LB11861MC-W-AH

Overview

The onsemi LB11861MC-W-AH is a fully integrated bipolar motor driver designed for brushless DC (BLDC) fan applications. It operates within an operating supply voltage range of 4.5 V to 16 V and features a 10-MFPSK package. The device integrates control logic and power stages, offering a power dissipation rating of 800 mW. It is classified under Motor / Motion / Ignition Controllers & Drivers and supports moisture-sensitive handling protocols.

Feature Summary

• Fully integrated control and power stage design for simplified implementation
• Optimized specifically for brushless DC fan motor applications
• Supports bipolar motor configurations with single-phase full-wave drive capability

Applications

• Brushless DC fan motor control systems
• Single-phase full-wave fan driver circuits
• Bipolar motor driver implementations in consumer electronics

Procurement Notes

Verify the exact suffix designation during procurement, as variations such as LB11861JA-AH or LB11861MC-AH exist within the same family. Confirm moisture sensitivity level requirements for storage and reflow processes. Ensure the specific package type matches the PCB footprint, as multiple packaging options like Reel or Cut Tape may be available depending on the distributor. Cross-reference the manufacturer part number with official datasheets to confirm functional equivalence before ordering.

Selection Notes

Select this component when a compact, fully integrated solution for BLDC fan motors is required. The 4.5 V to 16 V input range provides flexibility for various low-voltage systems. Consider the 800 mW power dissipation limit for thermal management planning. Verify that the 10-MFPSK package fits the assembly constraints. This part is suitable for applications prioritizing integration over discrete component count.

Part Context

This component belongs to the LB11861 series from onsemi, which focuses on motor drivers for cooling fans. The series includes variants like LB11861JA and LB11861MC, differing primarily in packaging or minor electrical characteristics. The LB11861MC-W-AH specifically denotes the MC variant with W-AH suffixing, indicating specific tape-and-reel or moisture-barrier packaging attributes defined by the manufacturer.

FAQ

What type of motor does the LB11861MC-W-AH support?

It is designed for Brushless DC (BLDC) motors and supports bipolar configurations.

Is the LB11861MC-W-AH a discrete driver or integrated?

It is a fully integrated driver containing both control logic and power stages.