CAT809TSDI-T3

Supervisors Overview

The CAT809TSDI-T3 is a microprocessor power supply supervisor from onsemi, designed to monitor digital system voltages. It features a push-pull active low reset output and operates within an industrial temperature range of -40°C to +85°C. The device supports monitoring for +5.0V, +3.3V, +3.0V, and +2.5V supplies with specified tolerance levels. It provides reset validity down to VCC = 1.0V and includes power supply transient immunity. Packaged in a compact SC-70-3 (SOT-23) surface-mount format, it serves as a direct replacement for legacy MAX809 components.

Supervisors Feature Summary

• Push-pull active low reset output configuration
• Direct replacement compatibility with MAX809 devices
• Reset valid down to 1.0V supply voltage
• Industrial temperature range operation

Supervisors Applications

• Computers and servers
• Wireless communications systems
• Embedded control systems
• Intelligent instruments

Supervisors Procurement Notes

Verify the specific threshold voltage variant corresponding to the 'TS' suffix against official datasheets before procurement. Confirm package type is SC-70-3. Ensure the active low push-pull output matches design requirements. Check RoHS compliance status and lead times through authorized distributors. Validate that the component meets the required industrial temperature specifications for the target application environment.

Supervisors Selection Notes

Select this component when a push-pull output is required instead of open-drain configurations found in other family members like the CAT803. It is suitable for designs needing direct MAX809 pin-to-pin replacement. Consider the SC-70-3 package for space-constrained PCB layouts. Verify that the monitored voltage level aligns with the specific threshold options available within the CAT809 series.

Supervisors Part Context

Part of the CAT803/CAT809/CAT810 supervisory circuit family from onsemi. These devices are engineered for reliable power management in digital systems. The CAT809 specifically distinguishes itself with its push-pull output stage, offering stronger drive capability compared to open-drain alternatives. The series maintains compatibility with older industry standards while providing modern efficiency and reliability features.

Supervisors Replacement Considerations

CAT809ZSDI-T3

Supervisors FAQ

What is the output configuration of the CAT809TSDI-T3?

It features a push-pull active low reset output.

Is this component compatible with MAX809 applications?

Yes, it is a direct replacement for MAX809 in industrial temperature range applications.