BU4941FVE-TR

Supervisors Overview

The BU4941FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It operates within a supply voltage range of up to 7 V and features a detection threshold of 4.1 V with an over-voltage threshold of 4.141 V. The device offers high accuracy of 1% and consumes a typical static current of 500 nA. It is housed in a compact VSOF-5 surface-mount package and supports an adjustable reset delay timer. The component functions reliably across an extended industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• CMOS output structure providing low power consumption and direct interface compatibility with digital logic circuits.
• Adjustable reset delay timer allows customization of the output response time relative to voltage recovery.
• High detection accuracy ensures precise monitoring of supply voltage levels against defined thresholds.

Supervisors Applications

• Monitoring microprocessor and microcontroller power supplies for under-voltage conditions.
• Providing reset signals for memory devices and programmable logic controllers.
• Ensuring system stability in portable electronic equipment through low standby current operation.

Supervisors Procurement Notes

Verify the specific suffix FVE to confirm the VSOF-5 package type and tape-and-reel delivery format. Confirm that the adjustable reset delay configuration matches the target application requirements before integration. Check for end-of-life status as distribution availability may be limited.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with adjustable timing is required. The CMOS output is suitable for low-voltage digital systems. Ensure the 4.1 V threshold aligns with the monitored rail. Consider the VSOF-5 footprint constraints during PCB layout design.

Supervisors Part Context

This part belongs to the BU49xx series of standard voltage detectors from ROHM. These ICs are engineered for general-purpose supervisory applications requiring high precision and low quiescent current. The series supports various threshold voltages to accommodate different logic families and power rails.

Supervisors Replacement Considerations

BD5241G-1TR