BU4347FVE-TR

Supervisors Overview

The BU4347FVE-TR is a voltage detector with an adjustable delay time, manufactured by ROHM Semiconductor. It features a typical under-voltage detection voltage of 4.7V with ±1% precision. The reset active voltage range spans from 0.7V to 7V, utilizing a CMOS output type. The device supports an adjustable delay timer and maintains a low reset active state. Circuit current consumption is specified at 0.40μA (ON) and 0.55μA (OFF) at VDET=4.8V. It operates within a temperature range of -40°C to 125°C and is housed in a VSOF5 package.

Supervisors Feature Summary

• Adjustable delay timer functionality for customized reset timing
• CMOS output type ensuring low power consumption
• Wide reset active voltage range supporting various supply levels

Supervisors Applications

• General purpose voltage monitoring in electronic circuits
• Microprocessor system reset generation
• Battery-powered device supervision

Supervisors Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the component meets RoHS compliance requirements for your region. Check the supply status as this part may be subject to last-time-buy notices or obsolescence. Ensure the adjustable delay circuit components match the design specifications.

Supervisors Selection Notes

Select this component when an adjustable reset delay is required alongside precise voltage monitoring. Compare the CMOS output drive capability against open-drain alternatives if interfacing with different logic families. Verify that the operating temperature range of -40°C to 125°C suits the environmental conditions of the target application.

Supervisors Part Context

This part belongs to the BU43xx series of voltage detectors from ROHM Semiconductor. It is designed for supervisory applications requiring precise threshold detection and configurable reset timing. The VSOF5 package offers a compact footprint suitable for space-constrained designs.

Supervisors Replacement Considerations

BD5247G-1 is listed as a similar level replacement with the same pinout. Verify compatibility regarding the open-drain output of the substitute versus the CMOS output of the original part.