Texas Instruments DRV887 Series, User Manual

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1 SLVUBG7C – August 2018 – Revised December 2019
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Copyright © 2018–2019, Texas Instruments Incorporated
DRV8876/74 Evaluation Module
User's Guide
SLVUBG7C – August 2018 – Revised December 2019
DRV8876/74 Evaluation Module
This document is provided with the DRV887x family customer evaluation modules (EVM) as a supplement
to the
DRV8876 , DRV8876-Q1 , DRV8874 , and DRV8874-Q1 datasheets. This user's guide describes the
hardware implementation of the EVM.
CAUTION
Hot surface . Contact may cause burns. Do not Touch.
DRV8876EVM and DRV8876-Q1EVM are rated for power supply voltages
between 4.5 VDC and 37 VDC max. The components can support peak output
currents up to a maximum of 3.5 ADC. To maintain component temperatures
below the 130°C rating of the printed circuit board material, TI requires that the
continuous current of both channels be limited to 1.7 ADC (each) when
operating for extended periods of time at an ambient temperature of 25°C.
DRV8874EVM and DRV8874-Q1EVM are rated for power supply voltages
between 4.5 VDC and 37 VDC max. The components can support peak output
currents up to a maximum of 6 ADC. To maintain component temperatures
below the 130°C rating of the printed circuit board material, TI requires that the
continuous current of both channels be limited to 3.3 ADC (each) when
operating for extended periods of time at an ambient temperature of 25°C.
Contents
1 PCB (Top-Assembly View)
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3
2 Introduction
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3
3 Power Connectors
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3
4 Test Points
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4
5 PMODE Jumper and Speed-Adjustment Potentiometers
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4
5.1 PH/EN Control Mode (PMODE = Logic Low)
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6
5.2 PWM Control Mode (PMODE = Logic High)
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7
5.3 Independent Half-Bridge Control Mode (PMODE = Hi-Z)
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8
6 Operation of the EVM
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9
6.1 Dual Motor Operation
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6.2 Single Motor Operation
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9
List of Figures
1 PCB (Top 3-D View)
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3
2 PMODE header and PWM Potentiometers
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5
3 PMODE jumper configuration for PH/EN
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6
4 PMODE jumper configuration for PWM
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7
5 PMODE does not require a jumper for independant half-bridge mode
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8
List of Tables