CAT803, CAT809, CAT810 3-Pin Microprocessor Power Supply Supervisors Description The CAT803, CAT809, and CAT810 are supervisory circuits that monitor power supplies in digital systems. The CAT803, CAT809, and http://onsemi.com CAT810 are direct replacements for the MAX803, MAX809 and MAX810 in applications operating over the industrial temperature range. These devices generate a reset signal, which is asserted while the power supply voltage is below a preset threshold level and for at least 140ms after the power supply level has risen above that level. The underlying floating gate technology, Analog EEPROM used by SOT−23 ONSemiconductor, makes it possible to offer any custom reset TB SUFFIX threshold value. Seven industry standard threshold levels are offered CASE 527AG to support +5.0V, +3.3V, +3.0V and +2.5V systems. The CAT803 has an open−drain RESET output (active LOW). The CAT803 requires a pull−up resistor on the reset output. The CAT809 features a push−pull RESET output (active LOW) and the CAT810 features a push−pull RESET output (active HIGH). SC−70 SD SUFFIX Fast transients on the power supply are ignored and the output is CASE 419AB guaranteed to be in the correct state at V levels as low as 1.0 V. CC The CAT803, CAT809, and CAT810 are available in both the compact 3−pin SOT−23 and SC−70 packages. PIN CONFIGURATION Features 1 3−Lead SOT23 • GND 3−Lead SC70 Precision Monitoring of 3 +5.0 V (−5%, −10%, −20%), VCC +3.3 V (−5%, −10%), 2 CAT803 +3.0 V (−10%) and RESET CAT809 +2.5 V (−5%) Power Supplies (RESET) (CAT810) • (Top View) Offered in Three Output Configurations: − CAT803: Open−Drain Active LOW Reset − CAT809: Push−Pull Active LOW Reset MARKING DIAGRAMS − CAT810: Push−Pull Active HIGH Reset • Direct Replacements for the MAX803, MAX809 and MAX810 in XXXM(cid:2) XXXM(cid:2) Applications Operating over the Industrial Temperature Range (cid:2) (cid:2) • Reset Valid down to V = 1.0 V CC • 6 (cid:2)A Power Supply Current • SOT−23 SC−70 Power Supply Transient Immunity • Industrial Temperature Range: −40°C to +85°C XXX = Specific Device Code • M = Month Code Available in SOT−23 and SC−70 Packages (cid:2) = Pb−Free Package • These Devices are Pb−Free and are RoHS Compliant (*Note: Microdot may be in either location) Applications • Computers, Servers, Laptops, Cable Modems ORDERING INFORMATION • Wireless Communications See detailed ordering and shipping information in the package • dimensions section on page 8 of this data sheet. Embedded Control Systems • White Goods, Power Meters • Intelligent Instruments • PDAs and Handheld Equipment © Semiconductor Components Industries, LLC, 2012 1 Publication Order Number: October, 2012 − Rev. 33 CAT803/D

CAT803, CAT809, CAT810 Table 1. THRESHOLD SUFFIX SELECTOR Nominal Threshold Voltage Threshold Suffix Designation 4.63 V L 4.55 V H 4.38 V M 4.00 V J 3.08 V T 2.93 V S 2.63 V R 2.32 V Z 1.60 V V Table 2. PIN DESCRIPTIONS Pin Number CAT803 CAT809 CAT810 Name Description 1 1 1 GND Ground 2 2 − RESET Active LOW reset. RESET is asserted if VCC falls below the reset threshold and remains low for at least 140 ms after VCC rises above the reset threshold. − − 2 RESET Active HIGH reset. RESET is asserted if VCC falls below the reset threshold and remains high for at least 140 ms after VCC rises above the reset threshold. 3 3 3 VCC Power supply voltage that is monitored. Table 3. ABSOLUTE MAXIMUM RATINGS Parameter Rating Units Any pin with respect to ground −0.3 to +6.0 V Input Current, VCC 20 mA Output Current, RESET, RESET 20 mA Rate of Rise, VCC 100 V/(cid:2)s Continuous Power Dissipation mW Derate 2.2 mW/°C above 70°C (SC70) 175 Derate 4 mW/°C above 70°C (SOT23) 320 Operating Temperature Range −40 to +85 °C Storage Temperature Range −65 to +105 °C Lead Soldering Temperature (10 sec) 300 °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. http://onsemi.com 2

CAT803, CAT809, CAT810 VCC VCC VCC TOLBEIRAASNCE + DIGITAL RESET DELAY – VOLTAGE REFERENCE CAT803 GND VCC VCC VCC TOLERANCE + BIAS DIGITAL RESET – DELAY VOLTAGE REFERENCE CAT809 GND VCC VCC VCC TOLBEIRAASNCE + DIGITAL RESET – DELAY VOLTAGE REFERENCE CAT810 GND Figure 1. Block Diagrams http://onsemi.com 3

CAT803, CAT809, CAT810 Table 4. ELECTRICAL CHARACTERISTICS (VCC = Full range, TA = −40°C to +85°C, unless otherwise specified. Typical values at TA = +25°C and VCC = 5 V for the L/H/M/J versions, VCC = 3.3 V for the T/S versions, VCC = 3 V for the R version and VCC = 2.5 V for the Z/V versions.) Typ Symbol Parameter Conditions Min (Note 1) Max Units VCC Range TA = 0°C to +70°C 1.0 5.5 V TA = −40°C to +85°C 1.2 5.5 ICC Supply Current TA = −40°C VCC < 5.5 V, J/L/M/H 8 20 (cid:2)A to +85°C VCC < 3.6 V, R/S/T/Z/V 6 15 VTH Reset Threshold Voltage L Threshold TA = +25°C 4.56 4.63 4.70 V TA = −40°C to +85°C 4.50 4.75 H Threshold TA = +25°C 4.48 4.55 4.62 TA = −40°C to +85°C 4.43 4.67 M Threshold TA = +25°C 4.31 4.38 4.45 TA = −40°C to +85°C 4.25 4.50 J Threshold TA = +25°C 3.93 4.00 4.06 TA = −40°C to +85°C 3.89 4.10 T Threshold TA = +25°C 3.04 3.08 3.11 TA = −40°C to +85°C 3.00 3.15 S Threshold TA = +25°C 2.89 2.93 2.96 TA = −40°C to +85°C 2.85 3.00 R Threshold TA = +25°C 2.59 2.63 2.66 TA = −40°C to +85°C 2.55 2.70 Z Threshold TA = +25°C 2.28 2.32 2.35 TA = −40°C to +85°C 2.25 2.38 V Threshold TA = +25°C 1.58 1.60 1.62 TA = −40°C to +85°C 1.56 1.64 Reset Threshold Tempco 30 ppm/°C TD VCC to Reset Delay (Note 2) VCC = VTH to (VTH − 100 mV) 20 (cid:2)s TR Reset Active Timeout Period TA = −40°C to +85°C 140 240 460 ms VOL RESET Output Voltage Low VCC = VTH min, ISINK = 1.2 mA 0.3 V (Open−drain active LOW, CAT803R/S/T/Z, CAT809R/S/T/Z/V CAT803 and push−pull, active LOW, CAT809) VCC = VTH min, ISINK = 3.2 mA 0.4 CAT803J/L/M, CAT809J/L/M/H VCC > 1.0 V, ISINK = 50 (cid:2)A 0.3 VOH RESET Output Voltage High VCC = VTH max, ISOURCE = 500 (cid:2)A 0.8 VCC V (Push−pull, active LOW, CAT809R/S/T/Z/V CAT809) VCC = VTH max, ISOURCE = 800 (cid:2)A VCC − 1.5 CAT809J/L/M/H VOL RESET Output Voltage Low VCC > VTH max, ISINK = 1.2 mA 0.3 V (Push−pull, active HIGH, CAT810R/S/T/Z CAT810) VCC > VTH max, ISINK = 3.2 mA 0.4 CAT810J/L/M VOH RESET Output Voltage High 1.8 V < VCC VTH min, 0.8 VCC V (Push−pull, active HIGH, ISOURCE = 150 (cid:2)A CAT810) 1. Production testing done at TA = +25°C; limits over temperature guaranteed by design only. 2. RESET output for the CAT809; RESET output for the CAT810. http://onsemi.com 4

CAT803, CAT809, CAT810 TYPICAL OPERATING CHARACTERISTICS (VCC = Full range, TA = −40°C to +85°C, unless otherwise specified. Typical values at TA = +25°C and VCC = 5 V for the L/M/J versions, VCC = 3.3 V for the T/S versions, VCC = 3 V for the R version and VCC = 2.5 V for the Z version.) 260 12 S) m OUT ( 240 VCC = 5 V (cid:2)A) 10 VCC = 5.5 V E T ( 8 M N TI 220 E ET RR 6 VCC = 3.6 V ES VCC = 2.5 V CU R 200 Y UP PPL 4 R− U WE 180 S 2 O P 160 0 −50 0 50 100 150 −50 0 50 100 150 TEMPERATURE (°C) TEMPERATURE (°C) Figure 2. Power−up Reset Timeout vs. Figure 3. Supply Current vs. Temperature Temperature (No Load, CAT8xxR/S/T/Z) 14 1.0002 S) (cid:2) Y ( 12 D1.0000 A L L O E 10 H0.9998 D S SET 8 HRE0.9996 E T R D N 6 E0.9994 OW ALIZ D 4 M0.9992 R− R E O W 2 N0.9990 O P 0 0.9988 −50 0 50 100 150 0 20 40 60 80 100 120 TEMPERATURE (°C) TEMPERATURE (°C) Figure 4. Power−down Reset Delay vs. Figure 5. Normalized Reset Threshold vs. Temperature (CAT8xxR/S/T/Z) Temperature http://onsemi.com 5

CAT803, CAT809, CAT810 Detailed Descriptions Reset Timing The reset signal is asserted LOW for the CAT803/CAT809 and HIGH for the CAT810 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 140 ms after the power supply voltage has risen above the threshold. 5 V VTH VCC 0 V TD TR Reset Timeout Period (140 ms minimum) 5 V CAT803, CAT809 RESET 0 V 5 V CAT810 RESET 0 V Figure 6. Reset Timing Diagram V Transient Response 30 CC The CAT803/CAT809/CAT810 protect (cid:2)Ps against TAMB = 25°C brownout failure. Short duration transients of 4 (cid:2)sec or less s) 25 (cid:2) and 100 mV amplitude typically do not cause a false RESET. N ( Figure 7 shows the maximum pulse duration of negative− O 20 TI going VCC transients that do not cause a reset condition. RA U As the amplitude of the transient goes further below the D 15 threshold (increasing V − V ), the maximum pulse T CAT809Z TH CC N duration decreases. In this test, the VCC starts from an initial SIE 10 voltage of 0.5 V above the threshold and drops below it by N CAT809M A the amplitude of the overdrive voltage (VTH − VCC). TR 5 0 1 10 100 1000 RESET OVERDRIVE VTH − VCC (mV) Figure 7. Maximum Transient Duration without Causing a Reset Pulse vs. Reset Comparator Overdrive http://onsemi.com 6

CAT803, CAT809, CAT810 Valid RESET with V Under 1.0 V CC To ensure that the CAT809 RESET pin is in a known state when V is under 1.0 V, a >10 k(cid:3) pull−down resistor between CC RESET pin and GND is recommended. For the CAT810, a pull−up resistor from RESET pin to V is needed. CC Power Power Supply Supply VCC VCC 10 k(cid:3) CAT810 CAT809 RESET RESET GND 10 k(cid:3) GND Figure 8. RESET Valid with V Under 1.0 V Figure 9. RESET Valid with V Under 1.1 V CC CC Bi−directional Reset Pin Interfacing The CAT809/810 can interface with (cid:2)P/(cid:2)C bi−directional reset pins by connecting a 4.7 k(cid:3) resistor in series with the CAT809/810 reset output and the (cid:2)P/(cid:2)C bi−directional reset pin. BUF Buffered RESET Power Supply VCC VCC CAT809 (cid:2)P 4.7 k(cid:3) (For example: RESET RESET 68HC11) INPUT GND GND Bi−directional I/O Pin Figure 10. Bi−directional Reset Pin Interfacing CAT803 Open−Drain RESET Application Power The CAT803 features an open−drain RESET output and Supply therefore needs a pull−up resistor on the output for proper operation, as shown on Figure 11. An advantage of the VCC open−drain output includes the ability to “wire AND” 5 k(cid:3) several outputs together to form an inexpensive logic circuit. VCC CAT803 It is also possible to have the pull−up resistor connected to (cid:2)P a different supply which can be higher than the CAT803 V CC RESET pin. The value of the pull−up resistor is not critical in most RESET INPUT applications, typical values being between 5k(cid:3) and 10k(cid:3). GND GND Figure 11. Typical CAT803 Open−Drain Circuit Configuration http://onsemi.com 7

CAT803, CAT809, CAT810 Table 5. ORDERING PART NUMBER Top Mark Quantity Order Number (Note 4) per Reel NiPdAu (Note 3) Matte−Tin Voltage NiPdAu Matte−Tin Output Reset Package (Note 5) CAT803LSDI−GT3 CAT803LSDI−T3 4.63 V VKA VKL CAT803MSDI−GT3 CAT803MSDI−T3 4.38 V VKA VKL CAT803JSDI−GT3 CAT803JSDI−T3 4.00 V VKA VKL Open CAT803TSDI−GT3 CAT803TSDI−T3 3.08 V VKA VKL LOW SC70−3 Drain CAT803SSDI−GT3 CAT803SSDI−T3 2.93 V VKA VKL CAT803RSDI−GT3 CAT803RSDI−T3 2.63 V VKA VKL CAT803ZSDI−GT3 CAT803ZSDI−T3 2.32 V VKA VKL 3,000 CAT803LTBI−GT3 CAT803LTBI−T3 4.63 V VKA VKL CAT803MTBI−GT3 CAT803MTBI−T3 4.38 V VKA VKL CAT803JTBI−GT3 CAT803JTBI−T3 4.00 V VKA VKL Open CAT803TTBI−GT3 CAT803TTBI−T3 3.08 V VKA VKL LOW SOT−23−3 Drain CAT803STBI−GT3 CAT803STBI−T3 2.93 V VKA VKL CAT803RTBI−GT3 CAT803RTBI−T3 2.63 V VKA VKL CAT803ZTBI−GT3 CAT803ZTBI−T3 2.32 V VKA VKL CAT809LSDI−GT3 CAT809LSDI−T3 4.63 V VLA VLD CAT809MSDI−GT3 CAT809MSDI−T3 4.38 V VLA VLD CAT809JSDI−GT3 CAT809JSDI−T3 4.00 V VLA VLD CMOS / CAT809TSDI−GT3 CAT809TSDI−T3 3.08 V VLA VLD LOW SC70−3 Push−Pull CAT809SSDI−GT3 CAT809SSDI−T3 2.93 V VLA VLD CAT809RSDI−GT3 CAT809RSDI−T3 2.63 V VLA VLD CAT809ZSDI−GT3 CAT809ZSDI−T3 2.32 V VLA VLD CAT809LTBI−GT3 CAT809LTBI−T3 4.63 V VLA VLD 3,000 CAT809HTBI−GT3 CAT809HTBI−T3 4.55 V VLA VLD CAT809MTBI−GT3 CAT809MTBI−T3 4.38 V VLA VLD CAT809JTBI−GT3 CAT809JTBI−T3 4.00 V VLA VLD CMOS / CAT809TTBI−GT3 CAT809TTBI−T3 3.08 V VLA VLD LOW SOT−23−3 Push−Pull CAT809STBI−GT3 CAT809STBI−T3 2.93 V VLA VLD CAT809RTBI−GT3 CAT809RTBI−T3 2.63 V VLA VLD CAT809ZTBI−GT3 CAT809ZTBI−T3 2.32 V VLA VLD CAT809VTBI−GT3 CAT809VTBI−T3 1.60 V VLA VLD 3. Not recommended for new designs. 4. Threshold and full part numbers will be provided on box and reel labels as well as all Shipping documents. 5. 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. 6. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device Nomenclature document, TND310/D, available at www.onsemi.com http://onsemi.com 8

CAT803, CAT809, CAT810 Table 5. ORDERING PART NUMBER Top Mark QQuuaannttiittyy Order Number (Note 4) ppeerr RReeeell NiPdAu (Note 3) Matte−Tin VVoollttaaggee NiPdAu Matte−Tin OOuuttppuutt RReesseett PPaacckkaaggee ((NNoottee 55)) CAT810LSDI−GT3 CAT810LSDI−T3 4.63 V VHA VHT CAT810MSDI−GT3 CAT810MSDI−T3 4.38 V VHA VHT CAT810JSDI−GT3 CAT810JSDI−T3 4.00 V VHA VHT CMOS / CAT810TSDI−GT3 CAT810TSDI−T3 3.08 V VHA VHT HIGH SC70−3 Push−Pull CAT810SSDI−GT3 CAT810SSDI−T3 2.93 V VHA VHT CAT810RSDI−GT3 CAT810RSDI−T3 2.63 V VHA VHT CAT810ZSDI−GT3 CAT810ZSDI−T3 2.32 V VHA VHT 3,000 CAT810LTBI−GT3 CAT810LTBI−T3 4.63 V VHA VHT CAT810MTBI−GT3 CAT810MTBI−T3 4.38 V VHA VHT CAT810JTBI−GT3 CAT810JTBI−T3 4.00 V VHA VHT CMOS / CAT810TTBI−GT3 CAT810TTBI−T3 3.08 V VHA VHT HIGH SOT−23−3 Push−Pull CAT810STBI−GT3 CAT810STBI−T3 2.93 V VHA VHT CAT810RTBI−GT3 CAT810RTBI−T3 2.63 V VHA VHT CAT810ZTBI−GT3 CAT810ZTBI−T3 2.32 V VHA VHT 3. Not recommended for new designs. 4. Threshold and full part numbers will be provided on box and reel labels as well as all Shipping documents. 5. 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. 6. For detailed information and a breakdown of device nomenclature and numbering systems, please see the ON Semiconductor Device Nomenclature document, TND310/D, available at www.onsemi.com http://onsemi.com 9

CAT803, CAT809, CAT810 PACKAGE DIMENSIONS SOT−23, 3 Lead CASE 527AG−01 ISSUE O SYMBOL MIN NOM MAX D A 0.89 1.12 A1 0.013 0.10 3 b 0.37 0.50 c 0.085 0.18 D 2.80 3.04 E1 E E 2.10 2.64 E1 1.20 1.40 e 0.95 BSC 1 2 e1 1.90 BSC e L 0.40 REF e1 L1 0.54 REF θ 0º 8º TOP VIEW A (cid:4) b L1 L A1 c SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC TO-236. http://onsemi.com 10

CAT803, CAT809, CAT810 PACKAGE DIMENSIONS SC−70, 3 Lead, 1.25x2 CASE 419AB−01 ISSUE O SYMBOL MIN NOM MAX D A 0.80 1.10 A1 0.00 0.10 A2 0.80 0.90 1.00 b 0.15 0.30 c 0.08 0.22 E1 E D 1.80 2.00 2.20 E 1.80 2.10 2.40 E1 1.15 1.25 1.35 e 0.65 BSC L 0.26 0.36 0.46 e e L1 0.42 REF L2 0.15 BSC TOP VIEW θ 0º 8º θ1 4º 10º (cid:4)1 A2 A (cid:4) L b (cid:4)1 A1 L1 c L2 SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-203. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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 CAT803/D 11

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: C atalyst / ON Semiconductor: CAT809STBI-GT3 CAT809TTBI-GT3 CAT809MTBI-GT3 CAT809LTBI-GT3 CAT809JTBI-GT3 CAT809VTBI-GT3 CAT809ZTBI-GT3 CAT809RTBI-GT3