BD53E28G-MTR

Overview

The BD53E28G-MTR is a voltage detector with an adjustable delay timer, designed for automotive applications. It features a typical under-voltage detection threshold of 2.8V with ±1% precision. The reset active voltage range spans from 0.95V to 10V, utilizing a CMOS output type that activates in a low state. The circuit consumes 0.85µA in both on and off states at VDET=4.8V. Hysteresis is set at VDET x 0.05, with L output currents of 1.2mA (LowVol) and 5mA (HighVol). It operates within -40°C to 105°C, housed in an SSOP5 package.

Feature Summary

• Adjustable delay timer controlled by an external capacitor
• Automotive-grade functional safety support capability
• CMOS output with low-active reset state
• High-precision voltage detection with hysteresis

Applications

• Automotive electronic system monitoring
• Power supply supervision circuits
• Voltage threshold detection in vehicle modules

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm the component status as not recommended for new designs if applicable to current projects. Ensure compatibility with existing automotive functional safety requirements and verify RoHS compliance documentation matches the manufacturing batch specifications.

Selection Notes

Select this component when an adjustable delay function is required for voltage supervision in automotive environments. Consider the 2.8V detection threshold and CMOS output characteristics for interface compatibility. Evaluate the need for functional safety support and the ability to customize delay timing via external capacitance compared to fixed-delay alternatives.

Part Context

This part belongs to the BD53Exxx-G-M series of delay time variable voltage detectors manufactured by ROHM Semiconductor. These components are specifically engineered for automotive use, offering high precision and low power consumption. The series supports functional safety analysis, making it suitable for critical vehicle systems requiring reliable voltage monitoring with customizable response delays.

Replacement Considerations

BD53E26G-MTR offers a similar 2.6V detection threshold with adjustable delay. BD53E31G-MTR provides a 3.1V threshold option within the same family. Both are automotive-grade CMOS outputs with adjustable timers, maintaining pinout compatibility for potential design updates.