BD87B28FVM-CTR

Overview

The BD87B28FVM-CTR is an automotive-grade voltage detector IC featuring integrated reset and watchdog timer (WDT) functions. It monitors microcontroller input voltage and clock signals to enhance system redundancy with low current consumption, even at input voltages up to 20V. The device offers a typical under-voltage detection threshold of 2.8V with ±2.0% precision. It operates within a temperature range of -40°C to +125°C and utilizes an MSOP8 package.

Feature Summary

• Integrates under-voltage detection and watchdog timer for microcontroller supervision
• Supports adjustable reset delay and WDT monitoring times via external capacitors
• Maintains low static current across wide input voltage ranges
• AEC-Q100 qualified for functional safety support in automotive applications

Applications

• Automotive microcontroller power supply monitoring
• System reset generation for embedded controllers
• Watchdog timer implementation for fault detection

Procurement Notes

Verify the specific suffix and revision level against the manufacturer's latest datasheet to ensure compatibility with target design requirements. Confirm AEC-Q100 Grade 1 qualification status if strict automotive reliability standards apply. Check RoHS compliance documentation for environmental regulations. Ensure the MSOP8 package dimensions match the PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when designing automotive systems requiring combined voltage supervision and clock monitoring. The adjustable thresholds allow customization for specific microcontroller requirements. Consider the low quiescent current for battery-sensitive applications. Verify that the open-drain output configuration aligns with the logic levels of the connected microcontroller interface.

Part Context

This part belongs to Rohm Semiconductor's BD87BxxFVM-C series of voltage detectors designed specifically for automotive use. These devices are engineered to support functional safety analysis, providing reliable monitoring solutions for critical vehicle electronics. The series emphasizes high precision and low power consumption to meet stringent automotive industry standards.

Replacement Considerations

Consult official substitution lists for compatible variants within the BD87BxxFVM-C family. Verify pinout and electrical parameter compatibility before replacing existing components. Generic equivalents may not meet AEC-Q100 automotive qualifications or functional safety support requirements.