APX803S-23SR-7

Supervisors Overview

The APX803S-23SR-7 is a microprocessor supervisory circuit manufactured by Diodes Incorporated. It operates within a supply voltage range of 1 V to 5.5 V and features a fixed threshold voltage of 2.25 V. The device provides an active high, push-pull output with a reset delay time of 1.7 ms. It is housed in a SOT-23-3 package and supports surface mount installation. The component functions without manual reset, watchdog timer, or battery backup switch capabilities.

Supervisors Feature Summary

• Provides automatic system reset upon detection of power supply voltage dropping below the specified threshold level
• Delivers a stable logic-high output signal through a push-pull configuration for direct interface compatibility
• Ensures reliable operation across extended industrial temperature ranges without requiring external components

Supervisors Applications

• Microprocessor (MPU) reset circuits
• Digital system power supervision
• Battery-powered device monitoring

Supervisors Procurement Notes

Verify the specific suffix 'SR' indicates the active high push-pull output variant, distinct from 'SA' open-drain versions. Confirm RoHS compliance status and check for any recent lifecycle notifications such as NRND or obsolescence warnings before finalizing procurement plans.

Supervisors Selection Notes

Select this component when an active high output is required for direct logic interfacing. Ensure the 2.25 V threshold aligns with the target system's minimum operating voltage. Verify that the 1.7 ms delay meets the timing requirements of the controlled processor during power-up sequences.

Supervisors Part Context

This part belongs to the APX803S series of simple reset/voltage monitor circuits. It shares the SOT-23-3 form factor with other variants but differs in output type and threshold settings. The series targets low-cost, space-constrained applications requiring basic power supervision functionality.

Supervisors Replacement Considerations

APX803S00-23SA-7 serves as a parameter equivalent alternative, though it features an active low open-drain output rather than active high push-pull. Verify output compatibility before substitution.