BU4247FVE-TR

Overview

The BU4247FVE-TR is a voltage detector IC manufactured by Rohm Semiconductor, designed for monitoring single-channel power supply voltages. It features an adjustable reset delay timer and operates with a typical under-voltage detection threshold of 4.7V. The device provides an open-drain output that activates at low voltage levels, ensuring reliable system resets during power fluctuations. It supports a reset active voltage range from 0.7V to 7V and maintains high precision with a Vdet accuracy of ±1%. The component is housed in a compact 5-pin VSOF package, suitable for surface-mount applications.

Feature Summary

• Adjustable reset delay timer allows customization of response timing relative to voltage thresholds.
• Open-drain output configuration ensures compatibility with various logic families and pull-up requirements.
• High detection precision guarantees accurate voltage monitoring within specified tolerance limits.

Applications

• Power supply supervision in embedded systems
• Microcontroller reset circuitry
• Battery-operated device voltage monitoring

Procurement Notes

Verify the specific suffix 'FVE' indicates the VSOF-5 package variant when sourcing replacements. Confirm RoHS compliance status as the product may be subject to end-of-life notices. Ensure the ordering part number matches the required tape-and-reel quantity specifications for manufacturing integration.

Selection Notes

Select this component when a precise 4.7V detection threshold is required for single-rail monitoring. The adjustable delay feature makes it suitable for applications needing controlled reset timing without external components. Consider the open-drain output for flexible interfacing with different logic voltage levels.

Part Context

This part belongs to the BU42xx series of voltage detectors from Rohm Semiconductor. It shares functional similarities with other models in the family but is distinguished by its specific 4.7V threshold and VSOF packaging. The series is designed for general-purpose power management in consumer and industrial electronics.

Replacement Considerations

BD5247G-1 is listed as a similar level replacement with the same pinout. Verify electrical parameter compatibility before substitution.

FAQ

What is the typical under-voltage detection voltage for the BU4247FVE-TR?

The typical under-voltage detection voltage (Vdet) is 4.7V.

Does the BU4247FVE-TR include a manual reset function?

No, the BU4247FVE-TR does not support manual reset functionality.