BD4925G-TR

Overview

The BD4925G-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for microprocessor power supply monitoring and reset circuitry. It features a typical threshold voltage of 2.5 V with ±1% precision. The device operates within a supply voltage range of 0.95 V to 10 V and provides an active-low reset output. It supports a manual reset function and includes a reset delay timer. The component is housed in an SSOP-5 package and is rated for an operating temperature range of -40 °C to +105 °C.

Feature Summary

• CMOS voltage detection with high accuracy
• Active-low open-drain reset output
• Manual reset capability

Applications

• Microprocessor power supply monitoring
• Portable battery-powered equipment
• Multi-output power supplies

Procurement Notes

Verify the specific datasheet version and ordering information directly with ROHM Semiconductor or authorized distributors. Confirm that the SSOP-5 package and 2.5 V threshold match the design requirements. Check for any recent lifecycle status updates, as this part may be subject to change or obsolescence notices.

Selection Notes

Select this component when a precise 2.5 V under-voltage detection threshold is required for low-power applications. Ensure the system voltage stays within the 0.95 V to 10 V operating range. Consider the manual reset feature if external reset control is needed. Verify compatibility with the target microprocessor's reset input specifications.

Part Context

This part belongs to the BD49xx series of standard voltage detectors. It is a successor or alternative to older models like the BU4925G, offering similar functionality in a modern surface-mount package. The series is known for low current consumption and high accuracy, suitable for portable and battery-operated devices.

Replacement Considerations

BD5225G-1TR is listed as a similar specification replacement with comparable voltage detection characteristics.