APX803L-43W5-7

Supervisors Overview

The APX803L-43W5-7 is a micro-power voltage detector manufactured by Diodes Incorporated, designed for microprocessor supervisory circuits. It monitors system voltage with a fixed threshold of 4.3 V and operates within a supply range of 900 mV to 5.5 V. The device features an active low, open-drain output and provides a reset delay time of 220 ms. It is housed in a SOT-25-5 package and supports surface mount installation. The component exhibits high accuracy of 1.5% and consumes only 1 µA of supply current, making it suitable for battery-powered applications.

Supervisors Feature Summary

• Provides precise voltage monitoring with fixed internal detection levels ranging from 1.2 V to 5.0 V in 0.1 V steps.
• Features ultra-low supply current consumption of 1 µA typical to minimize power burden on efficient systems.
• Delivers reliable system reset via active low open-drain output with configurable reset delay times.

Supervisors Applications

• Microprocessor (µP) supervisory circuits
• Battery-powered portable devices
• Smartphone power management
• Internet equipment power monitoring

Supervisors Procurement Notes

Verify the specific suffix W5G or similar against official Diodes Incorporated datasheets to confirm package type and tape/reel specifications. Ensure the 4.3 V threshold matches the design requirement. Check RoHS compliance status and moisture sensitivity level before integration. Confirm availability as some variants may be subject to discontinuation notices.

Supervisors Selection Notes

Select this component when a fixed 4.3 V threshold is required for single-channel voltage monitoring. The APX803L series is appropriate for designs prioritizing minimal quiescent current. Consider the SOT-25-5 package constraints for PCB layout. Verify that the 220 ms reset delay aligns with the target system's startup timing requirements.

Supervisors Part Context

This part belongs to the APX803L series of micropower voltage detectors developed by Diodes Incorporated. The series targets µP and digital systems requiring efficient power supervision. It offers a wide range of detection voltages with high accuracy, distinguishing it from standard supervisors by its ultra-low power profile suitable for energy-constrained environments.

Supervisors Replacement Considerations

Cross-reference with other APX803L variants having different threshold voltages if the 4.3 V setting is not optimal. Verify pinout compatibility with existing SOT-25 footprints. Consult Diodes Incorporated for current production status as some older suffixes may be discontinued.

Supervisors FAQ

What is the typical supply current for the APX803L-43W5-7?

The typical supply current is 1 µA, which imposes no significant burden on system power efficiency.

Does the APX803L-43W5-7 include a manual reset function?

No, the APX803L series typically does not include a manual reset input; it relies on automatic voltage detection.