BD52W04G-CTR

Overview

The BD52W04G-CTR is a dual-output window voltage detector IC from ROHM's Nano Energy series, designed for automotive applications. It features adjustable reset delay timers via external capacitors and operates within a -40°C to +125°C temperature range. The device provides under-voltage detection at 2.25V typical and over-voltage detection at 2.75V typical, with a reset active voltage range of 1.6V to 6V. It utilizes an N-ch open-drain output type, consumes 0.3µA in the OFF state, and supports AEC-Q100 Grade 1 qualification.

Feature Summary

• Dual-output window voltage monitoring with flexible delay time settings
• Nano Energy technology enabling ultra-low power consumption
• Automotive-grade reliability with functional safety support

Applications

• Automotive electronic control unit (ECU) power supply monitoring
• Battery voltage supervision in electric vehicles
• System reset generation for microcontrollers

Procurement Notes

Verify the specific suffix 'CTR' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status as indicated in official documentation. Ensure the component meets AEC-Q100 Grade 1 requirements for your target automotive application. Cross-reference the exact part number against the manufacturer's current production status to avoid obsolete variants.

Selection Notes

Select this component when dual-channel voltage monitoring with independent delay timing is required. It is suitable for designs needing precise window detection without manual reset functionality. Consider its low standby current for battery-sensitive automotive systems. Verify that the external capacitor selection aligns with the desired delay precision across the operating temperature range.

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 power dissipation. The series supports functional safety analysis, making it appropriate for critical vehicle subsystems requiring robust voltage supervision and reliable system resets.

Replacement Considerations

Check for direct pin-compatible alternatives within the same family if supply constraints exist. Verify that any substitute maintains the dual-output configuration and adjustable delay feature. Ensure the replacement also holds AEC-Q100 Grade 1 qualification for automotive use.