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User's Guide

SLOU287–January 2010

DRV8412EVM Motor Drive Evaluation Board

The DRV8412 customer evaluation module demonstrates the operation and performance of the DRV8412

device from Texas Instruments. The EVM can be used with a MCU controller module or can be wired into

an existing system.

Contents

1 Introduction .................................................................................................................. 2

2 Operation ..................................................................................................................... 4

3 Schematics, PCB Layers, and Bill of Materials ......................................................................... 6

List of Figures

1 The TI DRV8412EVM Motor Drive Evaluation Board – Top View.................................................... 3

2 The TI DRV8412EVM Motor Drive Evaluation Board – Bottom View................................................ 3

3 DRV8412EVM Schematic.................................................................................................. 6

4 DRV8412EVM – Top Layer Composite.................................................................................. 7

5 DRV8412EVM – Top Layer Copper ...................................................................................... 7

6 DRV8412EVM – Bottom Copper.......................................................................................... 8

List of Tables

1 Key Parameters ............................................................................................................. 2

2 Power Supply Requirements .............................................................................................. 4

3 Mode Pin Configurations................................................................................................... 5

4 Bill of Materials ............................................................................................................. 8

SLOU287–January 2010 DRV8412EVM Motor Drive Evaluation Board

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Summary of content (10 pages)

PAGE 1
User's Guide SLOU287 – January 2010 DRV8412EVM Motor Drive Evaluation Board The DRV8412 customer evaluation module demonstrates the operation and performance of the DRV8412 device from Texas Instruments. The EVM can be used with a MCU controller module or can be wired into an existing system. 1 2 3 Contents Introduction .................................................................................................................. 2 Operation ...........................................................
PAGE 2
Introduction www.ti.com 1 Introduction 1.1 Description The DRV8412 is a dual full bridge PWM motor driver. It has a maximum recommended supply voltage of 50V with an absolute maximum of 70V. The DRV8412 is capable of delivering 2x3A continuous output current and 2x6A peak current per device. The DRV8412 has an advanced protection system consisting of short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection.
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Introduction www.ti.com Figure 1. The TI DRV8412EVM Motor Drive Evaluation Board – Top View Figure 2.
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Operation www.ti.com 2 Operation 2.1 Quick Start List for Stand-Alone Operation Follow these steps to use the DRV8412EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the EVM module can be made by inserting stripped wire for the power supplies and output connections. 2.1.1 Power Supply Two power supplies are required to power up the EVM. One is needed for system power, logic and gate drive, while the second is for the output stage power supply.
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Operation www.ti.com Table 3.
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C1 PVDD NOM = 50V MAX = 52.5V HIGH VOLTAGE POWER INPUTS 1000ufd/63V VZ GND + PVDD EMI SNUBBER GND 0.1ufd/100V 0805 C2 PVDD GVDD GVDD 1 VR1 Q1 S +3.3V R2 GND DRV8412EVM Motor Drive Evaluation Board Copyright © 2010, Texas Instruments Incorporated 1 2 J2 M2 0 0 1 1 X M3 0 0 0 0 1 GRAY 6A/250V 30 29 28 27 26 25 0.1ufd/16V 0603 330ufd/16V M 0 1 0 1 X 4HB/2FB 4HB/2FB 1PFB 2FB NA M1 OUTPUT GND 2 UA78M33CDCY 3.
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Schematics, PCB Layers, and Bill of Materials www.ti.com 3.2 DRV8412EVM PCB Layers Figure 4. DRV8412EVM – Top Layer Composite Figure 5.
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Schematics, PCB Layers, and Bill of Materials www.ti.com Figure 6. DRV8412EVM – Bottom Copper 3.3 Bill of Materials for DRV8402DKD_EVM Table 4. Bill of Materials QTY 8 REF DES Description Vendor Vendor Part No. MANU MANU Part No. 1 U1 MOTOR DRIVE POWER AMP HTSSOP44-DDW ROHS Texas Instruments DRV8412DDW Texas Instruments DRV8412DDW 1 VR1 VOLT REG 3.3V 500mA SOT223-DCY ROHS Digi-Key 296-13424-1 Texas Instruments UA78M33CDCYR 2 VR2 VOLT REG 5.
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Schematics, PCB Layers, and Bill of Materials www.ti.com Table 4. Bill of Materials (continued) QTY REF DES Description Vendor Vendor Part No. MANU MANU Part No. 1 R6 RESISTOR SMD0603 357 OHM 1% THICK FILM 1/10W ROHS Digi-Key P357HCT Panasonic ERJ-3EKF3570V 2 R2, R3 RESISTOR SMD0603 392 OHM 1% THICK FILM 1/10W ROHS Digi-Key P392HCT Panasonic ERJ-3EKF3920V 1 R4 RESISTOR SMD0603 4.99K OHM 1% THICK FILM 1/10W ROHS Digi-Key P4.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.