Texas Instruments DRV10964, Руководство пользователя

Страница: 6 / 15

User Interface
www.ti.com
6 SLAU675 – February 2016
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
DRV10964 Evaluation Module
The potentiometer adjusts the duty cycle of the PWM signal, which in turn adjusts the speed of the motor.
A lower duty cycle gives a lower speed and a higher duty cycle provides a higher speed. Turning the
potentiometer counterclockwise lowers the speed, and turning it clockwise increases the speed.
For more information on the PWM input required by the DRV10964, refer to the datasheet ( SLDS227 ).
5.3 Test Points
Test points are provided and labeled according to the inputs and outputs of the DRV10964 motor driver
(see
Table 5 ).
Table 5. Test Point Descriptions
Test Points Description Test Points Description
TP 1 PWMIN TP 5 Motor V phase
TP 2 GND TP 6 VCC
TP 3 CONFIG TP 7 FG
TP 4 Motor U phase TP 8 Motor W phase
CAUTION
Do not apply power to the board before you have read Section 6 !
6 Powering-Up the EVM
The DRV10964 EVM requires a VM power supply source, which has a recommended operating range
from 2.1 to 5.5 V. Use the following sequence to power-up the EVM:
1. Connect the power supply Ground to pin 1 (GND) and a voltage between 2.1 to 5.5 V to pin 2 of
connector P1 (VM). Set the current limit on the power supply to 1 A and make sure switch S1 is in the
OFF position.
2. Turn the POT-R5 fully CCW (counterclockwise). This keeps the speed PWM input to the minimum
value.
3. Connect the 3-phase terminal of the motor to connector J4 or U-V-W test points.
4. Power up the board by turning the power supply on.
5. Rotate the potentiometer to different positions to change the speed of motor.