CAT813ZI-GT3

Supervisors Overview

The CAT813ZI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring system power integrity. It operates within a supply voltage range of 1.2 V to 5.5 V and features a low quiescent current of 17 uA. The device is housed in an MSOP-8 surface-mount package and supports manual reset functionality alongside an integrated watchdog timer. It provides threshold voltages of 3 V, 3.6 V, and 5 V, with specific over-voltage and under-voltage thresholds documented at 4.75 V and 4.5 V respectively. The component is rated for industrial temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for automated system recovery from software faults
• Supports manual reset input for user-initiated system control
• Provides single-input voltage supervision with configurable threshold options

Supervisors Applications

• Microprocessor circuit monitoring
• Industrial control systems requiring voltage supervision
• Automotive electronic modules

Supervisors Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm the MSOP-8 package marking and date code alignment with official datasheets. Check for RoHS compliance documentation as specified in the manufacturer's product data. Ensure storage conditions adhere to moisture sensitivity levels defined in the handling guidelines. Validate that the specific suffix matches the required pinout and electrical characteristics.

Supervisors Selection Notes

Select this component when a single-channel voltage supervisor with watchdog capabilities is required. The MSOP-8 package suits space-constrained designs compared to larger SOIC variants. Consider the 17 uA quiescent current for battery-sensitive applications. Verify that the available threshold voltages (3 V, 3.6 V, 5 V) align with the target system rail. Note that this specific variant includes manual reset support, distinguishing it from non-reset versions.

Supervisors Part Context

Part of the CAT813 series, which offers various voltage supervisors with different packages and features. This ZI suffix denotes the MSOP-8 package with specific threshold and reset configurations. The series is categorized under PMIC - Power Management ICs, specifically Voltage Supervisory circuits. It shares functional similarities with other CAT813 variants but differs in package type and exact electrical parameters.

Supervisors Replacement Considerations

Check for CAT813TVI-GT3 if an SOIC-8 package is acceptable instead of MSOP-8. Verify equivalent threshold voltages and watchdog functionality before substitution. Ensure manual reset capability is maintained if required by the design. Confirm operating temperature ranges and supply voltage limits match the original specifications.