BU4241F-TR

Overview

The BU4241F-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages. It features an open-drain output and operates within a reset active voltage range of 0.7 V to 7 V. The typical under-voltage detection threshold is set at 4.1 V with a precision of ±1%. The device supports adjustable delay timers and functions in low reset active states without manual reset or watchdog capabilities. It consumes 550 nA in the off state and operates across a temperature range of -40°C to +125°C.

Feature Summary

• Provides open-drain output for reliable voltage supervision
• Features adjustable delay timer functionality
• Operates with low power consumption suitable for battery applications

Applications

• Power supply monitoring in portable electronic devices
• Voltage supervision in industrial control systems
• Reset generation for microcontroller circuits

Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as indicated in official documentation. Check current supply status as this model may be subject to discontinuation or last-time-buy notices. Ensure ordering suffix matches required packaging specifications.

Selection Notes

Select based on required detection voltage accuracy and operating temperature range. Consider package compatibility with existing PCB layouts. Evaluate power consumption requirements against available alternatives. Verify interface compatibility with downstream logic circuits.

Part Context

This component belongs to ROHM's BU42 series of voltage detectors. It serves as a supervisory circuit for maintaining system stability during power fluctuations. The series offers various threshold options and package configurations for diverse application needs.

Replacement Considerations

BD5241G-1 is listed as a recommended replacement with similar specifications and SSOP5 packaging.