Texas Instruments DRV887 Series Скачать руководство пользователя страница 2

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SLVUBG7C – August 2018 – Revised December 2019

DRV8876/74 Evaluation Module

PH/EN Control Mode

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PWM Control Mode

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Independent Half-Bridge Control Mode

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Trademarks

MSP430, eZ-FET are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.

Содержание DRV887 Series

Страница 1: ...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 cu...

Страница 2: ...pyright 2018 2019 Texas Instruments Incorporated DRV8876 74 Evaluation Module 1 PH EN Control Mode 6 2 PWM Control Mode 7 3 Independent Half Bridge Control Mode 8 Trademarks MSP430 eZ FET are trademar...

Страница 3: ...ability the MSP430 MCU can be reprogrammed through the eZ FET emulation circuit found in newer MSP430 Launchpads We recommend the http www ti com tool MSP EXP430FR5969 Note that a four pin angled male...

Страница 4: ...the DRV8876 74 When nFAULT is low the Fault LED D2 will turn on The VREF potentiometer sets a reference voltage between 0 V and 3 3 V The IPROPI signal voltage will be proportional to the current out...

Страница 5: ...eed Adjustment Potentiometers 5 SLVUBG7C August 2018 Revised December 2019 Submit Documentation Feedback Copyright 2018 2019 Texas Instruments Incorporated DRV8876 74 Evaluation Module Figure 2 PMODE...

Страница 6: ...H bridge to be controlled with a speed and direction type of interface The truth table for PH EN mode is shown in Table 1 This method is best for bidirectional driving for one motor Figure 3 PMODE ju...

Страница 7: ...truth table for PWM mode is shown in Table 2 This method is best for bidirectional driving for one motor Figure 4 PMODE jumper configuration for PWM Table 2 PWM Control Mode IN1 IN2 OUT1 OUT2 DESCRIPT...

Страница 8: ...tched into independent half bridge control mode This mode allows for each half bridge to be directly controlled in order to support high side slow decay or driving two independent loads The truth tabl...

Страница 9: ...ometer IN1 PWM clockwise and the motor connected across OUT1 starts to turn Continue adjusting as desired until the maximum speed is reached If using a second motor perform this process with potentiom...

Страница 10: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...