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Hardware Overview

3

SLVUBF8 – June 2018

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DRV8847x EVM User's Guide

2.2

Board Overview

The DRV8847EVM and DRV8847SEVM let the user access the VM (motor voltage) power rail through a
terminal block (J5). A set of test clips in parallel with the terminal block lets the user monitor the input
power rail.

The VM voltage must be applied according to the recommended parameters in the

DRV8847 Dual H-

Bridge Motor Driver

data sheet

.

Figure 2

shows the primary blocks of the hardware on the DRV8847EVM or DRV8847SEVM.

NOTE:

The VDD voltage for the microcontroller comes from the microUSB connector.

Figure 2. DRV8847EVM Board Overview

The primary components of the EVM board are:

The DRV8847 device (U4) which is a 2.8-V to 18-V dual H-bridge motor driver

The MSP430G2553 MCU (U1) which is an ultra-low power mixed signal microcontroller

The power connection (J5)

The motor Connections (J9, J10)

The test point (J4)

Содержание DRV8847 Series

Страница 1: ...ibes the hardware implementation operation and configuration options of the EVM CAUTION Hot surface Contact may cause burns Do not Touch Contents 1 Overview 2 2 Hardware Overview 2 2 1 Features 2 2 2 Board Overview 3 2 3 Test Points 4 2 4 Jumpers 5 2 5 Motor Outputs 5 2 6 Operation of the EVM 5 List of Figures 1 DRV8847EVM Top 3D Overview 2 2 DRV8847EVM Board Overview 3 3 Test Points and Jumper Co...

Страница 2: ...he driving current Use the DRV8847SEVM to evaluate the I2 C device variant DRV8847S The EVM has an MSP430 microcontroller and an USB interface chip to communicate with the application GUI provided with the EVM The maximum operating voltage for this board is 18 V with a maximum current of 2 A if set to parallel mode The microcontroller firmware outputs the control signals and PWM signals to move th...

Страница 3: ...VM voltage must be applied according to the recommended parameters in the DRV8847 Dual H Bridge Motor Driver data sheet Figure 2 shows the primary blocks of the hardware on the DRV8847EVM or DRV8847SEVM NOTE The VDD voltage for the microcontroller comes from the microUSB connector Figure 2 DRV8847EVM Board Overview The primary components of the EVM board are The DRV8847 device U4 which is a 2 8 V ...

Страница 4: ...These test points are connected in series to the microcontroller through 0 Ω resistors and can be depopulated easily in the case an external microcontroller is used Table 1 shows the J4 header connections as shown in Figure 3 Table 1 J4 Header Connections Header Label Description Ground R8 nSLEEP R9 IN1 input R10 IN2 input R11 SDA MODE R12 SCL TRQ R13 IN3 input R14 IN4 input R15 nFault R16 3P3V Fi...

Страница 5: ...lable as shown in Figure 1 to connect the desired output load The outputs change depending on the type of load to be driven either stepper BDCs or solenoids 2 6 Operation of the EVM Do these steps to operate the EVM Step 1 Download and install the drivers and GUI from the tool folder for the DRV8847EVM or DRV8847SEVM Refer to the DRV8847EVM and DRV8847SEVM Software User s Guide for detailed steps ...

Страница 6: ... TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN including but not limited to any patent right copyright mask work right or other intellectual property right relating to any combination machine or process in which TI product...

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