Texas Instruments DRV8251/AEVM, Руководство пользователя

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User’s Guide
DRV8251/AEVM User's Guide
ABSTRACT
This document is provided with the DRV82X1 family customer evaluation modules (EVM) as a supplement to
the DRV8251, DRV8251A, DRV8231 and DRV8231A data sheets. This user's guide describes the hardware
implementation of the EVM.
Hot surface . Contact may cause burns. Do not exceed limitations of the DRV devices:
4.5-V to 48-V operating supply voltage range • RDS(on), voltage, and current sense/regulation
variants (external shunt resistor and integrated current mirror) – DRV8251: 4.5-V to 48-V, 450-mΩ,
shunt – DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror – DRV8231: 4.5-V to 33-V, 600-mΩ, shunt –
DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror • Keep the peak current below
1.6 A RMS to avoid
temperatures above 130°C (at 25°C ambient temperature).
Table of Contents
1 PCB (Top and Assembly View) .............................................................................................................................................. 2
2 Introduction ............................................................................................................................................................................. 3
3 Power Connectors and Coding ............................................................................................................................................. 3
3.1 Programming EVM............................................................................................................................................................. 3
4 Component Description ......................................................................................................................................................... 5
5 Operation of the EVM ............................................................................................................................................................. 6
5.1 H-Bridge Control................................................................................................................................................................ 7
5.2 Current Sensing and Current Regulation Details............................................................................................................... 7
6 Removing and Installing Supported Motor Drivers ............................................................................................................. 9
7 Revision History ...................................................................................................................................................................... 9
Trademarks
eZ-FET ™ is a trademark of Texas Instruments.
All trademarks are the property of their respective owners.
www.ti.com Table of Contents
SLVUC78 – NOVEMBER 2021
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