BD45482G-TR

Overview

The BD45482G-TR is a voltage detector supervisory circuit manufactured by ROHM Semiconductor. It features a fixed threshold voltage of 4.8 V with an accuracy of ±1%. The device operates within a supply voltage range up to 10 V and provides an open-drain output. It includes manual reset functionality and has a fixed reset delay time of 200 ms. The component supports surface mount installation in an SSOP-5 package and functions across a temperature range of -40°C to +105°C.

Feature Summary

• Provides precise under-voltage detection with a fixed threshold voltage.
• Features manual reset capability for controlled system recovery.
• Delivers an open-drain output signal compatible with digital logic interfaces.

Applications

• Microprocessor reset circuits
• Battery-powered device supervision
• Portable equipment power monitoring

Procurement Notes

Verify the specific suffix G-TR against official datasheets to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status through current manufacturer documentation. Check for obsolescence notices as this part may be discontinued or subject to last-time buy restrictions. Ensure compatibility with existing PCB footprint designs utilizing the SSOP-5 package.

Selection Notes

Select this component when a fixed 4.8 V detection threshold is required for system supervision. Consider the manual reset feature if external control over the reset state is necessary. Verify that the open-drain output configuration aligns with the target microcontroller input requirements. Ensure the operating temperature range meets the environmental conditions of the intended application.

Part Context

This component belongs to the BD45 series of voltage detectors from ROHM Semiconductor. These devices are designed for low-power applications requiring reliable voltage monitoring. The series typically offers various threshold voltages to accommodate different supply rails. The BD45482G-TR specifically targets systems needing a 4.8 V detection point with manual reset capabilities.

Replacement Considerations

BD5248G-1TR is listed as a similar level replacement with the same package, though it features adjustable delay rather than fixed delay.