BU4923FVE-TR

Supervisors Overview

The BU4923FVE-TR is a CMOS voltage detector from ROHM Semiconductor, featuring a fixed under-voltage detection threshold of 2.3V with ±1% accuracy. It operates within a supply voltage range of 0.7V to 7V and draws a typical quiescent current of 550nA at VDET=4.8V. The device provides a CMOS output type with a reset active state of Low. It includes hysteresis defined as VDET x 0.05 and supports an operating temperature range from -40°C to +125°C. Packaged in a VSOF-5 (1.6x1.6mm) surface-mount format.

Supervisors Feature Summary

• CMOS output architecture for direct logic interfacing
• High precision voltage detection with ±1% tolerance
• Ultra-low power consumption suitable for battery applications
• Integrated hysteresis to prevent output oscillation

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing reliable under-voltage monitoring
• Microcontroller reset circuits in consumer electronics

Supervisors Procurement Notes

Verify the specific suffix FVE indicates the VSOF-5 package configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations prior to integration. Ensure the component meets environmental specifications for the intended operating temperature range of -40°C to +125°C.

Supervisors Selection Notes

Select this component for designs requiring a fixed 2.3V threshold with CMOS output drive capabilities. It is suitable for space-constrained applications due to the compact VSOF-5 package. Consider alternatives if manual reset functionality or watchdog timers are required, as this device lacks those features.

Supervisors Part Context

This part belongs to the standard CMOS reset IC series by ROHM, designed for high-accuracy and low-current consumption. The lineup offers various detection voltages from 0.9V to 4.8V in 0.1V increments, allowing selection based on specific application voltage requirements while maintaining consistent performance characteristics across the family.

Supervisors Replacement Considerations

BD5223G-1 is listed as a similar specification replacement. Note that BD5223G-1 uses an Open Drain output and SSOP5 package, differing from the CMOS output and VSOF5 package of the BU4923FVE-TR.