BD52E27G-MTR

Overview

The BD52E27G-MTR is a CMOS voltage detector IC from ROHM Semiconductor, designed for automotive applications. It features an adjustable delay time controlled by an external capacitor and provides a 2.7V typical detection threshold with ±1% precision. The device utilizes an N-channel open-drain output and operates within a reset active voltage range of 0.95V to 10V. It consumes ultra-low current (0.85µA) and supports AEC-Q100 standards in an SSOP-5 package.

Feature Summary

• Delay time is externally configurable via a connected capacitor
• High accuracy detection voltage with ±1% precision
• Ultra-low current consumption for power efficiency
• Automotive-grade reliability supporting functional safety analysis

Applications

• Microcontroller reset circuits requiring specific timing delays
• Logic circuit supervision in automotive accessories
• Power management systems needing under-voltage detection

Procurement Notes

Verify the component status as Not Recommended for New Designs before procurement. Confirm that the SSOP-5 package dimensions match your PCB footprint requirements. Ensure the external capacitor selection aligns with the desired delay specifications defined in the official datasheet. Validate AEC-Q100 compliance needs for your specific automotive application tier.

Selection Notes

Select this component when a fixed delay timer is insufficient and external capacitance adjustment is preferred. Compare against the BD52Exxx series for similar functionality. Consider the BD5250G-1 as a potential replacement if pinout compatibility is required, noting differences in hysteresis and current consumption. Evaluate the 2.7V threshold against system supply rails.

Part Context

This part belongs to the BD52Exxx-M series of free delay time setting CMOS voltage detectors. It shares the SSOP-5 package form factor with other devices in the family but offers distinct detection voltages. The series is characterized by copper wire bonding technology and compact packaging suitable for space-constrained automotive electronics.

Replacement Considerations

BD5250G-1 is listed as a replacement option with the same pinout and package, though it differs in electrical characteristics such as circuit current and operating temperature range.