Datasheet

www.ti.com

Introduction

2.5 Motor Outputs

Connect a three-phase 12-V BLDC motor to pins A, B, C, and COM of the header H2. Polarity is not

critical for A, B, and C. The motor outputs are located on H2 as shown in Figure 5.

Figure 5. DRV11873 Motor Outputs

2.6 Operation of the EVM

1. Connect a 12-V, three-phase BLDC motor to pins A, B, C, and COM of H2.

2. Adjust the Spd_Adj potentiometer (R6) to minimum voltage by turning it all the way clockwise. This will

minimize the motor speed.

3. Apply power to the H1 header.

4. Adjust the Spd_Adj potentiometer counter-clockwise towards the motor outputs to increase speed and

the motor will start to turn. Continue adjusting as desired.

5. To change direction, disconnect power and remove J4.

SLWU083A–February 2013–Revised April 2013 DRV11873 Evaluation Module

Submit Documentation Feedback