REFMOT003 - Reference Design

This reference design is a solution board for a three-phase brass-less sensor-equipped motor pre-driver developed to control automotive air conditioner blower motors and battery cooling fan motors. In addition to the pre-driver, the NchMOS of the output stage and peripheral components for external input setting are integrated on a single board, and the motor can be controlled simply by connecting the power supply (12V typ.) By using noise suppression and S/R adjustment, this product has passed the CISPR 25 Class 5 EMC standard. This product can be used as a reference design for circuit and pattern design when creating PCBs.

• Cleared EMC standard CISPR 25 Class 5 (in-house evaluation)
• 180°current flow (sinusoidal drive)
• Built-in automatic advance function
• Variable speed control function (supports both PWM and DC input)
• Dead time switching
• Various built-in protection functions (OVP, UVLO, OCL, OCP, LOCK, TSD, TXTSD, HALLERR)