Texas Instruments DRV2605EVM-CT Benutzerhandbuch
JP1
VDD
DRV2605
EN
IN/TRIG
GND
OUT+
OUT-
MSP430
PWM/
GPIO
P3.1
R8
EN
PWM
SDA
SCL
SDA
SCL
C11
AUDIO
R40, 0
Q
R41, NP
SDA SCL
R43, 0
Q
100k
470pF
100k
470pF
OUT
OUT-
OUT+
From DRV2605
Hardware Configuration
4.3
Using an External Actuator
Figure 17. Terminal Block and Test Points
The DRV2605EVM-CT can be used with an external actuator. Follow the instructions below to attach an
actuator to the "OUT" terminal block.
actuator to the "OUT" terminal block.
1. Remove jumpers JP3 and JP4, which disconnects the on-board actuators from the DRV2605.
2. Attach the positive and negative leads of the actuator to the green “OUT” terminal block keeping in
mind polarity.
3. Screw down the terminal block to secure the actuator leads.
NOTE:
It is important to use the green terminal block when connecting an external actuator. The
"OUT+" and "OUT–" test points have low-pass filters and should only be used for
oscilloscope and bench measurements.
oscilloscope and bench measurements.
4.4
PWM Input
Figure 18. External PWM Input
JP1
PWM Source
Shorted
MSP430
Open
External PWM using PWM test point
To control the DRV2605 using PWM follow the instructions below.
1. Enter
2. Select Mode 2 (00010'b) using the increment mode button ("+").
•
B1 - Disable amplifier
17
SLOU348B – January 2013 – Revised March 2014
DRV2605EVM-CT ERM and LRA Haptic Driver Evaluation Kit
Copyright © 2013–2014, Texas Instruments Incorporated