Texas Instruments DRV2604LDGS, Руководство пользователя

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SCL
SDA
IN
EN
REG
OUTP
GND
OUTM
VDD
DRV2604L
M
LRA or
ERM
R
(pu)
R
(pu)
SCL
SDA
GPIO
PWM/GPIO
Application Processor
VIO VIO
C
(REG)
C
(VDD)
part pin labels
DRV2604LDGSEVM-DGSM
VREG
SCL
SDA
IN
EN
VBAT
OUTP
GND
OUTM
VBAT
DRV2604LDGSEVM-M -
1
2
3
4
5
6
7
8
9
10
Overview
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1 Overview
The DRV2604LDGSEVM-M is a breakout board that allows the user to have access to all of the pins on
the DRV2604L MSOP package type.
Figure 1 shows the pin out of the part.
NOTE: The pin out of the part does not correspond directly to the pin out of the headers. VREG is
replaced by VIO on the headers. All other header pins correspond to part pin out.
The board includes decoupling capacitors of 1 µF on the VBAT and VREG pins. The 50 mil pitched
headers and resistors R1 and R2 are not populated. Resistor pads R1 and R2 are included on the SCL
and SDA lines if I
2
C pull-up resistors are required. The voltage level must be applied to the VIO header
pin, and match the IO voltage of the host processor or microcontroller. To operate the DRV2604L, it must
be paired with a processor, microcontroller, MSP430 launchpad, or a DRV2604LEVM-CT.
Figure 1. Pin Out of the DRV2604LDGSEVM-M
2 Typical Application
The typical application for a haptic driver is in a touch-enabled system that already has an application
processor which makes the decision on when to execute haptic effects. The DRV2604L device can be
used fully with I
2
C communications (either using RTP or the memory interface). A system designer can
chose to use external triggers to play low-latency effects (such as from a physical button) or can decide to
use the PWM interface.
Figure 2 shows a typical haptic system implementation. The system designer
should not use the internal regulator (REG) to power any external load. The gray dashed box represents
the components that are already integrated on to the DRV2604LDGSEVM-M.
NOTE: The pull-up resistors R1 and R2 are not populated but can be added to the
DRV2604LDGSEVM-M if there are no other pull-up resistors on the I2C bus lines in the
system.
Figure 2. I
2
C Control with Optional PWM Input or External Trigger
2 DRV2604LDGS Haptic Driver Mini Board SLOU397 – August 2014
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