APX803-40SAG-7

Supervisors Overview

The APX803-40SAG-7 is a voltage monitor manufactured by Diodes Incorporated, designed for supervisory circuits in microprocessor and digital systems. It features a fixed threshold voltage of 4 V with an active low, open drain output type. The device operates within a supply voltage range up to 5.5 V and includes a reset delay time of 200 ms. It supports four monitored inputs and lacks manual reset, watchdog timer, or battery backup switch functions. The component is housed in a SOT-23R-3 package and is rated for operation between -40°C and +85°C.

Supervisors Feature Summary

• Provides fixed voltage monitoring with active low open drain output
• Designed for microprocessor and digital system supervision
• Operates without manual reset or watchdog timer functionality

Supervisors Applications

• Microprocessor supervisory circuits
• Digital system power monitoring
• Voltage detection in embedded systems

Supervisors Procurement Notes

Verify the current lifecycle status before procurement, as this component may be marked as not recommended for new designs. Confirm that the specific threshold voltage and package variant align with the target application requirements. Ensure compatibility with existing board layouts due to the SOT-23R-3 footprint constraints.

Supervisors Selection Notes

Select this component when a fixed 4 V threshold is required for system supervision. Consider the open drain output configuration for interface compatibility with downstream logic. Evaluate the 200 ms reset delay against system startup timing requirements. Verify that the absence of additional features like watchdog timers meets the design simplicity goals.

Supervisors Part Context

This part belongs to the APX803 series of voltage monitors from Diodes Incorporated. The series targets applications requiring simple, reliable power supply supervision. The specific suffix indicates the threshold voltage and package type within the broader product family.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.