BD49E42G-MTR

Overview

The BD49E42G-MTR is a standard voltage detector developed for automotive applications, classified as FS supportive. It features a typical detection voltage of 4.2 V with ±1% precision and a reset active range of 0.95 to 10 V. The device utilizes CMOS output with a low active state and no manual reset or watchdog timer. Operating current is 0.60 µA (ON) and 0.85 µA (OFF) at Vs=4.8V. Hysteresis is Vs x 0.05. Output currents are 0.4 mA (Low) and 2 mA (High). It operates from -40°C to 105°C in an SSOP5 package.

Feature Summary

• High accuracy detection capability
• Ultra-low current consumption design

Applications

• Automotive functional safety analysis support
• Voltage monitoring in automotive electronic systems

Procurement Notes

Verify the component status carefully before procurement, as this part is designated for existing customers only and is not recommended for new designs. Confirm that the SSOP5 package and taping packaging format align with your manufacturing requirements. Ensure compatibility with AEC-Q100 standards if required by your specific application environment. Check for any end-of-life notifications or obsolescence warnings associated with this specific revision.

Selection Notes

Select this component when a fixed 4.2 V threshold with high precision is required for automotive voltage supervision. The CMOS output and low power consumption make it suitable for battery-backed or energy-sensitive circuits. Consider the absence of a reset delay timer and manual reset feature during system architecture planning. Verify that the operating temperature range meets the environmental conditions of the target installation site.

Part Context

This component belongs to the BD49ExxG-M series of standard voltage detectors manufactured by ROHM Semiconductor. It is designed specifically for automotive use, supporting functional safety analysis. The series includes various detection voltages, all sharing similar low-power characteristics and automotive-grade reliability standards.

Replacement Considerations

BD49E43G-MTR

FAQ

Is the BD49E42G-MTR recommended for new designs?

No, it is not recommended for new designs and is produced to support existing customers.

Does the BD49E42G-MTR include a watchdog timer?

No, the device does not include a watchdog timer function.