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4
Hardware Configuration
The DRV2604EVM-CT is very flexible and can be used to completely evaluate the DRV2604. The
following sections list the various hardware configurations.
4.1
Input and Output Overview
The DRV2604EVM-CT allows complete evaluation of the DRV2604 though test points, jacks, and
connectors.
Table 3
Signal
PWM
EN
OUT+/OUT–
OUT
USB
VBAT
SBW
2
I
C
Audio
Hardware configuration details can be found in the following sections.
4.2
Power Supply Selection
The DRV2604EVM-CT can be powered by USB or an external power supply (VBAT). Jumpers DRV and
MSP are used to select USB or VBAT for the DRV2604 and MSP430G2553, respectively. See the
following table for possible configurations.
Supply Configuration
USB – Both
DRV2604 external supply, MSP430
USB
External supply – both
(2)
USB with 3.3-V LDO
(1)
The DRV2604 supply must be on before operating the MSP430.
(2)
If a 3.3-V DRV2604 supply voltage is preferred while using the USB as the power source, remove R5 and add a 0-Ω resistor
across R4.
SLOU355 – March 2013
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gives a brief description of the hardware.
Table 3. Hardware Overview
Description
External input to DRV2604 IN/TRIG pin
External DRV2604 enable control
Filtered output test points for observation, connect to oscilloscope or
measurement equipment
Unfiltered output terminal block, connect to actuator
USB power (5 V)
External Supply Power (2.5 V–5.5 V)
MSP430 programming header
2
DRV2604 and MSP430 I
C bus
The audio jack is connected to the IN/TRIG pin of the DRV2604. When the
DRV2604 is in analog input mode, an analog signal from this jack controls the Input
amplitude envelope of the output waveform.
USB
MSP
VBAT
USB
DRV
VBAT
Figure 13. Power Jumper Selection
DRV
USB
VBAT
VBAT
– both
USB
Copyright © 2013, Texas Instruments Incorporated
MSP
DRV2604 Supply Voltage
USB
5 V
USB
VBAT
VBAT
VBAT
USB
3.3 V (R4 = Short, R5 = Open)
DRV2604 ERM, LRA Haptic Driver Evaluation Kit
Hardware Configuration
I/O
Input/Observe
Input/Observe
Output
Output
Input
Input
Input/Output
Input/Output
(1)
13
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