CAT1163WI-45-GT3

Supervisors Overview

The CAT1163WI-45-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It operates within a supply voltage range of 2.7 V to 6 V and features a threshold voltage of 4.5 V with an overvoltage threshold of 4.75 V. The device includes a manual reset input, a watchdog timer, and provides active high, active low, or open drain outputs. It has a reset delay time of 270 ms and consumes 3 mA of operating current. Packaged in an SOIC-8 surface-mount format, it supports industrial temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Supports configurable output types including active high, active low, and open drain
• Includes manual reset capability for controlled system recovery

Supervisors Applications

• CPU voltage supervision
• System reset generation
• Watchdog timer implementation

Supervisors Procurement Notes

Verify component authenticity through authorized channels as this part may be discontinued. Confirm package integrity and pin alignment against the SOIC-8 specification. Ensure compatibility with existing board layouts due to potential lead time variations in secondary markets. Validate electrical parameters against original datasheets before integration into production designs.

Supervisors Selection Notes

Select this component when a 4.5 V threshold is required for systems operating between 2.7 V and 6 V. Consider the integrated watchdog feature if software fault detection is necessary. The SOIC-8 package suits space-constrained surface-mount designs. Verify that the 3 mA current consumption aligns with power budget constraints compared to lower-power alternatives.

Supervisors Part Context

This part belongs to the CAT1163 series of supervisory circuits from onsemi. It shares functional similarities with other variants like the CAT1163WI-30-GT3 but differs in threshold voltage settings. The series is categorized under PMIC voltage supervisors, offering integrated EEPROM storage in some configurations, though specific storage details depend on the exact suffix.

Supervisors Replacement Considerations

CAT1163WI-30-GT3 offers similar functionality with a 3.0 V threshold instead of 4.5 V.