BU4932G-TR

Supervisors Overview

The BU4932G-TR is a CMOS voltage detector from ROHM Semiconductor, designed for monitoring single-input power supply lines. It features a fixed threshold voltage of 3.2 V with a precision of ±1%. The device operates within a reset active voltage range of 0.7 V to 7 V and supports a maximum supply voltage of 10 V. It provides a CMOS output type with a reset delay time of 100 µs. The component functions without manual reset or watchdog timer capabilities. It is housed in an SSOP-5 package and operates across a temperature range of -40°C to +105°C.

Supervisors Feature Summary

• CMOS output interface for digital logic compatibility
• Fixed 3.2 V detection threshold with high accuracy
• Low current consumption design for battery applications
• Compact SSOP-5 surface mount packaging

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing precise voltage supervision
• Microcontroller reset circuits in consumer electronics
• General-purpose voltage monitoring in industrial equipment

Supervisors Procurement Notes

Verify the obsolete status before procurement, as this part may be discontinued or restricted. Confirm availability through authorized distributors only. Ensure the SSOP-5 package matches your PCB footprint. Check RoHS compliance documentation for regulatory requirements. Validate that the 3.2 V threshold meets your specific circuit design needs.

Supervisors Selection Notes

Select this component when a fixed 3.2 V threshold is required with CMOS output. Consider the SSOP-5 package size for space-constrained designs. Evaluate the 100 µs reset delay against system timing requirements. Compare current consumption figures with alternative detectors if battery life is critical. Ensure the operating temperature range suits the intended environment.

Supervisors Part Context

This part belongs to the BU49xx series of standard CMOS reset ICs from ROHM. The series offers various detection voltages from 0.9 V to 4.8 V in 0.1 V increments. The BU4932G-TR specifically targets applications needing a 3.2 V threshold. It shares common characteristics with other members like the BU4920G-TR and BU4912G-TR, differing primarily in threshold voltage and package options.

Supervisors Replacement Considerations

The BD5232G-1 is listed as a recommended replacement with similar specifications. Verify pinout compatibility and electrical parameter differences before substitution. The BD5232G-1 offers adjustable delay and open-drain output, which may require circuit modifications.