BD4927FVE-TR

Overview

The BD4927FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features a CMOS output type with a low-active reset signal and operates within a supply voltage range of 0.95 V to 10 V. The device provides a typical under-voltage detection threshold of 2.7 V with a precision of ±1%. It includes a fixed reset delay timer of 100 µs and exhibits hysteresis defined as Vs multiplied by 0.05. The component supports an operating temperature range from -40°C to +105°C and is housed in a compact VSOF-5 package measuring 1.6 x 1.6 mm with a thickness of 0.6 mm.

Feature Summary

• CMOS output interface providing low-active reset signaling for digital system supervision
• Integrated 100 µs reset delay timer to ensure stable power-up sequencing
• Supply voltage dependent hysteresis mechanism to prevent output oscillation during threshold transitions
• Compact surface-mount packaging suitable for space-constrained electronic designs

Applications

• Portable equipment requiring reliable power supply monitoring
• Battery-operated devices needing under-voltage detection
• General-purpose supervisory circuits in consumer electronics

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary by region. Confirm RoHS compliance status through official documentation prior to integration. Check current lifecycle status, as this component may be subject to end-of-life restrictions or last-time-buy conditions depending on the manufacturing batch and distributor inventory.

Selection Notes

Select this component for applications requiring a fixed 2.7 V detection threshold with CMOS compatibility. Ensure the input voltage remains within the 0.95 V to 10 V operational range. Consider the ±1% accuracy and 100 µs delay for timing-sensitive designs. Verify that the VSOF-5 package dimensions fit the PCB layout constraints and thermal requirements of the target application environment.

Part Context

This part belongs to the BD49 series of standard voltage detectors from ROHM Semiconductor. It is functionally similar to the BD5227G-1 but differs in package type (VSOF-5 versus SSOP5) and output structure (CMOS versus open drain). The BD49 series is designed for general-purpose voltage supervision in portable and industrial electronics.

Replacement Considerations

BD5227G-1 is listed as having similar specifications but uses an SSOP5 package and open-drain output instead of CMOS.