BD4952FVE-TR

Overview

The BD4952FVE-TR is a standard CMOS voltage detector IC from ROHM Semiconductor, designed for precise power supply monitoring. It features a detection threshold of 5.2V with high accuracy of ±1%. The device operates within a reset active voltage range of 0.95V to 10V and consumes ultra-low current (0.60μA ON, 0.85μA OFF at Vs=4.8V). It includes a 5% hysteresis voltage relative to supply and offers a low-active output without manual reset or watchdog functions. Operating temperature spans -40°C to +105°C in a VSOF5 package.

Feature Summary

• High precision detection voltage with ±1% accuracy
• Ultra-low current consumption for extended battery life
• CMOS output type with low-active reset state
• Compact surface-mount packaging for space-constrained designs

Applications

• Microcontroller power supply supervision
• Logic circuit voltage monitoring
• Battery backup system detection
• Embedded system reset control

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and package integrity upon receipt. Cross-reference datasheet revisions for any parameter updates. Ensure storage conditions maintain moisture sensitivity level requirements. Validate supplier documentation against official ROHM specifications before integration.

Selection Notes

Select this component when precise 5.2V threshold detection is required with minimal quiescent current. The CMOS output suits direct logic interfacing without additional pull-up resistors. Consider the VSOF5 package for compact PCB layouts. Evaluate thermal performance within the specified operating range. Compare against similar series parts if alternative thresholds are needed.

Part Context

Part of the BD49xxx series, which provides highly accurate, low-current voltage detectors. The series supports detection voltages from 2.3V to 6.0V in 0.1V increments. This specific model utilizes CMOS output technology, distinguishing it from open-drain variants in the broader family. Designed for general-purpose electronic devices requiring reliable power management.

Replacement Considerations

BD5250G-1 is listed as a recommended replacement with similar specifications. Note differences in package type (SSOP5 vs VSOF5) and output configuration (open drain vs CMOS). Verify pin compatibility and electrical parameters before substitution. Check supply status and availability constraints for both components.