BD5242FVE-TR

Overview

The BD5242FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features an open-drain output and operates within a supply voltage range of 1.2 V to 10 V. The device provides a typical under-voltage detection threshold of 4.2 V with a precision of ±1%. It includes an adjustable reset delay timer and functions without manual reset or watchdog capabilities. The component is housed in a VSOF-5 surface-mount package and supports operation across a temperature range of -40°C to +105°C.

Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated applications
• Adjustable reset delay timer allows customization of response timing via external components
• Open-drain output interface facilitates flexible logic level interfacing

Applications

• Portable electronic devices requiring precise power supply monitoring
• Battery-powered systems needing reliable under-voltage detection
• Industrial control circuits utilizing supervisory voltage monitoring

Procurement Notes

Verify the specific suffix FVE against official ROHM documentation to confirm package type and electrical characteristics. Confirm availability status as this part may be subject to discontinuation or last-time-buy notices. Ensure compatibility with existing PCB footprints for the VSOF-5 package before procurement.

Selection Notes

Select this component when a fixed 4.2 V threshold with adjustable delay is required. Compare against the BD5242G series for alternative packaging options such as SSOP-5 if pinout compatibility allows. Verify that the open-drain output configuration meets the system's input requirements without additional pull-up resistors.

Part Context

This device belongs to the BD52xxxFVE series of voltage detectors from ROHM Semiconductor. It shares functional similarities with other parts in the family but is distinguished by its specific 4.2 V threshold and VSOF-5 packaging. It serves as a supervisory circuit for maintaining system stability during power fluctuations.

Replacement Considerations

The BD5242G-1 is listed as a similar level replacement with the same pinout and package. Verify electrical parameter alignment, particularly the reset delay adjustability and output drive capability, before substituting.