BD4932FVE-TR

Overview

The BD4932FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, classified as a CMOS supervisory circuit. It features a typical under-voltage detection threshold of 3.2 V with a precision of ±1%. The device operates within a reset active voltage range of 0.7 to 7 V and utilizes a CMOS output type. Key electrical characteristics include a circuit current of 0.40 μA (at Vdet=4.8V) in the ON state and 0.55 μA in the OFF state. Hysteresis is defined as Vdet multiplied by 0.05. The component is housed in a VSOF-5 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• CMOS output architecture for low-power supervision
• Fixed 3.2 V detection threshold with high precision
• Wide operating voltage range supporting various system rails
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring battery voltage monitoring
• Embedded systems needing power-on reset signals
• Microcontroller supply voltage supervision
• General-purpose voltage level detection in consumer electronics

Procurement Notes

Verify end-of-life status before procurement, as this component may be discontinued or restricted to existing customer production. Confirm RoHS compliance and specific tape-and-reel packaging requirements. Ensure design-in compatibility with replacement parts if availability is limited. Check for any regional distribution restrictions or minimum order constraints imposed by authorized distributors.

Selection Notes

Select this part when a fixed 3.2 V threshold is required without manual reset or watchdog functionality. The CMOS output suits applications needing direct interface with digital logic. Consider the VSOF-5 package for small form factor constraints. Evaluate the low standby current for battery-operated systems. Verify that the 0.7 to 7 V reset active range covers the intended supply voltage variations.

Part Context

This component belongs to the BU4932/BD49 series of standard voltage detectors from ROHM Semiconductor. These devices are designed for simple, cost-effective voltage supervision in portable and industrial applications. The series typically offers low quiescent current and compact packages, targeting general-purpose power management needs where advanced features like adjustable delays are not required.

Replacement Considerations

BD5232G-1 is listed as a similar specification replacement with the same package type. Note differences in output type (open drain vs. CMOS) and reset delay capabilities. Verify pinout compatibility and electrical parameter alignment before substitution.