BU4223FVE-TR

Overview

The BU4223FVE-TR is a voltage detector IC from Rohm Semiconductor, designed for monitoring supply voltages. It features an adjustable reset delay timer and an open-drain output active low. The typical under-voltage detection threshold is 2.3V with ±1% precision. The reset active voltage range spans 0.7V to 7V. Operating current is 0.40μA (ON) and 0.55μA (OFF) at VDET=4.8V. It operates within -40°C to 125°C in a VSOF5 package.

Feature Summary

• Adjustable reset delay timer functionality
• Open-drain output configuration
• Low power consumption design

Applications

• Microprocessor system reset circuits
• Battery-powered device supervision
• Portable equipment power management

Procurement Notes

Verify the specific suffix FVE against the official datasheet to confirm package type and electrical characteristics. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for end-of-life or last-time-buy notices directly from Rohm Semiconductor before finalizing procurement plans.

Selection Notes

Select this component when an adjustable delay time is required for system reset sequencing. Ensure the 2.3V detection threshold aligns with the monitored rail. Verify that the open-drain output interface matches the receiving logic input requirements of the target application circuit.

Part Context

This part belongs to the BU42xx series of standard voltage detectors manufactured by Rohm Semiconductor. These devices are engineered for reliable supervision in compact surface-mount packages. The series offers various detection thresholds to accommodate different voltage rails in electronic systems.

Replacement Considerations

BD5223G-1 is listed as a recommended replacement with similar specifications.