BD49E40G-MTR

Overview

The BD49E40G-MTR is a high-accuracy voltage detector manufactured by ROHM Semiconductor, designed for automotive applications. It features a CMOS output type and monitors a single input with a threshold voltage of 4.0 V. The device operates within a supply voltage range of 0.95 V to 10 V and offers an accuracy of ±1%. It includes a reset delay time of 100 us and consumes ultra-low current, with circuit current at 0.60 µA (ON) and 0.85 µA (OFF) at Vs=4.8V. The component is housed in an SSOP-5 package, supports AEC-Q100 qualification, and functions within a temperature range of -40°C to +105°C.

Feature Summary

• High accuracy detection with ±1% precision
• Ultra-low current consumption for power efficiency
• Automotive-grade reliability with AEC-Q100 qualification

Applications

• Automotive electronic system monitoring
• Under-voltage detection in vehicle circuits
• Power management supervision in automotive ICs

Procurement Notes

Verify the specific suffix MTR for reel packaging configuration against official ROHM documentation. Confirm AEC-Q100 compliance status for your application requirements. Check for NRND (Not Recommended for New Design) status implications if applicable to new projects. Ensure the SSOP-5 package dimensions match your PCB layout constraints. Validate operating temperature range suitability for your environmental conditions.

Selection Notes

Select this component when a precise 4.0 V threshold is required for automotive voltage supervision. Consider its ultra-low current consumption for battery-sensitive applications. The CMOS output and single-input design simplify integration into existing power management architectures. Verify that the 100 us reset delay meets system timing requirements. Ensure the SSOP-5 package fits within available board space.

Part Context

The BD49E40G-MTR belongs to the BD49ExxG-M series of voltage detectors from ROHM Semiconductor. This series is characterized by high accuracy and low power consumption, specifically tailored for automotive use. The part shares common features like CMOS output and SSOP-5 packaging with other variants in the family, differing primarily in threshold voltage settings.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.