CAT1027WI-45-GT3

Supervisors Overview

The CAT1027WI-45-GT3 is a Voltage Supervisory circuit manufactured by onsemi, designed for CPU supervision applications. It integrates a watchdog timer and features manual reset capability. The device operates within a supply voltage range of 2.7 V to 6 V, with a threshold voltage of 4.5 V and an overvoltage threshold of 4.75 V. It utilizes an SOIC-8 package and supports SMD/SMT installation. Key electrical parameters include a reset delay time of 270 ms, a maximum power dissipation of 1 W, and a quiescent current of 3 mA. The component functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Includes manual reset functionality for controlled system recovery
• Provides active high, active low, and open drain output options

Supervisors Applications

• CPU supervision in embedded systems
• Voltage monitoring in industrial control units
• Power management in consumer electronics

Supervisors Procurement Notes

Verify the obsolete status and limited availability before design finalization. Confirm RoHS compliance details through official datasheets. Check for alternative sourcing channels as standard distribution may be restricted. Ensure compatibility with existing PCB footprints and thermal requirements during procurement planning.

Supervisors Selection Notes

Select this component when a supervisory circuit with integrated EEPROM or specific voltage thresholds is required. Compare the 4.5 V threshold against system operating voltages to ensure proper triggering. Evaluate the 270 ms reset delay against system startup timing requirements. Consider the SOIC-8 package constraints for board space limitations.

Supervisors Part Context

This part belongs to the CAT1027 series of voltage supervisory circuits from onsemi. It is categorized under PMIC - Power Management ICs. The series typically includes variants with different voltage thresholds and memory configurations. This specific model focuses on supervision with a 4.5 V threshold.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-references with other manufacturers offering similar supervisory circuits with watchdog timers and manual reset features.