BU4916G-TR

Supervisors Overview

The BU4916G-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages in electronic systems. It operates within a supply voltage range of 0.7 V to 7 V and features a detection threshold of 1.6 V with ±1% accuracy. The device utilizes an SSOP-5 surface-mount package and draws a typical operating current of 550 nA. It provides a CMOS output without manual reset or watchdog timer functions, supporting an industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• CMOS output interface for direct logic integration
• High detection accuracy with ±1% precision
• Ultra-low current consumption for battery efficiency

Supervisors Applications

• Microprocessor power supply monitoring
• Portable battery-powered equipment supervision
• Multi-output power system tracking

Supervisors Procurement Notes

Verify the specific datasheet version as this component may be classified as Not Recommended for New Designs (NRND). Confirm availability through authorized distributors and check for lead time variations due to potential end-of-life status. Ensure the SSOP-5 package matches your PCB footprint requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 1.6 V threshold is required for low-voltage monitoring applications. The CMOS output type distinguishes it from open-drain variants in the same series. Consider the narrow operating voltage window starting at 0.7 V for compatibility with single-cell lithium-ion or alkaline battery systems requiring precise under-voltage detection.

Supervisors Part Context

This part belongs to the BU49xx series of standard CMOS voltage detectors. The series offers various detection voltages in 0.1 V increments ranging from 0.9 V to 4.8 V. The BU4916G-TR specifically targets the 1.6 V detection point, providing a standardized solution for microcontroller reset circuits and power management supervisory tasks in compact consumer electronics.

Supervisors Replacement Considerations

BD5216G-1: Recommended replacement with similar SSOP-5 package and 1.6 V threshold.