BU4928G-TR

Supervisors Overview

The BU4928G-TR is a low-voltage CMOS voltage detector manufactured by ROHM Semiconductor. It operates within a supply voltage range of 0.7 V to 7 V and features a typical threshold voltage of 2.8 V with ±1% precision. The device provides a low-active reset output without manual reset or watchdog timer functions. It is housed in an SSOP-5 package, supports surface mount installation, and operates across a temperature range of -40°C to +125°C.

Supervisors Feature Summary

• CMOS technology ensures ultra-low power consumption for battery-operated applications
• High accuracy voltage detection with ±1% threshold precision
• Compact SSOP-5 surface-mount package design

Supervisors Applications

• Microprocessor power supply monitoring
• Portable battery-powered equipment
• Test and measurement instruments

Supervisors Procurement Notes

Verify the specific datasheet revision and RoHS compliance status before procurement. Confirm that the SSOP-5 package dimensions match the target PCB footprint. Check for any end-of-life notifications as this component may be subject to obsolescence management protocols.

Supervisors Selection Notes

Select this component when a fixed 2.8V threshold is required for system supervision. Ensure the application does not require manual reset capabilities or adjustable delay timers. Verify that the open-drain output type aligns with the downstream logic interface requirements.

Supervisors Part Context

This part belongs to the BU49xx series of standard voltage detectors designed for supervisory circuits. It serves as a dedicated power management IC for monitoring single-channel input voltages in embedded systems requiring reliable reset generation under varying load conditions.

Supervisors Replacement Considerations

BD5228G-1TR is documented as a similar specification replacement with comparable threshold characteristics.