CAT1832L-G

Supervisors Overview

The CAT1832L-G is a voltage supervisory circuit manufactured by onsemi, designed for monitoring single power supply rails. It operates within a supply voltage range of 1 V to 5.5 V and features a manual reset input alongside an integrated watchdog timer. The device provides active low push-pull outputs with configurable thresholds, including options for 3.3 V and 5 V monitoring levels. Key electrical parameters include a reset delay time of 1 second, a maximum operating temperature of +85 °C, and a minimum operating temperature of -40 °C. It draws a typical working supply current of 35 µA and is housed in an MSOP-8 surface-mount package.

Supervisors Feature Summary

• Integrates a watchdog timer function for system reliability monitoring
• Supports manual reset capability via dedicated input pin
• Provides active low push-pull output configuration
• Operates across a wide industrial temperature range

Supervisors Applications

• Embedded systems requiring power supply supervision
• Microcontroller reset circuits with watchdog functionality
• Industrial control units operating in harsh environments

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and material composition declarations prior to integration. Ensure the specific suffix matches design requirements as obsolete variants may lack updated documentation. Cross-reference datasheet revisions to validate parameter consistency against current production standards.

Supervisors Selection Notes

Select this component when a single-supervisor IC with integrated watchdog and manual reset is required. Verify that the 35 µA quiescent current meets system power budgets. Ensure the MSOP-8 footprint aligns with PCB layout constraints. Confirm that the 1-second reset delay is compatible with target microcontroller startup sequences and that the 5.5 V maximum rating exceeds the highest expected supply voltage.

Supervisors Part Context

This part belongs to the CAT1832 series of supervisory circuits from onsemi. The series focuses on providing reliable power management solutions for embedded applications. The CAT1832L-G variant specifically denotes the lead-free and halogen-free version compliant with environmental directives. It serves as a specialized PMIC sub-component for voltage monitoring tasks.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.