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Introduction

2.3 Jumpers

There are three jumpers normally installed on the EVM.

Two jumpers, EN1 and EN2, control the enable inputs on the DRV8839 and are used to enable or disable

the motors attached to O1 and O2. The other jumper, labeled nSLP, controls the low-power state, or sleep

state, on the DRV8839.

2.3.1 ENABLE Jumpers (EN1 and EN2)

The EN1 and EN2 jumpers are found in Figure 2. Installing the EN1 jumper provides a logic high to the

DRV8839 EN1 pin and the motor connected to the O1 output is enabled. Installing the EN2 jumper

provides a logic high to the DRV8839 EN2 pin and the motor connected to the O2 output is enabled.

Figure 2. ENABLE Jumpers (EN1 and EN2)

2.3.2 SLEEP SELECT (nSLP) Jumper

The nSLP jumper is found in Figure 3. Installing the jumper places the DRV8839 in an ACTIVE state and

the motors will spin. Removing the jumper places the DRV8839 in a low power consumption, or sleep

state, and the motor outputs along with internal circuitry will be turned OFF.

SLVU879–February 2013 DRV8839 Evaluation Module

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