RE: DRV8885 - VRREF exceeding 1.28V when controlling IFS using a DAC
Hi Kawai-san, Design has confirmed the pin can be driven as high as the absolute maximum rating of the Current limit input pin voltage (RREF). The device will not suffer damage.
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DRV8885 - VRREF exceeding 1.28V when controlling IFS using a DAC
Hi Team,When controlling chopping current with the DAC (0V to 3.3V), there could be a possibility to apply voltage above VRREF (1.28V). I understand that the device would not properly operate, but,...
View ArticleRE: DRV8313EVM stand alone mode
Hi Adam, Firstly, I assume there is not any technical limitation to do this and I assume that I can open J2 which will allow me to upload the firmware and debug. There is no technical limitation. Yes,...
View ArticleRE: DRV8313EVM stand alone mode
Rick,Thanks for your quick reply and help. Clarifies things greatly for me. Could I ask one more question,The EVM has the 16 header pins. In the design file schematic (slvc593.zip/DRV8313EVM_SCH.pdf)...
View ArticleRE: DRV8313EVM stand alone mode
Hi Adam, As mentioned in the schematic, "Zero-Ohm-Jumpers R25,R26,R27,R29 and R30 toR34 should be removed in order to interface DRV8313 from external Micro-controller" There are 9 surface mount zero...
View ArticleRE: DRV8313EVM stand alone mode
Hi Rick, Thats a great help thank you. I am sorry, I had entirely missed that note on the interconnection schematic so everything is clear now. It was my thought that hooking up an external MCU would...
View ArticleDRV8313EVM stand alone mode
Hello All,I have a DRV8313EVM, using the software I have made my motor move. Now I want to move onto the next step.Reading document SLAA503 which I am unsure if it still relevant, I assume so, it...
View ArticleRE: DRV8307 LOCKn active
2048 (the input duty cycle matches output).I'm honestly not sure on the exact criteria to lose lock. We can look into that. Staying within 12.5% speed should definitely maintain lock.Best regards,RE
View ArticleRE: DRV8301, working well at first, then go to fault: GVDD_UV
Hi Rick Duncan, Can I design my pcb accordiing to BOOSTXL-DRV8301 board in addtion to its voltage? My board will work on 48V voltage.Any other questions I have to pay attention?
View ArticleRE: PWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel...
Hi,Any suggestions will be appreciated.My work is on hold. I am awaiting for the reply. I am planning to buy a few more DRV8432DKD ICs.Please suggest me any alternative way.Regardssai
View ArticleRE: Debugging DRV8313EVM JTAG/USB
Hi Adam,You are correct. The USB is for the GUI only and you do need an extra piece of hardware.The documentation does not mention that you will need a LaunchPad (MSP-EXP430G2) with a 4-pin header...
View ArticleRE: DRV8301, working well at first, then go to fault: GVDD_UV
Hi user1416086, Yes you can design your pcb according to the BOOSTXL-DRV8301. The components (FETs and capacitors) should be changed for 48V operation. Depending on the current, the capacitors may need...
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RE: Debugging DRV8313EVM JTAG/USB
Hi Rick,Thanks again for your answer and working on a Saturday! If I could, I'd send a beer.I have the MSP-EXP430G2 so maybe I can do this today.From that are the following true:1) I need to rotate the...
View ArticleRE: Debugging DRV8313EVM JTAG/USB
Hi Rick, After doing some extra research your comment about the connections finally clicked. I see it now looking at the schematic for DRV8308EVM and MSP-EXP430 design docs. I've pieced my...
View ArticleRE: Debugging DRV8313EVM JTAG/USB
Hi Adam, You are correct; the jumpers should be rotated as shown. The pins do not appear to be straight across for the DRV8313. It appears the order is reversed. If we use you example and number the...
View ArticleRE: Debugging DRV8313EVM JTAG/USB
Hi Adam, I missed your earlier reply. Thank you for taking the time to research the connections. We came to the same conclusion. Have a good weekend and good luck programming.
View ArticleRE: Debugging DRV8313EVM JTAG/USB
HI Rick, Thanks again for confirming. I'm having such a blast with this as it is entirely new but still cautious so your confirmation is helpful. I wanted to try and figure something for myself and I'm...
View ArticleDebugging DRV8313EVM JTAG/USB
Hi All,I am trying to get my DRV8313EVM loaded with some custom firmware and get told no USB FET could be found in CCS when going to debug. I hooked up my MSP430 launch pad, hit debug and it worked....
View ArticleDRV8308 SPI Current Monitoring
Hi Team,Is there any way we can monitor Isense using SPI on the DRV8308?Thanks,Nabeel
View ArticleRE: DRV10975 tuning: current probe recommendation
Thanks for your reply. It will be a day or two before I can respond ... I'm not ignoring you!
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