DRV8432 Application basics
Hi!I bougth an DRV8432DKDR ic last week.I want to drive via an PIC18F4550 microcontroller.Any experiments for drive the chip by this uC.Please share your experiments about this.I want to use...
View ArticleDRV Limits and Recommendation
From the website it looks like DRV8834 and DRV8846 have eval boards. I would like some help in deciphering some of the information. For example, the DRV8834 eval board user’s guide discusses motion...
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DRV8412 output issues at low duty cycles
Hello,I am using the DRV8412 in parallel full bridge mode as a bipolar drive for a peltier unit, using two complimentary PWM signals at 250kHz. The circuit has an LC filter on the output, as well as...
View ArticleDRV8301 ABSOLUTE MAXIMUM RATINGS
HiMy customer is using DRV8301. He want to know ABSOLUTE MAXIMUM RATINGS of following pin. There are not ABSOLUTE MAXIMUM RATINGS of following pin in datasheet. Could you give me this information?-...
View ArticleDRV8711 Parameter Settings
Hi at all!I am trying to control a steppermotor with a resolution of 400 full steps per revolution (0.9°) in indexer mode with 256 microsteps.The problem is, that the motors movement isn't smooth. The...
View ArticleInquiry regarding used motor for DRV8711EVM
Hello, allNow we have one inquiry regarding used motor for DRV8711EVM from our customer.Please see the item below, and feedback us with your comment.When referring the website below, it seems that some...
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DRV8834 – About accuracy of ITRIP
Hi Team, Our customer are evaluating DRV8834 at the following condition.Could you please let me ask the following question? ----------------------[condition]-VREF=0.7V-RISENSE = 0.47Ω-ITRIP =...
View ArticleDRV8801 nFault when supplying VBB
HiI am using DRV8801EVM and sense resister changed from 0.2ohm(default) to 2.2ohm. I meet issue when VBB voltage is supplied to EVM. Issue is nFault is every time Low out put when VBB voltage is...
View ArticleThermal Management for DRV8711 and Heat sink options
Can anyone suggest good layout placement and guidelines for best thermal management performance of DRV8711 on a 4 layer pcb board.Also any suggestions on external heat-sinking options to the chassis...
View ArticleDRV8711 Holding current
Hello,I'm planning to use DRV8711 for Stepper motor (4A RMS) position + holding control. Below clarifications required.1. While using DRV8711 in micro step mode, how does the stepper motor holding...
View ArticleBOOST-DRV8711 Peak Current Rating
Hello from Argentina!.I have a question about the BOOST-DRV8711 , when study the schematics i note that the Rsense is 0.05ohm in series with each motor winding, so in the datasheet of DRV7711 we have...
View ArticleDRV8834 cad file
I'm looking all over for a drv8834 .bxl file. Does anybody know where I can find it?If the file is not available, does anyone know the process or a good tutorial for creating a schematic file to be...
View ArticleDo I need Isolate Drv8711 and MicroController from Each Other?
Hello,We are planing to use DRV8711 drivers with TivaC uCs. But I need some answers before schema.1) Do I need to isolate Power Line of Microcontroller and DRV8711 from each other with an Isolator....
View Articleperform single step with DRV8823
Hello,I want to use a DRV8823 stepper driver, but I also need to perform a single step.In the datasheet i saw that this device has a register's bit to enable the motor, but I dont understand how can...
View ArticleDRV8312EVM kit stopped working?
I had the DRV8312EVM kit running on my desktop and with my motor. I needed some compressed air to to cool the motor so I unplugged everything and moved over to an other desk and rewired everything, and...
View ArticleDRV8825 nRESET problem
Hello,The problem I am facing while using the DRV8825 Bipolar Stepper Motor Driver, is that the pulse duration that I have set at nRESET, does not reset the chip. I have looked at the data sheet and...
View ArticleAbout PWM Duty of DRV8800
Is operating DRV8800 at PWM Duty:100% possible?(Always Enable "H")Required operation is only a forward & reverse.Torque is fix. When impossible, please let me know a possible device.(24V/1.5Arms)...
View ArticleAbout the back electromotive force (BEMF) of DRV8800
Does DRV8800 have regulation of back electromotive force (BEMF) ?What voltage is BEMF?Best regards,Satoshi
View ArticleStepper Motor Noise DRV8711
Hello,I am using drv8711 motor driver in my design. I also have DRV8711EVM.The only differences between my design and DRV8711EVM is mosfets and limit resistor.My mosfets are CSD17506Q5A and my limit...
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