BD5227G-2MTR

Overview

The BD5227G-2MTR is a voltage detector IC from ROHM Semiconductor, designed for automotive applications. It features an adjustable reset delay timer controlled by an external capacitor and operates within a supply voltage range of 0.8 V to 6 V. The typical under-voltage detection threshold is 2.7 V with a precision of ±2.5%. Key electrical parameters include a maximum operating temperature of +105°C, a minimum of -40°C, and a circuit current of 0.23 µA in the ON state. The device utilizes an open-drain output type and is housed in an SSOP-5 package.

Feature Summary

• Adjustable reset delay timer functionality determined by external capacitor connection
• Automotive-grade qualification compliant with AEC-Q100 standards
• Ultra-low power consumption characteristics suitable for battery-backed systems

Applications

• Automotive electronic control unit monitoring
• Battery voltage supervision in electric vehicles
• Microprocessor reset signal generation in harsh environments

Procurement Notes

Verify that the specific part number matches the required detection voltage and package configuration. Confirm that the supplier provides valid traceability documentation for automotive-grade components. Ensure that the ordering suffix corresponds to the correct tape and reel quantity specifications as defined by the manufacturer's standard packaging guidelines.

Selection Notes

Select this component when an adjustable delay time is required rather than a fixed internal delay. Consider the external capacitor tolerance as it directly impacts the reset timing accuracy. Evaluate the open-drain output capability against the system's pull-up requirements. Compare the 2.7V threshold against other variants in the series if different voltage levels are needed.

Part Context

This component belongs to the Nano Energy™ series of CMOS reset ICs developed by ROHM Semiconductor. The series offers various detection voltages ranging from 0.9 V to 5.0 V in 0.1 V steps. It shares the same SSOP-5 package and adjustable delay architecture with other members like the BD5224G-2MTR and BD5229G-2MTR, differing primarily in the specific under-voltage detection threshold.

Replacement Considerations

The BD4727G is listed as a replacement product with similar package dimensions and detection voltage. However, the BD4727G lacks the adjustable delay timer feature and has different electrical characteristics such as higher circuit current and different hysteresis values. Verify functional compatibility before substitution.