CAT1162WI28

Supervisors Overview

The CAT1162WI-28-T3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU systems. It operates within a supply voltage range of 2.7 V to 6 V and features a fixed threshold voltage of 2.8 V. The device provides a reset delay time of 270 ms and includes manual reset functionality. It supports active high, active low, and open drain output types. The component is housed in an SOIC-8 package and operates at a working supply current of 3 mA. It lacks a watchdog timer and battery backup switch, with an overvoltage threshold of 3 V.

Supervisors Feature Summary

• Integrates a precision voltage supervisor with brown-out protection for microcontroller-based systems
• Provides flexible output configurations including active high, active low, and open drain options
• Includes manual reset capability for system control

Supervisors Applications

• CPU power supply monitoring
• Microcontroller system supervision
• Brown-out protection circuits

Supervisors Procurement Notes

Verify the exact suffix (e.g., -T3, -G) as it determines packaging and specific electrical tolerances. Confirm availability status as distribution listings indicate potential discontinuation or regional sales restrictions. Ensure the selected variant matches the required threshold voltage and output configuration for the target application design.

Supervisors Selection Notes

Select this component when a single-channel voltage supervisor with manual reset is required without watchdog functionality. Compare against the CAT1163 series if integrated memory or watchdog features are needed. Verify that the 2.8 V threshold aligns with the monitored rail's nominal voltage and tolerance requirements.

Supervisors Part Context

This part belongs to the CAT1162 family of supervisory circuits from onsemi. Unlike the CAT1161, which integrates a watchdog timer and I2C EEPROM, the CAT1162 focuses solely on voltage supervision and manual reset functions. It serves as a cost-effective solution for basic power management needs in embedded systems.

Supervisors Replacement Considerations

CAT1162WI-30-G offers a 3.0 V threshold. CAT1163WI-28-G adds a watchdog timer to the same 2.8 V supervision profile.