BU4233FVE-TR

Overview

The BU4233FVE-TR is a voltage detector IC from Rohm Semiconductor, designed for monitoring supply voltages with an adjustable delay timer. It features a typical under-voltage detection threshold of 3.3V with ±1% precision. The device operates within a reset active voltage range of 0.7V to 7V and utilizes an open-drain output type. Key electrical characteristics include a circuit current of 0.40μA (on) and 0.55μA (off) at Vdet=4.8V. It is housed in a VSOF5 package and supports RoHS compliance.

Feature Summary

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

Applications

• Portable equipment power management
• Battery-powered system supervision
• General-purpose voltage monitoring

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet to ensure compatibility with the intended application requirements. Confirm that the component meets all necessary regulatory standards for the target market. Check for any end-of-life notices or recommended replacement parts if long-term availability is a critical factor for the project lifecycle.

Selection Notes

Select this component when a precise 3.3V detection threshold with adjustable timing is required. Ensure the input voltage range aligns with the system's operational limits. Consider the open-drain output requirement for interfacing with downstream logic circuits. Verify that the low standby current meets the energy efficiency constraints of the design.

Part Context

This part belongs to the BU42xx series of voltage detectors manufactured by Rohm Semiconductor. These devices are commonly used in consumer electronics and industrial applications where reliable power supervision is essential. The VSOF5 package allows for compact surface-mount integration on printed circuit boards.

Replacement Considerations

BD5233G-1 is listed as a similar level replacement with the same pinout.