BD4931FVE-TR

Overview

The BD4931FVE-TR is a single-channel voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It operates within a supply voltage range up to 10 V and features a typical threshold detection voltage of 3.1 V with an overvoltage threshold of 3.131 V. The device provides a CMOS output type and includes a fixed reset delay time of 100 us. It maintains high accuracy of 1% and consumes a static current of 750 nA. The component supports a power dissipation of 210 mW and functions reliably across an extended temperature range from -40 C to +105 C.

Feature Summary

• CMOS output interface for direct logic integration
• Fixed 100 us reset delay timer for stable signal generation
• High detection accuracy of 1% for precise monitoring
• Low static current consumption for energy efficiency

Applications

• Embedded system power supervision
• Microcontroller reset circuitry
• Battery-powered device monitoring
• Industrial control board protection

Procurement Notes

This component is officially listed as obsolete or end-of-life by the manufacturer. Availability is restricted, and distributors may indicate non-sale status in specific regions. Verify current lifecycle status and sourcing options through authorized channels before design finalization. Ensure compliance with RoHS requirements as specified in official documentation.

Selection Notes

Select this part when a fixed 3.1 V threshold with CMOS output is required. Consider the 100 us reset delay and 1% accuracy for timing-sensitive applications. Evaluate thermal constraints given the 210 mW power dissipation limit. Compare against newer series if long-term supply stability is critical for production.

Part Context

Part of the BD49 series standard voltage detectors, the BD4931FVE-TR utilizes a VSOF-5 surface mount package. It belongs to the broader PMIC category under supervisory circuits. The device lacks manual reset, watchdog timer, and chip enable functions, focusing on basic voltage monitoring tasks.

Replacement Considerations

BD5231G-1TR is documented as a recommended replacement with similar specifications.