BD5231G-TR

Overview

The BD5231G-TR is a voltage detector IC from ROHM Semiconductor, designed for automotive applications with AEC-Q100 qualification. It features a fixed threshold voltage of 3.1 V and an adjustable reset delay timer. The device operates within a supply voltage range up to 7 V and consumes a typical operating current of 270 nA. It provides an open-drain output and is housed in a compact SSOP-5 package. The component supports a wide operating temperature range from -40°C to +105°C, ensuring reliability in demanding environments.

Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Adjustable reset delay timer functionality
• Ultra-low power consumption suitable for battery-backed systems
• Open-drain output configuration for flexible interfacing

Applications

• Microprocessor reset circuits in automotive ECUs
• Battery voltage monitoring in electric vehicles
• Power management supervision in industrial controllers
• Voltage detection for safety-critical system monitoring

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when ordering. Confirm the threshold voltage matches the required 3.1 V for your application. Ensure the SSOP-5 package footprint aligns with your PCB design. Check for RoHS compliance documentation if required by your manufacturing standards. Validate that the AEC-Q100 qualification meets your automotive quality requirements.

Selection Notes

Select this component when a fixed 3.1 V threshold is required for voltage supervision. Consider the adjustable delay feature if timing control for reset signals is necessary. The low quiescent current makes it suitable for energy-efficient designs. Verify compatibility with the target microcontroller's input requirements due to the open-drain output. Ensure the operating temperature range covers your environmental conditions.

Part Context

This part belongs to the BD52xx series of voltage detectors from ROHM. It is distinct from similar parts like BD5231G-2MTR which may have different delay characteristics or packaging options. The series is designed for robust performance in automotive and industrial applications. Understanding the specific suffixes helps in identifying exact electrical and mechanical specifications.

Replacement Considerations

BD5231G-2MTR is listed as a parameter-equivalent replacement. Verify pinout compatibility and electrical specifications before substitution. Other parts in the BD52xx family may offer different thresholds or features.