BU4813FVE-TR

Supervisors Overview

The BU4813FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features a typical under-voltage detection threshold of 1.3 V with a precision of ±1%. The device operates within a reset active voltage range of 0.7 V to 7 V and utilizes an open-drain output type. It is housed in a VSOF-5 surface-mount package and supports a wide operating temperature range from -40°C to +125°C. The circuit draws a typical current of 0.40 μA when active at VDET=4.8V.

Supervisors Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated applications.
• Open-drain output configuration allows flexible interfacing with various logic families.
• High accuracy voltage detection with ±1% precision minimizes false triggering risks.

Supervisors Applications

• Portable electronic devices requiring reliable power supply monitoring
• Battery-powered systems needing low quiescent current supervision
• Industrial control circuits operating in extended temperature environments

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance documentation matches the specific production batch. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet to prevent package degradation prior to assembly.

Supervisors Selection Notes

Select this component when a fixed 1.3 V threshold is required for system supervision. Compare against BD5213G-1 if adjustable delay timers are needed, as this model lacks such functionality. Evaluate VSOF-5 footprint compatibility against existing PCB layouts. Consider the open-drain output requirements for pull-up resistor selection in the final design.

Supervisors Part Context

This part belongs to the BU48 series of standard voltage detectors from ROHM Semiconductor. It serves as a legacy component often replaced by newer generations like the BD52xx series. The VSOF-5 package provides a compact solution for space-constrained designs while maintaining robust performance across industrial temperature ranges.

Supervisors Replacement Considerations

The BD5213G-1 is documented as a similar specification replacement with the same package. Verify pinout compatibility and check for functional differences such as adjustable delay timers in the substitute part before implementation.