BD52W02G-CTR

Overview

The BD52W02G-CTR is a Nano Energy™ dual-output window voltage detector IC designed for automotive applications. It utilizes CMOS technology to provide under-voltage detection at 1.35V and over-voltage detection at 1.65V with ±5% precision. The device features an adjustable reset delay timer controlled by an external capacitor, maintaining accuracy within ±50% across the -40°C to +125°C operating range. It offers Nch open-drain outputs, operates between 1.6V and 6V, and consumes only 0.3µA in standby. AEC-Q100 Grade 1 qualified.

Feature Summary

• Dual-output window voltage monitoring with flexible delay time setting via external capacitor
• Nano Energy™ low power consumption suitable for battery-backed systems
• Automotive-grade reliability with AEC-Q100 qualification and functional safety support

Applications

• Automotive engine control unit (ECU) power supply monitoring
• Airbag system voltage supervision
• Infotainment system reset signal generation

Procurement Notes

Verify the specific suffix 'CTR' indicates tape-and-reel packaging when ordering. Confirm that the dual-output configuration matches the required under-voltage and over-voltage thresholds for the target application. Ensure the external capacitor selection aligns with the desired delay time precision requirements specified in the official datasheet.

Selection Notes

Select this component when dual threshold monitoring is required within a single package. The adjustable delay feature allows customization for different system startup or shutdown timing needs. Verify that the open-drain output capability is compatible with the downstream logic levels of the microcontroller or processor being monitored.

Part Context

This part belongs to Rohm's Nano Energy™ series of CMOS reset ICs. It is specifically engineered for automotive environments, offering high precision and low current consumption. The series supports functional safety analysis, making it suitable for critical vehicle systems where voltage stability and reliable reset signals are mandatory.

Replacement Considerations

Check for direct substitutes within the BD52WxxG-CTR family with different fixed voltage thresholds if the 1.35V/1.65V combination does not match the design requirements. Ensure any replacement maintains AEC-Q100 Grade 1 qualification and SSOP-6 packaging compatibility.