BD52E23G-MTR

Overview

The BD52E23G-MTR is a delay time variable voltage detector manufactured by Rohm Semiconductor, designed for automotive applications. It features an N-channel open drain output and supports under-voltage detection with a typical threshold of 2.3V. The device offers high precision with ±1% detection voltage accuracy and includes an adjustable reset delay timer controlled by an external capacitor. It operates within a reset active voltage range of 0.95V to 10V and consumes ultra-low current of 0.85µA at VDET=4.8V. The component is housed in a compact SSOP5 package and is qualified under AEC-Q100 standards.

Feature Summary

• Adjustable reset delay timer controlled by an external capacitor
• High-precision under-voltage detection with ±1% accuracy
• Ultra-low current consumption for energy-efficient operation
• Automotive-grade qualification ensuring functional safety support

Applications

• Microcontroller reset circuits requiring specific timing delays
• Logic circuit supervision in automotive accessories
• Battery voltage monitoring systems with adjustable response times

Procurement Notes

Verify the part status as Not Recommended for New Designs (NRND) before procurement. Confirm that the SSOP5 package and taping packaging format align with existing assembly lines. Ensure compatibility with the 2.3V detection threshold and open-drain output requirements for the target application. Check for available substitute models if long-term supply stability is required for production runs.

Selection Notes

Select this component when a precise 2.3V detection threshold with adjustable delay is necessary for automotive power management. The open-drain output suits interfaces requiring external pull-up resistors. Consider the ultra-low current consumption for battery-backed systems. Verify that the external capacitor selection allows for the desired delay time configuration within the specified operating temperature range.

Part Context

This component belongs to the BD52Exxx-M series of CMOS voltage detectors from Rohm Semiconductor. The series is characterized by its ability to set delay times via external capacitors, offering flexibility in system reset timing. It is distinct from the BD53Exxx series, which provides CMOS outputs instead of open-drain configurations. Both series share similar low-power characteristics and automotive qualifications.

Replacement Considerations

BD52E24G-TR: Same pinout and package but with a 2.4V detection threshold.

FAQ

How is the reset delay time determined?

The reset delay time is adjustable and determined by the value of an external capacitor connected to the device.

What is the output configuration of this voltage detector?

The BD52E23G-MTR features an N-channel open drain output type.