Search for a stepper motor driver.
Hi,The desired specification is as below:1.The operating voltage range:9-36VDC;2.1A peak current;3.with SPI or IIC interface,including enable and direction control pin respectively;4.up to 1/128...
View ArticleDRV8711 doesn`t start
Greatings! I`m using DRV8711 for a very first time. So I setup the driver:CTRL: 0x0019 // ENBL bit set, 8 step modeOFF: 0x001C // 15usTORQUE: 0x0196 // 150 in TORQUEDECAY: default DRIVE: 0x05A4 //...
View ArticleDRV10983 - Abnormal Kt lock reset
Hi,I am using DRV10983 to drive a 3W BLDC motor (kt=14.6 mV/Hz, R=4.95ohm) at around 2400 rpm.The system is working well when there are no faults.Recently I have started simulating some fault...
View ArticleDRV8307 motor speed control question
Hola,Does the motor speed control of DRV8307 is Open Loop Control or Feedback Control？Thanks ～
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DRV8825 EV board driver issue
Hola,I have downloaded the USB driver and application program of DRV8825, but it has an error when installing as below figure.May I know that where the problem is？ Thanks ～(Please visit the site to...
View ArticleDRV8303 output impedance (reconfirm)
Hello,May I reconfirm about the impedance of the GL_x ?Our customer uses the DRV8303,has some questions about the impedanceof the GL_x pin.Q1)It is mentioned the impedance of GL_x is from 1.6kohm to...
View ArticleDRV8818 Ichop
Hello,Our customer uses the DRV8818, with half step mode.The customer wants to control the current of the motor while keep some state.So, they change the value of the VREF voltage while keep some...
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DRV8711 - Slow Decay works in a strange way
Apologies if this has been discussed before but...........I couldn't find the answers in the datasheet or forum.I'm trying to reduce motor heating and noise on stand still by firstly reducing the...
View ArticleDRV8839 - does the nFAULT pin exist?
I'm checking out some BDC drivers and am confused by something on the DRV8839 datasheet (http://www.ti.com/lit/ds/symlink/drv8839.pdf)The simplified diagram shows an nFAULT pin coming back from the...
View Article8711 decay mode settings
Dear Sir,I am facing setting problem of 8711. My motor is running but creates lot of noise & it gets heatingFor 8711 setting we need some guideline to set "decay mode Vs micro-step Vs motor...
View ArticleDRV8885 DIR
Hello,Our customer uses the DRV8824,DRV8884 and DRV8885.The customer has a question about DIR logic.When the DIR logic is high,DRV8824: Phase B lag of 90 degree in regard to Phase...
View ArticleDRV8825 understanding and Thermal Issue
Hi I am using DRV8825 Driver IC , I have few questions listed below :1. I am working on various frequency but stepper motor supports only certain frequency at which the motor rotates. Can you please...
View ArticlePowerPAD (DRV8825) to 34.5oz copper + fin heatsink
I'm looking at massively increasing the direct PowerPAD cooling of the DVR8825, well above and beyond what it would see on a normal PCBThis is because TI doesn't have a version of the DVR8825's gate...
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Operating a set of Proportional Solenoid Valves
Hello! I have an application requiring me to individually control up to 5 miniature proportional valves with the output of a microcontroller (0-5V). Preferably this will be done by up to 5 PWM channels...
View ArticleDRV8312-69M-KIT code changing
Dear sir,I am using DRV8312-69M-KIT kit right now. I am trying to tap the inputs which given to DRV8312 on the development board, give then as inputs to another my own circuit which includes DRV8302...
View ArticleDRV8711DCPR
Hello,I have few basic Question on this Chip default status/settings. I am driving a stepper motor with this chip (DRV8711DCPR).. when i am done with all my SPI Settings, I am seeing a very peculiar...
View ArticleDRV8711 setup
Greatings! I have DRV8711 up and running, but I`m experiencing problems with the settings. I want to use NEMA 17 stepper motor. I`m using IRF530 MOSFETs for the bridge.Here are my settings:CTRL: 0000...
View ArticleNewbie -- Need help with compiling PM Sensorless project with Piccolo F2806x...
I am new to the TI tools (MCUs, CCS, ControlSUITE). To get started I am trying to follow the instructions for the PM Sensorless application example in...
View ArticleDRV8302 wiring (PullUps, ..)
Hello guys,I have some questions about wiring the DRV8302.PWRGD: the datasheet says 'open drain output with external pullup resistor required'. Do I need a pullup resistor, if I don't read the output...
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