BD46E285G-MTR

Overview

The BD46E285G-MTR is a CMOS voltage detector IC designed for automotive applications, featuring a fixed threshold voltage of 2.8V with ±1% precision. It operates within a reset active voltage range of 0.95V to 10V and includes a manual reset function. The device utilizes an SSOP-5 package and supports surface-mount installation. Key electrical parameters include a maximum supply voltage of 10V, a reset delay timer of 50ms, and low current consumption of 0.80µA in the ON state at VDET=4.8V. It complies with AEC-Q100 standards and offers hysteresis voltage defined as VDET multiplied by 0.05.

Feature Summary

• High accuracy voltage detection with ±1% precision for reliable system monitoring
• Built-in counter timer providing a fixed reset delay without external capacitors
• Ultra-low current consumption suitable for power-sensitive automotive environments
• Manual reset capability allows for controlled system initialization

Applications

• Automotive electronic control unit power supervision
• Microcontroller reset circuit protection
• Battery backup system monitoring
• General purpose voltage supervisor in automotive grade designs

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance and AEC-Q100 qualification requirements match project specifications. Check for obsolescence notices and last-time-buy deadlines from ROHM Semiconductor before finalizing procurement plans.

Selection Notes

Select this component when a fixed 2.8V threshold with high precision is required for automotive systems. Consider the manual reset feature if system initialization control is necessary. Evaluate the SSOP-5 package size constraints against PCB layout requirements. Ensure compatibility with the 0.95V to 10V operating range of the target application.

Part Context

This part belongs to the BD46Exxxx-M series of counter timer built-in CMOS voltage detectors developed by ROHM Semiconductor. The series targets automotive applications requiring high accuracy and low power consumption. The BD46E285G-MTR specifically provides a 2.8V detection threshold with a fixed 50ms delay timer, distinguishing it from adjustable delay variants in the broader family.

Replacement Considerations

The BD5228G-1TR is listed as a similar level replacement with the same package type. Verify functional equivalence regarding output types and delay characteristics before substitution.