BD5222G-2MTR

Overview

The BD5222G-2MTR is a CMOS reset IC featuring an adjustable delay timer controlled by an external capacitor. It provides a typical under-voltage detection threshold of 2.2V with ±2.5% precision and operates within a voltage range of 0.8V to 6V. The device delivers an N-channel open-drain output with low active state characteristics. It consumes 0.23µA in the ON state and 0.27µA in the OFF state, ensuring minimal power drain. Designed for automotive applications, it meets AEC-Q100 Grade 1 standards and functions reliably across a temperature range of -40°C to 105°C.

Feature Summary

• Adjustable reset delay time determined by an external capacitor connection
• High-precision voltage detection with ±2.5% accuracy at the 2.2V threshold
• Ultra-low current consumption suitable for battery-powered systems
• Automotive-grade reliability compliant with AEC-Q100 Grade 1 specifications

Applications

• Microprocessor system supervision in automotive electronics
• Voltage monitoring for battery-operated devices requiring low standby current
• Reset signal generation for embedded controllers during power-up or brown-out events

Procurement Notes

Verify the specific suffix '2M' corresponds to the 2.2V detection voltage and SSOP-5 package configuration. Confirm that the order includes the TR tape-and-reel packaging format as indicated by the model designation. Ensure compatibility with the required external capacitor values for the desired delay timing. Check for functional safety support documentation if the application requires FS analysis compliance.

Selection Notes

Select this component when a fixed internal delay is insufficient and external timing adjustment is required. Choose the BD5222G-2MTR over the BD5222G-1M variant specifically for its 2.2V detection threshold. Consider the open-drain output type for interfacing with various logic levels. Verify that the 0.23µA operating current meets the system's power budget constraints compared to higher consumption alternatives.

Part Context

This part belongs to ROHM's Nano Energy™ series of CMOS voltage detectors designed for automotive use. It complements the BD52xxG-M family by offering adjustable delay capabilities alongside high precision. The device shares the SSOP-5 footprint with other variants in the series, facilitating design flexibility while maintaining consistent performance characteristics across different detection voltages.

Replacement Considerations

The BD5222G-1M is listed as a similar alternative with identical pinout and adjustable delay features but differs in detection voltage. No direct drop-in replacements with identical electrical parameters are confirmed in public sources.