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APX803 - 3-PIN MICROPROCESSOR RESET

General Description

The APX803/D is used for microprocessor (µP) supervisory circuits to monitor the power supplies in µP and digital systems.

They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V, 3.3V, 3.0V powered circuits.

Key Features

  • Precision Monitoring of 2.5V, 3V, 3.3V, and 5V Power-Supply Voltages.
  • Fully Specified Over Temperature.
  • Open-drain RESET Active Low.
  • Power-On/Power Supply Glitch Reset Pulse.
  • APX803D 2ms (Typ).
  • APX803 200ms (Typ).
  • 30µA Supply Current (Typ. ).
  • Guaranteed Reset Valid to VCC = 1V.
  • No External Components.
  • SOT23: Available in “Green” Molding Compound (No Br, Sb).
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2).
  • Halogen and Antimony Fr.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NOT RECOMMENDED FOR NEW DESIGN USE APX803S APX803/D 3-PIN MICROPROCESSOR RESET CIRCUIT Description The APX803/D is used for microprocessor (µP) supervisory circuits to monitor the power supplies in µP and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 5V, 3.3V, 3.0V powered circuits. These circuits perform a single function: they assert a reset signal on power up and whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for a fixed period of time after VCC has risen above the reset threshold. For the APX803D this period is a minimum of 1ms while for other APX803 variants it is at least 140ms.