BD49E29G-MTR

Overview

The BD49E29G-MTR is a high-accuracy voltage detector designed for automotive applications, manufactured by ROHM Semiconductor. It features a CMOS output type and monitors a single input with a threshold voltage of 2.9 V. The device operates within a supply voltage range up to 10 V and provides a reset delay time of 100 us. It is housed in an SSOP-5 package suitable for surface mount technology. The component supports an operating temperature range from -40 C to +105 C and holds AEC-Q101 qualification.

Feature Summary

• High accuracy voltage detection capability specifically engineered for automotive environments
• CMOS output interface providing digital reset signal generation
• AEC-Q101 qualified for reliability in automotive electronic systems

Applications

• Automotive power management system supervision
• Voltage monitoring for electronic control units
• System reset generation in automotive circuits

Procurement Notes

Verify the specific suffix MTR indicates reel packaging configuration when ordering. Confirm the exact threshold voltage matches the design requirement as variants exist within the series. Check current lifecycle status as this part may be restricted for new designs. Ensure compatibility with existing PCB footprint dimensions for SSOP-5 packages during procurement planning.

Selection Notes

Select this component when a precise 2.9 V detection threshold is required for automotive-grade applications. The CMOS output type suits logic interfaces requiring low standby current. Consider the 100 us reset delay for timing-sensitive circuit recovery needs. Verify that the SSOP-5 package fits the available board space constraints compared to alternative pinouts.

Part Context

This part belongs to the BD49ExxG-M series of high-accuracy voltage detectors. The series offers various threshold voltages tailored for automotive power supply monitoring. These components are characterized by their robust performance across wide temperature ranges and compliance with automotive quality standards.

Replacement Considerations

BD49E30G-MTR serves as a similar voltage detector with a 3.0 V threshold. BD48E24G-MTR offers a 2.4 V threshold but utilizes an open drain output instead of CMOS. Verify electrical parameter alignment before substitution.