BD4937FVE-TR

Overview

The BD4937FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features a CMOS output type and operates within a reset active voltage range of 0.95 to 10 V. The device has an under-voltage detection voltage of 3.7 V with a precision of ±1%. It consumes 0.60 μA when ON and 0.85 μA when OFF at Vs=4.8V. The component supports a low output current of 0.4 mA and a high output current of 2 mA. It functions within a temperature range of -40°C to 105°C and is housed in a VSOF5 package measuring 1.6x1.6 mm with a thickness of 0.6 mm.

Feature Summary

• CMOS output interface for digital logic compatibility
• High detection precision of ±1% for accurate voltage monitoring
• Ultra-low power consumption suitable for battery-operated systems
• Compact VSOF5 package design for space-constrained applications

Applications

• Portable electronic devices requiring voltage supervision
• Battery-powered equipment needing under-voltage protection
• Embedded systems utilizing CMOS logic interfaces
• Consumer electronics with limited power budgets

Procurement Notes

Verify the specific ordering suffix and tape quantity against official distributor catalogs before procurement. Confirm RoHS compliance status and lead time requirements directly with authorized suppliers. Ensure the VSOF5 package dimensions match the target PCB footprint specifications. Check for any end-of-life notifications or last-time-buy statuses associated with this part number.

Selection Notes

Select this component when a precise 3.7 V threshold is required for system supervision. Consider the CMOS output drive capability and low quiescent current for efficiency. Evaluate the VSOF5 package size against available board space constraints. Compare performance metrics with alternative detectors if higher output current or different voltage ranges are needed.

Part Context

This part belongs to the BD49 series of standard voltage detectors from ROHM Semiconductor. It is designed for general-purpose power management applications where reliable voltage monitoring is essential. The series offers various detection voltages and package options to suit different design requirements.

Replacement Considerations

BD5237G-1 is listed as a recommended replacement with similar specifications.