RE: survey motor driver request application in IP Cam zoom in/out
Totally agree with Rick that we can enable auto tune all the time which acting better than manual decay adjustment mostly. For the Rsense setting, please set the RMS current level the same as the motor...
View ArticleRE: DRV8711 write issue after sleep
Hi Wilson, in the application the uC task runs at 1ms, so the delay between nSLEEP and following SPI communication is 1ms or more. Anyway, when we analyzed the problem, we used a step by step / manual...
View ArticleRE: Startup Delay in DRV8302
Hi Imthiaz, Sorry, I was unclear about checking the capacitors. I meant to say please check the voltages at the AVDD, DVCC, and GVDD capacitors. If the voltage ramps on these regulators are delayed,...
View ArticleStartup Delay in DRV8302
Hi Fellow MembersI have been using DRV8302 for quite sometime. I recently changed my MOSFET to IRFS7734 (Qg=180nC, Typical). I noticed a startup delay of typical 1~2 sec. This startup delay occurs only...
View ArticleRE: DRV8711 write issue after sleep
Hi Gianfranco, Now that I know the voltage, I will try 48V on our side. If that works, then capturing a few waveforms may become necessary. Will update you in a few days.
View ArticleRE: DRV8332,Load Current drawn by bldc motor dips around 1A when subjected to...
Hi Ujwla, Can you provide more information? Is this your own board? Where is the current measured? What is your PVDD voltage? What do you mean by the current dips, and what is a step command? How much...
View ArticleDRV8332,Load Current drawn by bldc motor dips around 1A when subjected to...
DRV8332,Load Current drawn by bldc motor dips around 1A when subjected to step cmd.
View ArticleRE: DRV10975 for gimbal applications
Hi Hasan, Can you please provide details about difficulties faced in driving motor in open loop. We also have one more device in same family DRV11873 - It drives motor in 150 deg trap mode and it has...
View ArticleWarning: Gerber files are incomplete in BOOSTXL-DRV8305EVM HW files
FYI, two Gerber files are missing from the set of Gerber files BOOSTXL-DRV8305EVM HW files.Specifically, the board is 4-layer, but the Gerber files for the two inner layers are missing from the...
View ArticleRE: DRV10975 for gimbal applications
Hello Krushal,Thank you for your interest. I'm having difficulty to start spinning motor fastly. When I get the EVM I could't spin properly the motor inside the box. It starts spinng but few seconds...
View ArticleRE: Warning: Gerber files are incomplete in BOOSTXL-DRV8305EVM HW files
Hi Mike, Our expert on the HW files has been contacted and should reply soon.
View ArticleRE: Warning: Gerber files are incomplete in BOOSTXL-DRV8305EVM HW files
Hi Mike,Quite sorry for the trouble and hassle. It looks like the output file generator did not have the inner layers included for the files we placed on the web. We will get this...
View ArticleRE: DRV8412 - PVDD_B & C ampacity issue
Hi Joe, The PVDD_x pins are not tied together internally. Please note section 7.4 of the datasheet: Because each half bridge has independent supply and ground pins, a shunt sensing resistor can be...
View ArticleDRV8412 - PVDD_B & C ampacity issue
Are all of the PVDD_x pins tied together internally?I'm concerned with the PCB layout that a 12 mil wide trace @ 1.5oz Cu is going to current limit channels B&C when using the DRV8412 at it's max...
View ArticleRE: DRV3201-Q1 Maximum value of tdeg,ENon ( A-56)
Hi Ushikubo-san, Sorry for the delay, this question is still open on our side and closer to resolution. Regards, Will Toth
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DRV3201-Q1 Maximum value of tdeg,ENon ( A-56)
Hello, tdeg,ENon doesn’t have maximum value.Please give me any information of maximum value of tdeg,ENon. Best Regards.
View ArticleCurrent sensing in PMSM FOC
Hi,I am using TMDSHVMTRPFC KIT .How many shunt resisitors are used in PMSM FOC example code to measure the current. We need to measure only phase a and phase b currents right?Is there a provision to...
View ArticleRE: Warning: Gerber files are incomplete in BOOSTXL-DRV8305EVM HW files
Nick,Thanks for the reply and promised corrective action.You said:Unfortunately as a commercial entity it becomes difficult for us to utilize non-commercial tools....Suggest that Ti follow the example...
View ArticleRE: DRV8302 Fault Pin
Hi Nick,We want to start new design, we are waiting for your reply. What do you think about TMS320F2806x or can you give us some advice?
View ArticleDRV8302 Fault Pin
Hi everyone,I am using a DRV8302 to drive a BLDC motor but DRV8302 Fault Pin always equal to zero. I share my drawing and measurement below;I have run my circuit and Code Composer program. while...
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