 8.0 N N N SI 0.8 N SI6.0 TA = 25°C Y PI 0.6 TA = 25°C Y PI ELA 0.4 ELA4.0 TA = 125°C DD 0.2 TA = 85°C DD2.0 , CCD 0 TA = −40°C , CCD 0 I 0 0.2 0.4 0.6 0.8 1.0 I 0 0.5 1.0 1.5 2.0 2.5 3.0 Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V) Figure 21. NCP302/3 Series 0.9 V Figure 22. NCP302/3 Series 2.7 V C Delay Pin Sink Current vs. Input Voltage C Delay Pin Sink Current vs. Input Voltage D D A) 20 A) 1.5 NT (m 16 VCD = 0.5 V TA = −40°C NT (m TA = 25°C E E R R R R U U 1.0 SINK C 12 TA = 25°C SINK C Vin = 0.85 V N 8.0 N PI PI LAY TA = 125°C LAY 0.5 Vin = 0.7 V E 4.0 E D D D D C C , CD 0 , CD 0 I 0 1.0 2.0 3.0 4.0 5.0 I 0 0.2 0.4 0.6 0.8 1.0 Vin, INPUT VOLTAGE (V) VCD, DELAY PIN VOLTAGE (V) Figure 23. NCP302/3 Series 4.5 V Figure 24. NCP302/3 Series 0.9 V C Delay Pin Sink Current vs. Input Voltage C Delay Pin Sink Current vs. Voltage D D T (mA) 16 TA = 25°C Vin = 2.5 V NT (mA) 40 TA = 25°C N E Vin = 4.0 V E R 30 R 12 R R U Y PIN SINK CU 8.0 Vin = 2.0 V AY PIN SINK C 20 Vin = 2.V5 inV = 3.0V iVn = 3.5 V ELA 4.0 Vin = 1.5 V DEL 10 DD C D , CCD 0 I, CD 0 I 0 0.5 1.0 1.5 2.0 2.5 0 1.0 2.0 3.0 4.0 VCD, DELAY PIN VOLTAGE (V) VCD, DELAY PIN VOLTAGE (V) Figure 25. NCP302/3 Series 2.7 V Figure 26. NCP302/3 Series 4.5 V C Delay Pin Sink Current vs. Voltage C Delay Pin Sink Current vs. Voltage D D http://onsemi.com 13

NCP302, NCP303 V) 0.9 V) 2.2 E ( Vin = 0.99 V E ( Vin = 2.97 V G 0.8 G A A 2.1 T T L L O O V 0.7 V D D 2.0 L L O O H 0.6 H S S E E R R 1.9 TH 0.5 TH N N PI PI 1.8 D 0.4 D C C , D , D TC 0.3 TC 1.7 V −50 −25 0 25 50 75 100 V −50 −25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 27. NCP302/3 Series 0.9 V Figure 28. NCP302/3 Series 2.7 V C Delay Pin Threshold Voltage vs. Temperature C Delay Pin Threshold Voltage vs. Temperature D D V) 3.7 10000 E ( Vin = 4.95 V TA = 25°C G TA 3.6 AY1000 L L HOLD VO 3.5 UT TIME DE 100 tD1 ((cid:2)s) RES 3.4 OUTP 10 tD2 (ms) TH , 2 N D C PID 3.3 , ttD1 1.0 , D TC 3.2 0.1 V −50 −25 0 25 50 75 100 125 0.00001 0.0001 0.001 0.01 0.1 1.0 TA, AMBIENT TEMPERATURE (°C) CD, DELAY PIN CAPACITANCE ((cid:5)(cid:2)F) Figure 29. NCP302/3 Series 4.5 V Figure 30. NCP302/3 Series 0.9 V C Delay Pin Threshold Voltage vs. Temperature Output Time Delay vs. Capacitance D 10000 10000 TA = 25°C TA = 25°C AY1000 AY1000 EL tD1 ((cid:2)s) EL D D TIME 100 TIME 100 tD1 ((cid:2)s) T T U U P P T T OU 10 tD2 (ms) OU 10 tD2 (ms) , 2 , 2 D D , t1 , t1 D 1.0 D 1.0 t t 0.1 0.1 0.00001 0.0001 0.001 0.01 0.1 1.0 0.00001 0.0001 0.001 0.01 0.1 1.0 CD, DELAY PIN CAPACITANCE ((cid:5)(cid:2)F) CD, DELAY PIN CAPACITANCE ((cid:5)(cid:2)F) Figure 31. NCP302/3 Series 2.7 V Figure 32. NCP302/3 Series 4.5 V Output Time Delay vs. Capacitance Output Time Delay vs. Capacitance http://onsemi.com 14

NCP302, NCP303 250 160 CD = 0.1 (cid:2)F CD = 0.1 (cid:2)F 140 s)200 s) m m Y ( Y ( 120 A A L160 L E E 100 D D E E M120 M 80 TI TI T T 60 U U P 80 P T T U U 40 O O , 2 40 , 2 20 D D t t 0 0 −50 −25 0 25 50 75 100 −50 −25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 33. NCP302/3 Series 0.9 V Figure 34. NCP302/3 Series 2.7 V Reset Output Time Delay vs. Temperature Reset Output Time Delay vs. Temperature 250 1.6 ms)200 CD = 0.1 (cid:2)F (cid:4)M) Y ( E (1.2 A C L N DE150 TA E S M SI0.8 UTPUT TI100 DELAY RE0.4 , O2 50 R, D D t 0 0 −50 −25 0 25 50 75 100 −50 −25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 35. NCP302/3 Series 4.5 V Figure 36. NCP302/3 Series Reset Output Time Delay vs. Temperature Delay Resistance vs. Temperature http://onsemi.com 15

NCP302, NCP303 OPERATING DESCRIPTION V will again return to its nominal level and become greater in than the V . The voltage detector will turn off the The NCP302 and NCP303 series devices consist of a DET+ N−Channel MOSFET and allow pullup resistor R to charge precision voltage detector that drives a time delay generator. D external capacitor C , thus creating a programmable delay Figures 37 and 38 show a timing diagram and a typical D for releasing the reset signal. When the voltage at Pin 5 application. Initially consider that input voltage V is at a in exceeds the inverter/buffer threshold, typically 0.675 V , nominal level and it is greater than the voltage detector upper in the reset output will revert back to its original state. The reset threshold (V ). The voltage at Pin 5 and capacitor C DET+ D output time delay versus capacitance is shown in Figures 30 will be at the same level as V , and the reset output (Pin 1) in through 32. The voltage detector and inverter/buffer have will be in the high state for active low devices, or in the low built−in hysteresis to prevent erratic reset operation. state for active high devices. If there is a power interruption Although these device series are specifically designed for and V becomes significantly deficient, it will fall below the in use as reset controllers in portable microprocessor based lower detector threshold (V ) and the external time DET− systems, they offer a cost−effective solution in numerous delay capacitor C will be immediately discharged by an D applications where precise voltage monitoring and time internal N−Channel MOSFET that connects to Pin 5. This delay are required. Figures 38 through 46 show various sequence of events causes the Reset output to be in the low application examples. state for active low devices, or in the high state for active high devices. After completion of the power interruption, Vin Input Voltage, Pin 2 VDET+ VDET− Vin Capacitor, Pin 5 0.675 Vin Vin Reset Output (Active Low), Pin 1 VDET− 0 V Vin Reset Output (Active High), Pin 1 VDET− 0 V tD2 Figure 37. Timing Waveforms http://onsemi.com 16

NCP302, NCP303 APPLICATION CIRCUIT INFORMATION VDD VDD 2 Input * 5 NCP302 1 Microprocessor CD CD Series Reset Output Reset * 3 GN- Required for GND D NCP303 Figure 38. Microprocessor Reset Circuit 2.85 V 2.70 V Vin < 2.7 ON 2 Input 5 NCP302 1 To Additional Circuitry LSN27T1 CD Reset Output Vin > 2.835 ON 3 GN- D Figure 39. Battery Charge Indicator 5.0 V Vsupply 1.0 V 0 V 2 Input 470 k 5 1 NCP303 To Additional Circuitry LSN45T1 CD CD Reset Output 0.001 (cid:2)F 3 GN- Missing Pulse D Input 0 V Vin (cid:4)0.675*Vin CD Reset Output tD2 Figure 40. Missing Pulse Detector or Frequency Detector http://onsemi.com 17

NCP302, NCP303 VDD RH 2 Input VDD RL 5 1 NNNCCCPPP333000113 Microprocessor CD LLLSSSNNN222777TTT111 Reset Output Reset 3 GGGNNN--- GN- DDD D Figure 41. Microprocessor Reset Circuit with Additional Hysteresis Comparator hysteresis can be increased with the addition of Test Data resistor RH. The hysteresis equations have been simplified and do not account for the change of input current Iin as Vin crosses Vth Decreasing Vth Increasing VHYS RH RL the comparator threshold. The internal resistance, Rin is simply ÁÁÁ(VÁ) ÁÁÁÁÁ(VÁ) ÁÁÁÁ(V) ÁÁ(Á(cid:3)) ÁÁ(kÁ(cid:3)) calculated using Iin = 0.26 (cid:2)A at 2.6 V. ÁÁÁ2.Á70 ÁÁÁÁÁ2.8Á4 ÁÁÁ0Á.135ÁÁÁ0 ÁÁ−Á Vin Decreasing: 2.70 2.87 0.17 100 10 (cid:5) (cid:7) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2.70 2.88 0.19 100 6.8 V (cid:2) RH(cid:6)1 (cid:5)V (cid:7) ÁÁÁ2.Á70 ÁÁÁÁÁ2.9Á1 ÁÁÁ0Á.21ÁÁ1Á00 ÁÁ4Á.3 th Rin DET(cid:3) 2.70 2.90 0.20 220 10 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2.70 2.94 0.24 220 6.8 V Increasing: in (cid:5) (cid:7) ÁÁÁ2.Á70 ÁÁÁÁÁ2.9Á8 ÁÁÁ0Á.28ÁÁ2Á20 ÁÁ4Á.3 2.70 2.70 0.27 470 10 V (cid:2) RH (cid:6)1 (cid:5)V (cid:6)V (cid:7) ÁÁÁ2.Á70 ÁÁÁÁÁ3.0Á4 ÁÁÁ0Á.34ÁÁ4Á70 ÁÁ6Á.8 th Rin(cid:8)RL DET(cid:3) HYS ÁÁÁ2.Á70 ÁÁÁÁÁ3.1Á5 ÁÁÁ0Á.35ÁÁ4Á70 ÁÁ4Á.3 V = V Increasing − V Decreasing HYS in in 5.0 V 100 k Test Data C C ((cid:2)F) fOSC (kHz) IQ ((cid:2)A) 2 Input 82 k 0.01 2590 21.77 5 NNNCCCPPP333000112 1 0.1 490 21.97 CD HLLSSSNNN222777TTT111 Reset Output 1.0 52 22.07 3 GGGNNN--- DDD Figure 42. Simple Clock Oscillator http://onsemi.com 18

NCP302, NCP303 Vsupply This circuit monitors the current at the load. As current flows through the load, a voltage drop with Load respect to ground appears across Rsense where VDD Vsense = Iload * Rsense. The following conditions apply: If: Then: Rsense 2 Input ILoad (cid:9) VDET−/Rsense Reset Output = 0 V 50 k ILoad (cid:10) (VDET−+VHYS)/Rsense Reset Output = VDD 5 1 NNNCCCPPP333000113 Microcontroller LLLSSSNNN220779TTT111 CD Reset Output 3 GND GND Figure 43. Microcontroller Systems Load Sensing Vsupply 2 Input 5 1 NNNCCCPPP333000113 LLLSSSNNN224775TTT111 CD Reset Output 3 GND 2 Input 5 1 NNNCCCPPP333000113 LLLSSSNNN222777TTT111 CD Reset Output 3 GND Vin = 1.0 V to 10 V 2 Input 5 1 NNNCCCPPP333000113 LLLSSSNNN221778TTT111 CD Reset Output 3 GND A simple voltage monitor can be constructed by connecting several voltage detectors as shown above. Each LED will sequentially turn on when the respective voltage detector threshold (VDET− +VHYS) is exceeded. Note that detector thresholds (VDET−) that range from 0.9 V to 4.9 V in 100 mV steps can be manufactured. Figure 44. LED Bar Graph Voltage Monitor http://onsemi.com 19

NCP302, NCP303 VDD 2 Input EN 5 1 NCP302L To MCU or IN Series Logic Circuitry CD Reset Output Logic 1 CD 3 GND VDD NCP302 VDET Input Pin 0 V Logic 1 1 Enable Pin 0 VDD VTCD CD Pin 0 V Reset Output 0 V Note: Logic 1 is in tristate when EN = 0, VTCD (cid:2) 0.675 * VDD tD2 tD2 Figure 45. Undervoltage Detection with Independent Reset Signal Control This circuit monitors V for undervoltage. If the V logic gate is tristated the undervoltage detector will behave DD DD input falls below the detector threshold (V ), then the normally. If the tristate is de−asserted, the logic gate will pull DET− capacitor on the C pin will be immediately discharged the C pin low resulting in the Reset Output pin changing to D D resulting in the reset output changing to its active state an active state. This independent control is useful in power indicating that an undervoltage event has been detected. The supply sequencing applications when the Reset Output is addition of a logic gate (Logic 1) provides for reset output tied to the enable input of an LDO or DC−DC converter. control which is independent of V . If the output of the DD http://onsemi.com 20

NCP302, NCP303 R1 is Optional CD Pin Pullup Power Supply 1 VP (System Core) 2 Input R1 * RP 5 NCP302L 1 To MCU or CD Series Reset Output Logic Circuitry CD *Required for 3 GND NCP303 3.3 V Power Supply 2 (I/O Subsystem) 2 Input 1 NCP301 LSN30T1 Reset Output 3 GND 5.0 V Power Supply 3 (Peripheral Subsystem) 2 Input NCP301 1 LSN45T1 Reset Output 3 GND VIN Power Supply 1 0 V Power Supply 2 0 V Power Supply 3 0 V VIN CD Pin VTCD 0 V NCP302L RESET Output 0 V Note: VTCD (cid:2) 0.675 * VIN tD2 tD2 tD2 tD2 Figure 46. Multi−Rail Supply Undervoltage Monitor with Power Good This circuit monitors multiple power supply rails for approximately equal to 1.0 M(cid:4), and R1 > 5 k(cid:4). If R1 << R , D undervoltage conditions. If any of the three power supplies then R1 also can decrease the reset output delay time (t ) D2 are in an undervoltage condition, the NCP302 reset output variance over the operating temperature range. will be immediately set to an active low level. All three The Power Good signal time delay (t ) can be estimated D2 power supplies must be above their minimum voltage levels by: t ≈ R * C , with R in Ohms, and C in Farads. If D2 D D D D for the NCP302 reset output to generate a “Power Good” R1 is installed, then R ’ is substituted for R . R is added D D P level (Reset Output = Power Supply 1 or V ). only if using the NCP303 to replace the NCP302. This P Optionally, R1 may be added to provide a smaller allows the Reset Output to be pulled up to V , which can be P effective C pin pullup resistance, (R ’), where the Power Supply 1 or an independent power supply rail. D D R ’ = R1 || R , with R (internal C pin pullup resistance) D D D D http://onsemi.com 21

NCP302, NCP303 ORDERING INFORMATION Threshold Output Device Voltage Type Reset Marking Package Shipping† NCP302LSN09T1G 0.9 SBO TSOP−5 (Pb−Free) NCP302LSN15T1G 1.5 SBI TSOP−5 (Pb−Free) NCP302LSN18T1G 1.8 SBF TSOP−5 (Pb−Free) NCP302LSN20T1G 2.0 SBD TSOP−5 (Pb−Free) NCV302LSN20T1G* AHH NCP302LSN27T1G 2.7 SAW TSOP−5 (Pb−Free) NCP302LSN28T1G 2.8 ALA TSOP−5 (Pb−Free) NCP302LSN30T1G 3.0 Active SAT TSOP−5 Low (Pb−Free) NCV302LSN30T1G* ACJ NCP302LSN33T1G 3.3 SAQ TSOP−5 (Pb−Free) NCP302LSN38T1G 3.8 SAK TSOP−5 (Pb−Free) NCP302LSN40T1G 4.0 CMOS SAI TSOP−5 3000 / Tape & Reel (Pb−Free) (7 inch Reel) NCP302LSN43T1G 4.3 SAF TSOP−5 (Pb−Free) NCP302LSN45T1G 4.5 SAL TSOP−5 (Pb−Free) NCP302LSN47T1G 4.7 SAC TSOP−5 (Pb−Free) NCP302HSN09T1G 0.9 SDO TSOP−5 (Pb−Free) NCP302HSN18T1G 1.8 SFH TSOP−5 (Pb−Free) NCP302HSN27T1G 2.7 SDK TSOP−5 Active (Pb−Free) NCP302HSN30T1G 3.0 High SDI TSOP−5 (Pb−Free) NCP302HSN40T1G 4.0 SJH TSOP−5 (Pb−Free) NCP302HSN45T1G 4.5 SDG TSOP−5 (Pb−Free) NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable. NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design. http://onsemi.com 22

NCP302, NCP303 ORDERING INFORMATION Threshold Output Device Voltage Type Reset Marking Package Shipping† NCP303LSN09T1G 0.9 SDE TSOP−5 (Pb−Free) NCV303LSN09T1G* AMU NCP303LSN10T1G 1.0 SDD TSOP−5 (Pb−Free) NCV303LSN10T1G* SSM NCP303LSN11T1G 1.1 SDC TSOP−5 (Pb−Free) NCV303LSN11T1G* ADC NCV303LSN12T1G* 1.2 SDB TSOP−5 (Pb−Free) NCP303LSN13T1G 1.3 SDA TSOP−5 (Pb−Free) NCV303LSN13T1G* SRS Open Active 3000 / Tape & Reel NCP303LSN14T1G 1.4 SCZ TSOP−5 Drain Low (7 inch Reel) (Pb−Free) NCV303LSN14T1G* SRT NCP303LSN15T1G 1.5 SCY TSOP−5 (Pb−Free) NCV303LSN15T1G* SRU NCP303LSN16T1G 1.6 SCX TSOP−5 (Pb−Free) NCV303LSN16T1G* SRV NCP303LSN17T1G 1.7 SCW TSOP−5 NCP303LSN18T1G 1.8 SCV TSOP−5 (Pb−Free) NCP303LSN20T1G 2.0 SCT TSOP−5 (Pb−Free) NCV303LSN20T1G* SRW NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable. NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design. http://onsemi.com 23

NCP302, NCP303 ORDERING INFORMATION Threshold Output Device Voltage Type Reset Marking Package Shipping† NCP303LSN22T1G 2.2 SCR TSOP−5 (Pb−Free) NCV303LSN22T1G* ADD NCP303LSN23T1G 2.3 SCQ TSOP−5 (Pb−Free) NCV303LSN23T1G* SRX NCP303LSN24T1G 2.4 SCP TSOP−5 (Pb−Free) NCV303LSN24T1G* SRY NCP303LSN25T1G 2.5 SCO TSOP−5 (Pb−Free) NCV303LSN25T1G* AHA NCP303LSN26T1G 2.6 SCN TSOP−5 (Pb−Free) NCP303LSN27T1G 2.7 SCM TSOP−5 (Pb−Free) NCV303LSN27T1G* CAP NCP303LSN28T1G 2.8 Open Active SCL TSOP−5 3000 / Tape & Reel Drain Low (Pb−Free) (7 inch Reel) NCV303LSN28T1G* TAA NCP303LSN29T1G 2.9 SCK TSOP−5 (Pb−Free) NCV303LSN29T1G* SSK TSOP−5 (Pb−Free) NCP303LSN30T1G 3.0 SCJ TSOP−5 (Pb−Free) NCV303LSN30T1G* SSA TSOP−5 (Pb−Free) NCP303LSN31T1G 3.1 SCI TSOP−5 (Pb−Free) NCV303LSN31T1G* CAR TSOP−5 (Pb−Free) NCP303LSN32T1G 3.2 SCH TSOP−5 (Pb−Free) NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable. NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design. http://onsemi.com 24

NCP302, NCP303 ORDERING INFORMATION Threshold Output Device Voltage Type Reset Marking Package Shipping† NCP303LSN33T1G 3.3 SCG TSOP−5 (Pb−Free) NCP303LSN34T1G 3.4 SCF TSOP−5 (Pb−Free) NCV303LSN34T1G* CAT NCP303LSN36T1G 3.6 SCD TSOP−5 (Pb−Free) NCV303LSN36T1G* SSC NCP303LSN38T1G 3.8 SCA TSOP−5 (Pb−Free) NCP303LSN40T1G 4.0 SBY TSOP−5 (Pb−Free) NCV303LSN40T1G* SSD NCP303LSN42T1G 4.2 SBW TSOP−5 (Pb−Free) NCV303LSN42T1G* SSE NCV303LSN43T1G* 4.3 SBV TSOP−5 (Pb−Free) NCP303LSN44T1G 4.4 SBU TSOP−5 (Pb−Free) NCV303LSN44T1* SSF TSOP−5 NCV303LSN44T1G* Open Active TSOP−5 3000 / Tape & Reel Drain Low (Pb−Free) (7 inch Reel) NCP303LSN45T1G 4.5 SBT TSOP−5 (Pb−Free) NCV303LSN45T1G* SSG NCP303LSN46T1G 4.6 SBS TSOP−5 (Pb−Free) NCV303LSN46T1* SSH TSOP−5 NCV303LSN46T1G* TSOP−5 (Pb−Free) NCP303LSN47T1G 4.7 SBR TSOP−5 (Pb−Free) NCV303LSN47T1* SSJ TSOP−5 NCV303LSN47T1G* TSOP−5 (Pb−Free) NCP303LSN49T1G 4.9 SBP TSOP−5 (Pb−Free) NCV303LSN49T1* SSI TSOP−5 NCV303LSN49T1G* TSOP−5 (Pb−Free) NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable. NCVxxx: Tlow = −40°C, Thigh = +125°C. Guaranteed by design. http://onsemi.com 25

NCP302, NCP303 PACKAGE DIMENSIONS TSOP−5 (SOT−23−5/SC59−5) CASE 483−02 ISSUE K NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME NOTE 5 D5X Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 0.20 C A B 3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH 2X 0.10 T THICKNESS. MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL. M 4. DIMENSIONS A AND B DO NOT INCLUDE MOLD 2X 0.20 T B 5 4 S FFLLAASSHH,, PPRROOTTRRUUSSIIOONNSS,, OORR GGAATTEE BBUURRRRSS. SMHOALLDL NOT 1 2 3 EXCEED 0.15 PER SIDE. DIMENSION A. K 5. OPTIONAL CONSTRUCTION: AN ADDITIONAL B G DETAIL Z TTRRIIMMMMEEDD LLEEAADD INSO ATL TLOO WEXETDE INND T HMIOS RLEO CTHATAINO N0..2 A A FROM BODY. MILLIMETERS TOP VIEW DIM MIN MAX A 3.00 BSC B 1.50 BSC DETAIL Z C 0.90 1.10 J D 0.25 0.50 C G 0.95 BSC H 0.01 0.10 0.05 J 0.10 0.26 H C SPELAATNIENG END VIEW MK 0.02 0(cid:3) 010.6 (cid:3) 0 SIDE VIEW S 2.50 3.00 SOLDERING FOOTPRINT* 1.9 0.074 0.95 0.037 2.4 0.094 1.0 0.039 0.7 (cid:5) (cid:7) 0.028 SCALE 10:1 mm inches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: N. American Technical Support: 800−282−9855 Toll Free ON Semiconductor Website: www.onsemi.com Literature Distribution Center for ON Semiconductor USA/Canada P.O. Box 5163, Denver, Colorado 80217 USA Europe, Middle East and Africa Technical Support: Order Literature: http://www.onsemi.com/orderlit Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Phone: 421 33 790 2910 Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Japan Customer Focus Center For additional information, please contact your local Email: orderlit@onsemi.com Phone: 81−3−5817−1050 Sales Representative http://onsemi.com NCP302/D 26

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: O N Semiconductor: NCP302HSN09T1G NCP302HSN18T1G NCP302HSN27T1G NCP302HSN30T1G NCP302HSN40T1G NCP302HSN45T1G NCP302LSN09T1G NCP302LSN15T1G NCP302LSN18T1G NCP302LSN20T1G NCP302LSN27T1G NCP302LSN30T1G NCP302LSN33T1G NCP302LSN38T1G NCP302LSN40T1G NCP302LSN43T1G NCP302LSN45T1G NCP302LSN47T1G NCP303LSN09T1G NCP303LSN10T1G NCP303LSN11T1G NCP303LSN13T1G NCP303LSN14T1G NCP303LSN15T1G NCP303LSN16T1G NCP303LSN18T1G NCP303LSN20T1G NCP303LSN22T1G NCP303LSN23T1G NCP303LSN24T1G NCP303LSN25T1G NCP303LSN26T1G NCP303LSN27T1G NCP303LSN28T1G NCP303LSN29T1G NCP303LSN30T1G NCP303LSN31T1G NCP303LSN32T1G NCP303LSN33T1G NCP303LSN34T1G NCP303LSN36T1G NCP303LSN38T1G NCP303LSN40T1G NCP303LSN42T1G NCP303LSN44T1G NCP303LSN45T1G NCP303LSN46T1G NCP303LSN47T1G NCV303LSN10T1G NCV303LSN15T1G NCV303LSN23T1G NCV303LSN29T1G NCV303LSN30T1G NCV303LSN44T1G NCV303LSN45T1G NCV303LSN47T1G NCV303LSN49T1G NCP303LSN49T1G NCV302LSN30T1G NCV303LSN13T1G NCV303LSN14T1G NCV303LSN16T1G NCV303LSN36T1G NCV303LSN42T1G NCV303LSN43T1G NCV303LSN46T1G NCV303LSN22T1G NCV303LSN11T1G NCV303LSN17T1G NCV303LSN31T1G NCV303LSN34T1G NCP303LSN17T1G NCV303LSN40T1G NCP303LSN09T2G