BD48E45G-MTR

Overview

The BD48E45G-MTR is a high-accuracy voltage detector designed for automotive applications, manufactured by Rohm Semiconductor. It features a 4.5V threshold voltage with ±1% precision and an open-drain output type. The device operates within a supply voltage range of 0.95V to 10V and includes a reset delay timer of 100µs. It is housed in a compact SSOP-5 package (SC-74A/SOT-753) and supports surface-mount installation. The component is AEC-Q100 qualified and functions across a temperature range of -40°C to 105°C.

Feature Summary

• High accuracy voltage detection with ±1% precision for reliable monitoring
• Automotive-grade qualification ensuring stability in harsh environments
• Ultra-low current consumption for efficient power management
• Open-drain output configuration compatible with various logic levels

Applications

• Automotive electronic control unit (ECU) power supervision
• Battery voltage monitoring systems
• Microprocessor reset circuitry
• Portable device power management

Procurement Notes

Verify the specific suffix 'MTR' corresponds to the reel packaging format required for your assembly line. Confirm that the AEC-Q100 qualification meets your project's automotive reliability standards. Check the latest datasheet for any updates on RoHS compliance or material declarations. Ensure the SSOP-5 footprint matches your PCB design constraints before finalizing procurement.

Selection Notes

Select this component when precise voltage monitoring is critical for automotive safety systems. The open-drain output allows flexible interfacing with different microcontroller inputs. Consider the 100µs reset delay for timing-sensitive applications. Verify that the 4.5V threshold aligns with your system's under-voltage protection requirements. The wide operating voltage range provides robustness against supply fluctuations.

Part Context

This part belongs to the BD48Exx series of standard voltage detectors from Rohm Semiconductor. These devices are engineered for high reliability in automotive environments. The series offers various threshold voltages to suit different application needs. The BD48E45G-MTR specifically targets 4.5V monitoring scenarios. It represents a mature product line focused on accuracy and low power consumption.

Replacement Considerations

BD5245G-1TR is listed as a parameter-equivalent replacement with the same SSOP-5 package. BD5245G-2MTR is also noted as a parameter-equivalent option. Verify compatibility regarding reset delay timers and output characteristics before substitution.