Datasheet

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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.

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

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.

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 – 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).

4 Jumpers and Controls

4.1 DRV8830 EVM Jumpers and Controls

4.1.1 JP4 and JP5 – I

C Slave Address Select

JP4 and JP5 are used to select the base I

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:

Table 1. I

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

SLVU472– June 2011 DRV8830/DRV8832 Evaluation Module

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