Texas Instruments DRV2624EVM-CT, User Manual, Page: 10 / 26

Hardware Configuration
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10 SLOU435B – December 2015 – Revised February 2019
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DRV2624 ERM, LRA haptic driver evaluation kit
4 Hardware Configuration
The DRV2624EVM-CT is very flexible and can be used to completely evaluate the DRV2624. The
following sections list the various hardware configurations.
4.1 Input and Output Overview
The DRV2624EVM-CT allows complete evaluation of the DRV2624 though test points, jacks, and
connectors.
Table 2 gives a brief description of the hardware.
Table 2. Hardware Overview
Signal Description I/O
DRV TRIG External input or monitor to DRV2624 IN/TRIG pin Input/Output
NRST External DRV2624 shutdown control Input
OUT+/OUT–
Filtered output test points for observation, connect to oscilloscope or
measurement equipment
Output
USB USB power (5 V) Input
VBAT External Supply Power (2.5 V – 5.5 V) Input
SBW MSP430 programming header Input/Output
I
2
C DRV2624 and MSP430 I
2
C bus Input/Output
Hardware configuration details can be found in the following sections.
4.2 Power Supply Selection
The DRV2624EVM-CT can be powered by USB and an external power supply (VBAT). Jumpers J3 is
used to select USB or VBAT for the DRV2624 and MSP430G2553, respectively. See
Table 3 for possible
configurations.
(1)
The DRV2624 supply must be on before operating the MSP430.
Table 3. Power Supply Configurations
Supply Configuration DRV MSP DRV2624 Supply Voltage
(1)
USB – Both USB USB 5 V
DRV2624 external supply, MSP430
USB
VBAT USB VBAT
4.3 Using an External Actuator
The DRV2624EVM-CT can be used with an external actuator. Follow the instructions below to attach an
actuator to the
OUT terminal block.
1. Remove jumpers J8 and J9 to disconnect the on-board actuators from the DRV2624.
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.
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.