BD46E335G-MTR

Overview

The BD46E335G-MTR is a fixed delay voltage detector manufactured by ROHM Semiconductor, designed for automotive applications. It features a threshold voltage of 3.3 V with ±1% precision and a fixed reset delay timer of 50 msec. The device utilizes a CMOS output type and supports manual reset functionality. It operates within a supply voltage range of 0.95 V to 10 V and consumes a circuit current of approximately 0.80 µA in the ON state and 0.85 µA in the OFF state at VDET=4.8 V. Hysteresis is set at VDET x 0.05. The component is housed in an SSOP-5 package and meets AEC-Q101 qualification standards.

Feature Summary

• High accuracy voltage detection with ±1% precision for reliable system monitoring.
• Fixed 50 msec reset delay timer ensures stable power-up sequencing.
• CMOS output type with manual reset capability for flexible control.
• Automotive-grade qualification (AEC-Q101) suitable for harsh environments.

Applications

• Automotive electronic systems requiring high-accuracy voltage supervision.
• Power management circuits needing fixed delay reset sequences.
• Microcontroller reset protection in automotive infotainment or body modules.

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the component status aligns with project requirements, as availability may be limited due to end-of-life considerations. Ensure compatibility with existing PCB footprints and reflow profiles specified for the SSOP-5 package.

Selection Notes

Select this component when a precise 3.3 V threshold with a fixed 50 msec delay is required. The CMOS output and manual reset feature distinguish it from open-drain alternatives. Consider the low standby current for battery-sensitive applications. Verify that the automotive qualification meets the target system's reliability standards.

Part Context

This part belongs to ROHM's series of voltage detectors optimized for automotive use. It provides under-voltage detection with high precision. The series includes variants with different thresholds and delay characteristics. The BD46E335G-MTR specifically targets applications needing a 3.3 V reference with a defined reset timing.

Replacement Considerations

BD46E335G-M is a similar pinout and package alternative. Verify functional equivalence regarding delay time and output type before substitution.