BU4336FVE-TR

Overview

The BU4336FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features an adjustable reset delay timer and operates within a maximum supply voltage of 7 V. The device detects under-voltage conditions with a typical threshold of 3.6 V and maintains high accuracy of ±1%. It functions reliably across an extended temperature range from -40°C to +125°C while consuming a low static current of 550 nA. The component is housed in a compact VSOF-5 surface-mount package.

Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated applications
• Adjustable reset delay timer allows customization of response timing via external components
• High detection accuracy of ±1% ensures reliable voltage supervision
• Extended industrial temperature rating supports operation in harsh environments

Applications

• Portable electronic devices requiring low standby current
• Industrial control systems needing wide temperature tolerance
• Consumer electronics utilizing single-supply voltage monitoring

Procurement Notes

Verify the obsolete status and last-time-buy availability before finalizing procurement plans. Confirm that the VSOF-5 package dimensions match your PCB footprint requirements. Ensure compatibility with existing design specifications regarding the 3.6 V threshold and CMOS output characteristics. Review official datasheets for any specific handling or storage constraints associated with end-of-life components.

Selection Notes

Select this component when a low-power, single-channel voltage monitor with adjustable delay is required. The CMOS output type suits digital logic interfaces directly. Consider the 7 V maximum operating voltage limit against your system's peak supply levels. The adjustable delay feature provides flexibility for filtering noise during power-up sequences without requiring additional external circuitry.

Part Context

This part belongs to the BU42(43)xxFVE series of supervisory circuits from ROHM Semiconductor. It is specifically engineered as a low-voltage detector with programmable timing capabilities. The series emphasizes energy efficiency and precision for modern embedded systems. The TR suffix indicates tape-and-reel packaging for automated assembly processes.

Replacement Considerations

BD5236G-1TR is listed as a recommended replacement with similar pinout and detection voltage.