LB11861MC-AH

Overview

The LB11861MC-AH is a single-phase full-wave fan motor driver manufactured by onsemi. It integrates control and power stages for brushed DC motors, operating within a supply voltage range of 4.5V to 16V. The component features a 10-MFPSK surface-mount package and supports bidirectional operation. Designed for low-power applications, it exhibits a maximum power dissipation of 800 mW and operates reliably across an extended temperature range from -30°C to +85°C.

Feature Summary

• Integrates fully integrated control and power stages for simplified circuit design
• Supports bidirectional driving capability for versatile fan motor control
• Optimized for low standby current consumption in portable devices

Applications

• Desktop all-in-one computer cooling systems
• Portable electronic device thermal management
• Consumer appliance fan speed regulation

Procurement Notes

Verify the specific suffix AH against official onsemi documentation to confirm exact pinout and electrical characteristics. Confirm moisture sensitivity classification and reflow soldering profiles prior to assembly. Ensure the source document explicitly lists this part number as active or end-of-life status to manage long-term supply chain risks appropriately.

Selection Notes

Select this component when designing circuits requiring a compact solution for single-phase brushed DC fan control. The integrated architecture reduces external component count compared to discrete driver solutions. Verify that the required operating voltage falls within the specified 4.5V to 16V window and that the thermal requirements align with the 800 mW dissipation limit.

Part Context

This part belongs to the LB11861 series of motor drivers designed for low-power applications. It serves as a specialized solution for managing small fans in consumer electronics and industrial equipment. The MC variant indicates a specific surface-mount package configuration suitable for automated assembly processes in modern PCB manufacturing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.