Texas Instruments DRV8832 Evaluation Module DRV8832EVM DRV8832EVM Datenbogen
Produktcode
DRV8832EVM
Connectors
3
Connectors
3.1
Control (J3)
The control connections to the DRV8830 or DRV8832 are made through the header J3. Connections are
clearly labeled on the PCB.
clearly labeled on the PCB.
Note that pins 1, 2, 3 and 4 have different meanings depending on whether a DRV8830 or DRV8832
device is mounted to the board. If using a DRV8830 with I
device is mounted to the board. If using a DRV8830 with I
2
C interface, pin 1 is SCL (serial clock) and pin 2
is SDA (serial data); if using a DRV8832, pin 2 is IN1 and pin 1 is IN2.
Note that depending on the location of jumpers JP1, JP2 and JP4, the control pins, can either be routed
from the J3 header to the device, or be generated from the on-board switches and voltage set trimpot.
Refer to the schematic and the jumper descriptions below.
from the J3 header to the device, or be generated from the on-board switches and voltage set trimpot.
Refer to the schematic and the jumper descriptions below.
3.2
Motor Output (J2)
The motor is connected to the module through header J2, labeled OUT1 and OUT2. The polarity will affect
the direction that the motor turns
the direction that the motor turns
–
refer to the datasheet for details.
3.3
Power Connector (J1)
Power is applied to the module through header J1, labeled VCC and GND. Apply a voltage between
2.75 V and 6 V to this connector. Be sure to observe the correct polarity (VCC is positive, GND is
negative).
2.75 V and 6 V to this connector. Be sure to observe the correct polarity (VCC is positive, GND is
negative).
4
Jumpers and Controls
4.1
DRV8830 EVM Jumpers and Controls
4.1.1
JP4 and JP5
–
I
2
C Slave Address Select
JP4 and JP5 are used to select the base I
2
C address of the DRV8830. There are three possible states for
each of the jumpers: installing a jumper between pins 2 and 3 sets the corresponding input pin to 0,
placing a jumper between pins 1 and 2 sets the pin to 1, and leaving the jumper off sets the pin to Z
(open). The resulting base address is set as follows:
placing a jumper between pins 1 and 2 sets the pin to 1, and leaving the jumper off sets the pin to Z
(open). The resulting base address is set as follows:
Table 1. I
2
C Slave Address Select
ADDRESS
ADDRESS
JP2
JP3
(WRITE)
(READ)
pin 2-3
pin 2-3
0xC0h
0xC1h
pin 2-3
open
0xC2h
0xC3h
pin 2-3
pin 1-2
0xC4h
0xC5h
open
pin 2-3
0xC6h
0xC7h
open
open
0xC8h
0xC9h
open
pin 1-2
0xCAh
0xCBh
pin 1-2
pin 2-3
0xCCh
0xCDh
pin 1-2
open
0xCEh
0xCFh
pin 1-2
pin 1-2
0xD0h
0xD1h
3
SLVU472
–
June 2011
DRV8830/DRV8832 Evaluation Module
Copyright
©
2011, Texas Instruments Incorporated