BD53E32G-MTR

Overview

The BD53E32G-MTR is a voltage detector IC from Rohm Semiconductor, designed for automotive applications and qualified under AEC-Q100 standards. It features a typical under-voltage detection threshold of 3.2V with ±1% precision. The device provides a low-active CMOS output and supports 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 0.85µA in both ON and OFF states at VDET=4.8V. Hysteresis is set at VDET x 0.05. The component is housed in a 5-SSOP package (SC-74A/SOT-753) and functions across a temperature range of -40°C to 105°C.

Feature Summary

• Adjustable reset delay timer controlled by an external capacitor
• High precision voltage detection with ±1% tolerance
• Automotive grade qualification compliant with AEC-Q100
• Low power consumption suitable for battery-backed systems

Applications

• Automotive electronic system monitoring
• Microcontroller reset circuits
• Battery-powered device supervision
• Functional safety support analysis

Procurement Notes

Verify the obsolete status carefully before procurement, as this part is not recommended for new designs. Confirm that existing inventory meets project requirements without future replenishment options. Check for minimum order quantity restrictions associated with remaining stock. Ensure compatibility with current board layouts given the SSOP5 package dimensions. Validate supply chain stability against potential discontinuation impacts.

Selection Notes

Select this component only for legacy system maintenance or replacement scenarios where the specific 3.2V threshold and adjustable delay characteristics are required. Consider alternative recommended parts if designing new hardware due to the non-recommended status. Evaluate the need for external capacitors for delay setting against board space constraints. Verify that the CMOS output drive capability meets downstream interface requirements.

Part Context

This component belongs to the BD53Exxx-M series of voltage detectors developed for automotive use. It is part of Rohm's portfolio aimed at supporting functional safety analysis. The series offers various detection voltages with high precision. This specific model represents a mature product line intended for established automotive applications rather than emerging technologies.

Replacement Considerations

BD5331G-2CGTR is listed as a parameter-equivalent substitute with the same pinout and package.