BU4231G-TR

Overview

The BU4231G-TR is a CMOS voltage detector with an adjustable delay time, designed for power supply monitoring. It features an open-drain output and operates within a reset active voltage range of 0.7V to 7V. The typical under-voltage detection voltage is 3.1V with a precision of ±1%. Circuit current consumption is 0.40μA (ON) and 0.55μA (OFF) at VDET=4.8V. It utilizes an SSOP5 package and supports a temperature range from -40°C to 125°C.

Feature Summary

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

Applications

• Power supply supervision in electronic systems
• Microprocessor reset circuit generation
• Battery backup system monitoring

Procurement Notes

Verify the specific suffix 'G' indicates the SSOP5 package variant when sourcing. Confirm RoHS compliance status as indicated in official documentation. Check supply status carefully as this component may be designated as Not Recommended for New Designs (NRND). Ensure ordering part numbers match the required tape-and-reel quantity specifications.

Selection Notes

Select this component when an adjustable delay timer is required for reset signal timing. Compare against BD5231G-1 for potential pin-compatible alternatives with similar detection voltages. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the operating voltage range against the target application's supply rails.

Part Context

This part belongs to the BU42xx series of voltage detectors manufactured by ROHM Semiconductor. These devices are typically used for supervising power supplies in consumer electronics and industrial equipment. The series offers various detection voltages and package options to suit different design requirements.

Replacement Considerations

BD5231G-1 is listed as a recommended replacement with the same pinout and package.