Texas Instruments DRV2605L, Руководство пользователя, Страница: 18 / 37

100k
470pF
100k
470pF
OUT
OUT- OUT+
From DRV2605L
U
S
B
V
B
A
T
MSP
DRV
USB
VBAT
USB
VBAT
Hardware Configuration
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Figure 16. Power Jumper Selection
Supply Configuration DRV MSP DRV2605L Supply Voltage
(1)
USB – both USB USB 5 V
DRV2605L external supply, MSP430
VBAT USB VBAT
USB
External Supply – both VBAT VBAT VBAT
USB with 3.3-V LDO
(2)
– Both USB USB 3.3 V (R4 = Short, R5 = Open)
(1)
The DRV2605L supply must be on before operating the MSP430.
(2)
If a 3.3-V DRV2605L supply voltage is preferred while using the USB as the power source, remove R5 and add a 0- Ω resistor
across R4.
4.3 Using an External Actuator
Figure 17. Terminal Block and Test Points
The DRV2605LEVM-CT can be used with an external actuator. Follow the instructions below to attach an
actuator to the "OUT" terminal block.
1. Remove jumpers JP3 and JP4, which disconnects the on-board actuators from the DRV2605L.
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.
18 DRV2605L ERM and LRA Haptic Driver Evaluation Kit SLOU389A – May 2014 – Revised June 2014
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