BD48E45G-TR

Overview

The BD48E45G-TR is a high-accuracy voltage detector IC from Rohm Semiconductor, designed for automotive applications. It features a threshold voltage of 4.5V and operates within a supply voltage range up to 10V. The device utilizes an open-drain output type with a low-active reset signal. It includes a reset delay time of 100 us and lacks manual reset, watchdog timer, or battery backup switch functions. Packaged in a 5-SSOP (SC-74A) surface-mount format, it supports an operating temperature range from -40°C to 105°C.

Feature Summary

• High accuracy voltage detection suitable for automotive environments
• Open-drain output configuration with low-active reset state
• Compact 5-SSOP surface-mount package design

Applications

• Microcontroller power supply monitoring
• CPU voltage supervision
• DSP system reset generation

Procurement Notes

Verify the specific suffix requirements when sourcing replacements, as packaging variations exist between TR and MTR designations. Confirm that the component status remains acceptable for current production cycles despite being marked not recommended for new designs. Ensure compatibility with existing PCB footprints and thermal management strategies during integration.

Selection Notes

Select this component when a fixed 4.5V threshold is required for single-channel monitoring. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the 100us reset delay against system startup timing requirements. Verify that the SSOP-5 package fits within the available board space constraints.

Part Context

This part belongs to the BD48Exx series of standard voltage detectors manufactured by Rohm Semiconductor. It is engineered to provide reliable supervision for digital circuits requiring precise voltage monitoring. The series emphasizes compactness and accuracy for embedded control systems.

Replacement Considerations

BD48E45G-MTR serves as a parameter-equivalent alternative with identical electrical characteristics but different packaging specifications.