RE: DRV8308EVM: Use Back EMF instead of Hall Sensors?
Hi Mason, The same constraints above apply to both the DRV8307 and DRV8308.
View ArticleDRV11873: I'm looking for a scalable alternative to the DRV11873
Part Number: DRV11873I have been experimenting with the DRV11873 and it is ALMOST exactly what I need. I've been looking for an alternative and the datasheets I've looked at just don't show what I'm...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hello,Thank you for the information.How much current is being pulled out of the VREG pin when nFAULT begins to toggle?What devices are supplied by VREG in your application?Are you able to read back the...
View ArticleDRV8305: device danaged more times with AVDD 0V after crash
Part Number: DRV8305Hello,Im new here . Dont know if Im heard.I tets the drv83055Q in an automotive application.UVDD 20 V, have exactly the schematics of the application in the datasheet. PWM...
View ArticleRE: DRV8305: GERR over temperature
Hi Yamamoto-san,Yes, this is correct. The GERR spec across temperature is the same for DRV8305 and DRV8305-Q1.
View ArticleRE: BOOSTXL-DRV8305EVM: recommendation of distance between MOSFET source and...
Hi Yamamoto-san, The concern with this use case is more related to impedance mis-match and loop antennas in your application. By adding the wire loop soldered to this pin, the motor current path now...
View ArticleBOOSTXL-DRV8305EVM: recommendation of distance between MOSFET source and...
Part Number: BOOSTXL-DRV8305EVMDear all,If there are recommendation of distance, could you teach me?■Back groundWe tested this board and find spikes at Q4-4 when we wired board.Please see attached file...
View ArticleRE: DRV8305: Dead time over temperature
Dear Yamamoto-san, We will look into this and reply back to you. Thanks
View ArticleRE: DRV8307: DRV8307 to change direction, the Motor speed is different ?
Hi Jossun, As Prashant suggested, the glitches could be affecting the operation. What pullup resistor do you have on the halls? Can you decrease the resistance to remove the glitches?
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
regarding the VREG: I crashesd 3 devices. The first device it was a 83055Q the VREG powered my controller at an current of about 40 mA. Accidently I crased the first device by overload the the VREG....
View ArticleRE: DRV8301: RT_CLK Timing Resistor Value for Built-in Buck Regulator
Hi Dale, Sorry for the delayed response. We will investigate and reply soon.
View ArticleRE: DRV8811: Issue with DRV8811
Sorry to intrude, but I too have this date code 54TC C7YD, so I will be interested in this outcome.
View ArticleRE: DRV8301: RT_CLK Timing Resistor Value for Built-in Buck Regulator
Not surprised that you have issues with 2 k for your RT resistor. That is way outside the usable range.
View ArticleDRV8301: RT_CLK Timing Resistor Value for Built-in Buck Regulator
Part Number: DRV8301From what I can gather, the buck regulator block in the DRV8301 is the same as the TPS54160; the application notes and reference designs for the TPS54160 can/should be used for...
View ArticleRE: EV vehicle motor driver
The battery voltage depends on the battery pack to be used. You should be able to get more information from battery venderFor BOSCH 500W motor, you can get more information from...
View ArticleEV vehicle motor driver
I am designing an Electric Scooter using Li-Ion batteries.I need a help for selecting a motor for this application. I have considered 4 motors for it.1. Permanent magnet Synchronous motor2. BLDC...
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hello,I appreciate the detailed information, this is very helpful for our debug.Could you share a schematic of how you're using the DRV8305 devices? Specifically I'm interested in how you have the...
View ArticleRE: What is the approach used to start PMSM when not knowing the position of...
do we need saliency to track initial position.In case of Surface pole mounted PMSM there is no saliency, in that case what is the approachWhats the algorithm to get initial startuphow to start with...
View ArticleRE: DRV8811: Issue with DRV8811
Hello Adrian,What problems are you facing with the DRV8811 devices? Can you please describe it?
View ArticleDRV8811: Issue with DRV8811
Part Number: DRV8811In one of our products we use DRV8811 chips to control stepper motors. We faced some issue with these chips in the past, where the driver "locked up" and motor movement ceased to...
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