BU4216FVE-TR

Overview

The BU4216FVE-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It operates within a supply voltage range of 0.7 V to 7 V and features an adjustable reset delay timer. The device utilizes a VSOF-5 package and offers open-drain output with a low active state. It maintains a detection accuracy of ±1% and includes hysteresis voltage defined as VDET multiplied by 0.05. The circuit current varies between 0.40 μA and 0.55 μA depending on the detection voltage level.

Feature Summary

• Adjustable reset delay timer functionality
• Open-drain output configuration
• High detection accuracy with specified hysteresis

Applications

• Portable equipment power management
• Microprocessor system supervision
• Battery-powered device monitoring

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and pin alignment against VSOF-5 specifications. Review datasheet revisions for any parameter updates prior to integration. Ensure compatibility with existing board layouts and thermal requirements.

Selection Notes

Select this component when adjustable delay timing is required for stable system resets. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the low operating current for battery-sensitive applications. Verify that the 0.7 V to 7 V input range matches the target supply voltage profile.

Part Context

This part belongs to the BU42xxFVE series of voltage detectors. It shares functional similarities with other members like BU4219FVE-TR but differs in threshold voltage settings. The VSOF-5 package provides a compact footprint suitable for space-constrained designs. It serves as a supervisory circuit for ensuring reliable operation in electronic systems.

Replacement Considerations

BD5216G-1 is listed as a same-pinout replacement option. Verify package differences, as BD5216G-1 uses SSOP5 instead of VSOF-5. Check electrical parameter compatibility before substitution.