NOT RECOMMENDED FOR NEW DESIGN APX809/810 USE APX809S/810S 3-PIN MICROPROCESSOR RESET CIRCUITS Description Pin Assignments The APX809/810 are used for microprocessor (P) supervisory circuits to monitor the power supplies in P 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 GND circuits. These circuits perform a single function: they assert a reset signal V CC whenever the V supply voltage declines below a preset threshold, CC keeping it asserted for at least 240ms after V has risen above the CC 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 V , and the outputs are CC (Top View) guaranteed to be in the correct logic state for V down to 1V. Low CC 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 30A Supply Current (Typ.) Guaranteed Reset Valid to V = 1V CC 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 P and C 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 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 V Operating Voltage Input CC 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 V Supply Voltage -0.3 to +6.0 V CC V V -0.3 to (V + 0.3) RESET RESET, RESET (Push-pull) CC I Input Current, V 20 mA CC CC I 20 mA O Output Current, RESET, RESET Continuous Power Dissipation (T = +70C), De-rate A 400 mW P D 4mW/C above +70C T Operating Junction Temperature Range -40 to +105 C OP T Storage Temperature Range -65 to +150 C ST 2 of 8 APX809/810 March 2017 Diodes Incorporated www.diodes.com Document number: DS31322 Rev. 5 - 3