NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 3-PIN MICROPROCESSOR RESET CIRCUITS Description Pin Assignments The APX809/810 are used for microprocessor (µP) supervisory circuits to monitor the power supplies in µP and digital systems. They (Top View) provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V, 3.3V, 3.0V powered circuits. GND These circuits perform a single function: they assert a reset signal V CC whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 240ms after VCC has risen above the RESET (RESET) reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. The APX809/810 have push pull outputs. The APX809 have an active low RESET output, while the SOT23 (SA Package) APX810 has an active high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are (Top View) guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the APX809/810 ideal for use in portable equipment. The APX809/810 is available in a 3-pin SOT23 package. RESET (RESET) Features V CC  Precision Monitoring of 2.5V, 3V, 3.3V, and 5V Power-Supply Voltages GND  Fully Specified Over Temperature  Available in Three Output Configurations  Push-Pull RESET Active Low (APX809) SOT23 (SR Package)  Push-Pull RESET Active High (APX810)  200ms Typ Power-On Reset Pulse Width Applications  30µA Supply Current (Typ.)  Guaranteed Reset Valid to VCC = 1V  Computers  No External Components  Controllers  SOT23: Available in “Green” Molding Compound (No Br, Sb)  Intelligent Instruments  Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)  Critical µP and µC Power Monitoring  Halogen and Antimony Free. “Green” Device (Note 3)  Portable/Battery Powered Equipment Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. Typical Applications Circuit V CC C IN 100nF V V CC CC APX8XX Microprocessor RESET RESET INPUT (RESET) GND GND APX809/810 1 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Pin Descriptions Pin Name Description GND Ground Reset Output Pin RESET L: for APX809 (RESET) H: for APX810 VCC Operating Voltage Input Functional Block Diagram Driver Delay Circuit RESET / RESET VREF Absolute Maximum Ratings Symbol Parameter Rating Unit ESD HBM Human Body Model ESD Protection 5 kV ESD MM Machine Model ESD Protection 500 V VCC Supply Voltage -0.3 to +6.0 V VRESET RESET, RESET (Push-pull) -0.3 to (VCC + 0.3) V ICC Input Current, VCC 20 mA IO Output Current, RESET, RESET 20 mA PD C4monWtin/°uCo uasb oPvoew +e7r 0D°Cis sipation (TA = +70°C), De-rate 400 mW TOP Operating Junction Temperature Range -40 to +105 °C TST Storage Temperature Range -65 to +150 °C APX809/810 2 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Recommended Operating Conditions Symbol Parameter Min Max Unit VCC Supply Voltage 1.1 5.5 V VIN Input Voltage 0 (VCC + 0.3) V TA Operating Ambient Temperature Range -40 +85 oC tR VCC Rising Time (VCC = 0 to VT) — 100 µs Electrical Characteristics (@TA = -40 to +85°C, unless otherwise note. Typical values are at TA = +25°C.) Symbol Parameter Test Conditions Min Typ Max Unit VCC VCC Range TA = 0oC to +70oC 1.0 — 5.5 V ICC Supply Current VTH + 0.2V — 30 40 μA APX809/810-23 2.21 2.25 2.30 APX809/810-26 2.59 2.63 2.69 APX809/810-29 2.88 2.93 3.00 APX809/810-31 TA = 0oC to +85oC 3.02 3.08 3.15 V APX809/810-40 3.93 4.00 4.08 APX809/810-44 4.31 4.38 4.47 Reset APX809/810-46 4.56 4.63 4.72 VTH Threshold APX809/810-23 2.20 2.25 2.30 APX809/810-26 2.57 2.63 2.69 APX809/810-29 2.86 2.93 3.00 APX809/810-31 TA = -40oC to +85oC 3.00 3.08 3.15 V APX809/810-40 3.92 4.00 4.08 APX809/810-44 4.29 4.38 4.47 APX809/810-46 4.54 4.63 4.72 Reset Threshold Tempco — — 30 — ppm/oC tS Set-up Time VCC = VTH to (VTH - 100mV) — 20 — μs tDELAY Reset Active Timeout Period TA = 0oC to +85oC 140 200 280 ms VCC = VTH -0.2, ISINK = 1.2mA — — 0.3 VOL RESETOutput Voltage Low VCC = VTH -0.2, ISINK = 3.2mA — — 0.4 V (APX809) VCC > 1.0V, ISINK = 50µA — — 0.3 VOH (RAEPSX8E09T) Output Voltage-High VIVISSCCOOCCUU RR>>CC VVEE TT==HH 58++000000..22µµ,,AA V0C.C8 V- C1C.5 —— —— V RESET Output Voltage-Low VCC = VTH +0.2, ISINK = 1.2mA — — 0.3 VOL (APX810) VCC = VTH +0.2, ISINK = 3.2mA — — 0.4 V VOH R(AEPSXE8T1 0O) utput Voltage-High 1IS.O8UVR <C EV =C C1 5<0 VµTAH -0.2, 0.8VCC — — V θJA TAhmebrmienatl Resistance Junction-to- SOT23 (Note 4) — 201 — oC/W Thermal Resistance θJC Junction-to-Case SOT23 (Note 4) — 56 — oC/W Note: 4. Test condition for SOT23: Devices mounted on FR-4 substrate PC board, 2oz copper, with minimum recommended pad layout. APX809/810 3 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Performance Characteristics RESET Timeout Period vs. Temperature RESET Threshold Voltage vs. Temperature 250 3.2 S) 240 V) 3.15 d (m 230 age ( 3.1 o 220 t ri ol out Pe 220100 hold V 3.053 me 190 rs SET Ti 117800 ET The 2.29.59 E S R 160 E 2.85 R 150 2.8 -40℃ -25℃ 0℃ 25℃ 50℃ 85℃ 105℃ 125℃ -40℃ -25℃ 0℃ 25℃ 50℃ 85℃ 105℃ 125℃ Temperature Temperature Vcc Supply Current vs. Temperature Supply Current vs. Vcc (Vcc=3.3V Vth=2.93V) 35 40 34 35 A) 33 A) nt (u 32 nt (u 30 urre 31 urre 25 C 30 C 20 ply 29 ply 15 up 28 up S S 10 c 27 c V 26 5 25 0 -40℃ -25℃ 0℃ 25℃ 50℃ 85℃ 105℃ 125℃ 1.5V 2.5V 3.3V 4.0V 5.0V 5.5V Temperature Vcc Timing Diagram Vth Vcc Vth T T Delay Delay /RESET Vth T T Delay Delay RESET APX809/810 4 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Functional Description A microprocessor’s (µP’s) reset input starts the µP in a known state. The APX809/810 assert reset to prevent code-execution errors during power- up, power-down, or brownout conditions. They assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 240ms after VCC has risen above the reset threshold. The APX809/810 have a push-pull output stage. Ensuring a Valid Reset Output Down to VCC = 0 RESET is guaranteed to be a logic low for VCC > 1V. Once VCC exceeds the reset threshold, an internal timer keeps RESET low for the reset timeout period; after this interval, RESET goes high. If a brownout condition occurs (VCC dips below the RESET reset threshold), RESET goes low. Any time VCC goes below the reset threshold, the internal timer resets to zero, and RESET goes low. The internal timer starts after VCC returns above the reset threshold, and RESET remains low for the reset timeout period. When VCC falls below 1V, the APX809 RESET output no longer sinks current — it becomes an open circuit. Therefore, high-impedance CMOS logic inputs connected to RESET can drift to undetermined voltages. This presents no problem in most applications since most µP and other circuitry is inoperative with VCC below 1V. However, in applications where RESET must be valid down to 0V, adding a pull down resistor to RESET causes any stray leakage currents to flow to ground, holding RESET low. R1’s value is not critical; 100k are large enough not to load RESET and small enough to pull RESET to ground. For the RESET APX810 if is required to remain valid for VCC < 1V. Benefits of Highly Accurate Reset Threshold Most µP supervisor ICs has reset threshold voltages between 5% and 10% below the value of nominal supply voltages. This ensures a reset will not occur within 5% of the nominal supply, but will occur when the supply is 10% below nominal. When using ICs rated at only the nominal supply ±5%, this leaves a zone of uncertainty where the supply is between 5% and 10% low, and where the reset may or may not be asserted. Ordering Information APX 8 XX - XX XX G - 7 Enable Voltage Package Green Packing 09 : Active-Low 46 :4.63 SA/SR : SOT23 G : Green 7 : Tape & Reel 10 : Active-High 44 :4.38 40 :4.00 31 :3.08 29 :2.93 26 : 2.63 23 : 2.25 Packaging 7” Tape and Reel Part Number Package Code (Note 5) Quantity Part Number Suffix APX809-XXSAG-7 SA SOT23 3000/Tape & Reel -7 APX810-XXSAG-7 SA SOT23 3000/Tape & Reel -7 APX809-XXSRG-7 SR SOT23 3000/Tape & Reel -7 APX810-XXSRG-7 SR SOT23 3000/Tape & Reel -7 Note: 5. Pad layout as shown in Diodes Incorporated’s package outline PDFs, which can be found on our website at http://www.diodes.com/package-outlines.html. APX809/810 5 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Marking Information (1) SOT23 ( Top View ) 3 XX : Identification code Y : Year 0~9 W : Week : A~Z : 1~26 week; XX Y W X a~z : 27~52 week; z represents 52 and 53 week 1 2 X : A~Z : Green Device Package Identification Code APX809-46SA SOT23 X2 APX809-44SA SOT23 X3 APX809-40SA SOT23 X4 APX809-31SA SOT23 X5 APX809-29SA SOT23 X6 APX809-26SA SOT23 X7 APX809-23SA SOT23 X8 APX810-46SA SOT23 XA APX810-44SA SOT23 XB APX810-40SA SOT23 XC APX810-31SA SOT23 XD APX810-29SA SOT23 XE APX810-26SA SOT23 XF APX810-23SA SOT23 XG APX809-46SR SOT23 Y2 APX809-44SR SOT23 Y3 APX809-40SR SOT23 Y4 APX809-31SR SOT23 Y5 APX809-29SR SOT23 Y6 APX809-26SR SOT23 Y7 APX809-23SR SOT23 Y8 APX810-46SR SOT23 YA APX810-44SR SOT23 YB APX810-40SR SOT23 YC APX810-31SR SOT23 YD APX810-29SR SOT23 YE APX810-26SR SOT23 YF APX810-23SR SOT23 YG APX809/810 6 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 Package Outline Dimensions Please see http://www.diodes.com/package-outlines.html for the latest version. SOT23 All 7° H SOT23 GAUGE PLANE Dim Min Max Typ 0.25 J A 0.37 0.51 0.40 K1 K B 1.20 1.40 1.30 C 2.30 2.50 2.40 a D 0.89 1.03 0.915 A M F 0.45 0.60 0.535 L L1 G 1.78 2.05 1.83 H 2.80 3.00 2.90 J 0.013 0.10 0.05 K 0.890 1.00 0.975 C B K1 0.903 1.10 1.025 L 0.45 0.61 0.55 L1 0.25 0.55 0.40 M 0.085 0.150 0.110 a 0° 8° -- D All Dimensions in mm F G Suggested Pad Layout Please see http://www.diodes.com/package-outlines.html for the latest version. SOT23 Y Dimensions Value (in mm) C 2.0 X 0.8 Y1 C X1 1.35 Y 0.9 Y1 2.9 X X1 APX809/810 7 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

NOT RECOMMENDED FOR NEW DESIGN USE APX809S/810S APX809/810 IMPORTANT NOTICE DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION). Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages. Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes Incorporated. LIFE SUPPORT Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems. Copyright © 2017, Diodes Incorporated www.diodes.com APX809/810 8 of 8 March 2017 Document number: DS31322 Rev. 5 - 3 www.diodes.com © Diodes Incorporated

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: D iodes Incorporated: APX810-44SAG-7 APX810-40SRG-7 APX809-31SRG-7 APX810-26SAG-7 APX809-46SAG-7 APX810-31SAG-7 APX810-23SRG-7 APX809-40SRG-7 APX809-44SRG-7 APX810-46SRG-7 APX810-23SAG-7 APX809-29SAG-7 APX810-29SRG-7 APX810-46SAG-7 APX809-23SAG-7 APX809-46SRG-7 APX809-40SAG-7 APX810-31SRG-7 APX809-26SRG-7 APX809-29SRG-7 APX810-40SAG-7 APX810-26SRG-7 APX809-31SAG-7 APX810-44SRG-7 APX809-44SAG-7 APX810-29SAG-7 APX809-26SAG-7 APX809-23SRG-7