BD49E43G-MTR

Overview

The BD49E43G-MTR is a standard voltage detector IC from ROHM Semiconductor, designed for automotive applications with AEC-Q100 qualification. It features a typical under-voltage detection threshold of 4.3 V with ±1% precision. The device operates within a reset active voltage range of 0.95 V to 10 V and utilizes a CMOS output type with an active low state. Key electrical parameters include a circuit current of 0.60 µA (ON) and 0.85 µA (OFF) at Vs=4.8V, and an output current capability of 0.4 mA (Low) and 2 mA (High). It employs Cu wire bonding and functions across a temperature range of -40°C to 105°C.

Feature Summary

• High accuracy voltage detection with ±1% precision
• Ultra-low current consumption for power efficiency
• Automotive-grade reliability with AEC-Q100 certification
• CMOS output interface with active low reset state

Applications

• Automotive electronic system monitoring
• Processor supervisor circuits
• Voltage level detection in battery-powered systems

Procurement Notes

Verify the supply status carefully as this component is marked 'Not Recommended for New Designs' (NRND). Confirm that existing inventory or last-time buy options meet project requirements. Ensure compatibility with the SSOP5 package and tape-and-reel packaging specifications during procurement planning.

Selection Notes

Select this part only if the specific 4.3 V detection threshold and CMOS output characteristics align with the design needs. Consider the NRND status for long-term production viability. Evaluate alternative recommended parts if new design support is required, ensuring pinout and functional compatibility are maintained.

Part Context

This component belongs to the BD49xxx series of high-precision, low-current voltage detectors. It is specifically engineered for automotive environments, offering robust performance under varying thermal conditions. The series provides fixed detection voltages with incremental steps, catering to precise monitoring requirements in complex electronic architectures.

Replacement Considerations

BD5243G-1 is listed as a replacement option with the same package and similar detection voltage.