BU4928FVE-TR

Supervisors Overview

The BU4928FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It operates within a supply voltage range of 0.7 V to 7 V and features a typical under-voltage detection threshold of 2.8 V with ±1% precision. The device utilizes a CMOS output type and lacks manual reset, watchdog timer, or battery backup switch functionalities. It is housed in a VSOF5 package (1.6x1.6 mm) and supports an operating temperature range from -40°C to +125°C.

Supervisors Feature Summary

• CMOS output structure for low-power voltage supervision
• Compact VSOF5 surface-mount packaging
• High accuracy voltage detection with hysteresis

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing reliable power-fail detection
• Microprocessor reset circuits in consumer electronics

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and lead times as availability may be limited. Ensure the VSOF5 footprint matches your PCB design before finalizing orders.

Supervisors Selection Notes

Select this component when a compact, low-current voltage monitor with precise 2.8V threshold is required. Consider the CMOS output compatibility with digital logic levels. Evaluate thermal performance within the specified industrial temperature range for robust operation.

Supervisors Part Context

Part of the BU49xx series of standard voltage detectors, offering various threshold options. Designed for general-purpose power management in space-constrained applications where low quiescent current and high reliability are critical.

Supervisors Replacement Considerations

BD5228G-1 is listed as a recommended replacement with similar specifications, though it features an open-drain output and SSOP5 package instead of CMOS and VSOF5.