BD52W05G-CTR

Overview

The BD52W05G-CTR is a window voltage detector IC from ROHM Semiconductor, designed for monitoring supply voltages in automotive and industrial applications. It operates within an input voltage range of 1.6 V to 6 V and features a fixed overvoltage threshold of 3.63 V. The device provides an open-drain output and includes a reset delay time of 125 µs. It functions across an extended temperature range from -40 °C to +125 °C with high accuracy. Packaged in a compact 6-pin SSOP format, it supports reel and cut-tape configurations.

Feature Summary

• Window voltage detection capability with independent overvoltage threshold monitoring
• Free time delay setting allows flexible reset timing configuration
• Open-drain output interface compatible with various logic levels
• Automotive-grade reliability certified under AEC-Q100 standards

Applications

• Automotive electronic control unit (ECU) power supervision
• Industrial system voltage monitoring and protection
• Battery-powered device undervoltage/overvoltage detection
• Microcontroller reset circuit generation in harsh environments

Procurement Notes

Verify the specific suffix G-CTR corresponds to the 6-pin SSOP package with tape-and-reel shipping. Confirm AEC-Q100 qualification status if automotive compliance is required. Check datasheet revision dates for updated electrical characteristics. Ensure ordering quantities align with standard reel sizes or cut-tape availability. Validate pinout compatibility during PCB layout finalization.

Selection Notes

Select this component when precise window voltage monitoring is needed without manual reset functionality. Consider the 125 µs internal delay for noise immunity requirements. Evaluate the 3.63 V threshold against target supply rails. Assess thermal performance within the -40 °C to +125 °C operating range. Compare power consumption metrics against similar supervisors for efficiency optimization.

Part Context

Part of the BD52W series, which offers nano-energy consumption and free time delay settings. Designed for robust operation in demanding environments. Complements other ROHM supervisory circuits like the BD52E29G-MTR for comprehensive power management solutions.

Replacement Considerations

Direct substitutes include BD52W01G-CTR for different threshold requirements. Cross-reference pinouts and electrical specs before substitution. Verify package dimensions match existing footprints. Confirm functional equivalence in window detection mode.