CAT824YSDI-GT3

Supervisors Overview

The CAT824YSDI-GT3 is a system supervisory voltage reset circuit manufactured by onsemi. It operates within a supply voltage range of 1.2 V to 5.5 V and features a fixed reset threshold voltage of 4.38 V. The device provides an active high or active low push-pull output with a reset delay time of 200 ms. It includes a watchdog timer function and manual reset capability. The component is housed in a TSOT-23-5 package and supports industrial operating temperatures from -40 °C to +85 °C.

Supervisors Feature Summary

• Monitors system voltage and asserts reset until the supply reaches the specified trip value
• Includes a watchdog input for monitoring system signals and issuing resets upon timeout
• Supports manual reset functionality via an external input pin

Supervisors Applications

• Electronic systems requiring basic reset and monitoring functions
• Processor supervisor circuits ensuring stable power-up sequences
• Applications needing watchdog timer protection against signal failures

Supervisors Procurement Notes

Verify the specific suffix 'Y' indicates the 4.38 V threshold variant. Confirm the 'S' denotes the TSOT-23-5 package type. Ensure compatibility with the required logic levels for active high/low outputs. Check RoHS compliance status as per current manufacturing data sheets.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold is required for system supervision. Consider the TSOT-23-5 package for space-constrained designs. Verify that the 200 ms reset delay meets the system power stabilization requirements. Ensure the manual reset feature aligns with the system design needs.

Supervisors Part Context

The CAT824 series provides system supervisory voltage reset functions with watchdog and manual reset capabilities. These devices monitor system voltage and maintain reset output until the voltage reaches the specified trip value. The internal timer allows the system power supply to stabilize before releasing the reset condition.

Supervisors Replacement Considerations

CAT824MTDI-GT3: Different threshold voltage (4.38 V vs unspecified in source, but distinct part). CAT824UTDI-GT3: Different threshold voltage (2.00 V). Verify exact threshold and package compatibility before substitution.