BU4230FVE-TR

Overview

The BU4230FVE-TR is a CMOS voltage detector IC with an adjustable delay time, manufactured by ROHM Semiconductor. It features a typical under-voltage detection voltage of 3.0V with ±1% precision. The reset active voltage range spans from 0.7V to 7V. The device utilizes an open-drain output type and includes an adjustable delay timer function. It operates within a temperature range of -40°C to 125°C. The circuit current is specified at 0.40μA (on) and 0.55μA (off) at Vdet=4.8V. The component is housed in a VSOF-5 package.

Feature Summary

• CMOS process technology for low power consumption
• Adjustable delay time setting via external capacitor
• High accuracy voltage detection with ±1% precision
• Open-drain output configuration

Applications

• Microprocessor reset circuits
• Battery voltage monitoring systems
• Portable electronic devices requiring low power supervision

Procurement Notes

Verify the obsolete status and last-time-buy availability through official ROHM channels or authorized distributors. Confirm the VSOF-5 package dimensions and pinout compatibility with your PCB layout. Ensure the adjustable delay timing requirements align with your external capacitor selection. Check for RoHS compliance documentation if required for your manufacturing standards.

Selection Notes

Select this component when a fixed threshold voltage of 3.0V is required with customizable reset delay. Consider the low standby current for battery-operated applications. Verify that the open-drain output suits your system's logic levels. Compare against similar series members if different detection voltages or package types are needed.

Part Context

This part belongs to ROHM's Low Voltage Free Delay Time Setting CMOS Voltage Detector IC Series. It is designed for high-precision monitoring in compact electronic systems. The series emphasizes low current consumption and flexible timing control. The BU4230FVE-TR variant specifically targets 3.0V detection thresholds.

Replacement Considerations

The BD5233G-1 is listed as a similar level replacement with the same pinout. Verify electrical parameter compatibility before substitution. Note that the BD5233G-1 has a typical detection voltage of 3.3V, which differs from the BU4230FVE-TR's 3.0V.