LB11851MC-BH

Overview

The LB11851MC-BH is a brushless motor driver manufactured by onsemi. It functions as a microprocessor fan motor interface driver designed for controlling brushless DC motors. The component integrates the necessary logic and drive circuitry to manage motor commutation, providing a compact solution for cooling applications in electronic systems.

Feature Summary

• Integrated control logic for brushless DC motor commutation
• Designed specifically for microprocessor fan motor interfaces
• Simplifies system design by combining driver and controller functions

Applications

• Microprocessor cooling fans
• Computer system thermal management
• Electronic equipment ventilation

Procurement Notes

Verify the exact part number suffix against official onsemi documentation to ensure compatibility with specific voltage or package requirements. Confirm RoHS compliance status through the manufacturer's material declaration documents before integration into regulated assemblies.

Selection Notes

Select this component when a dedicated integrated solution for brushless fan control is required. It is suitable for designs prioritizing board space efficiency over discrete component flexibility. Ensure the application voltage range aligns with the driver's specifications found in the datasheet.

Part Context

This device belongs to onsemi's portfolio of motor control and driver ICs. It is part of the LB11851 series, which includes variants like the LB11851MC. These components are engineered for reliable operation in consumer and industrial electronics requiring precise fan speed and direction control.

Replacement Considerations

Check for pin-compatible alternatives within the same family, such as the LB11851MC, ensuring functional equivalence in commutation logic and operating voltage ranges before substitution.