DRV8701: DRV8701 interferences radiation
Part Number: DRV8701Hello,we have designed a motor control board based on a DRV8701 that works fine but we experience EMI trouble.When DRV8701 is in sleep, there are no radiations.When DRV8701 is...
View ArticleRE: DRV8813: the supply current
Hi Ogane-san, How much difference is observed between the two devices? There are several possibilities. The most probable are: The current regulation varies from device to device. This variation can be...
View ArticleDRV8813: the supply current
Part Number: DRV8813Hi all.My customer evaluated DRV8812 and DRV8813 with same board.The supply current of DRV8813 is lower than DRV8812.My customer ask me the reason.I think that it is caused by low...
View ArticleDRV10983: TIDA-00652_REQUEST
Part Number: DRV10983Hello.My name is sean.I would like to ask about TI Design_TIDA-00652.1) Is it possible to change the output power from 30W to 40W?2) Is it possible to change VM from 24V to 25V?3)...
View ArticleRE: DRV8704: DRV8704 - OCP register values are set to '1' and fault triggered...
Hi Husnain, If the motor is not connected, the drain to source voltage of the enabled FET should be close to 0V. Please place a resistor divider at an output. A 20k to VM and 10k to GND is used to...
View ArticleRE: DRV8308: tune the registers
Hi Phil, i didn't say that i am working in clock frequency mode The minimun speed i want to achieve is 200rpm (10Hz) As for your suggestions: 1- AA_SETPT is already set to 0, and if AG_SETPT is less...
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RE: DRV8303: DRV8303 Flow Through Drive of High and Low Side FETs
I have moved to testing different MOSFETs with higher gate turn on thresholds. CSD19532Q5B. I don't want to use these, as they have higher Rds(on).It doesn't matter how much dead time I introduce....
View ArticleRE: DRV8885: set the TRQ High-Z
Hi Aoyama-san, You are correct. There could be additional current flowing in the mcu if the gpio is set to high-z. This current should be minimal, but there are a few options if the current is a...
View ArticleDRV8885: set the TRQ High-Z
Part Number: DRV8885Hello,It may be not related directly this device.Our customer use the DRV8885.The customer set the TRQ using I/O port of an MCU.When the customer set the TRQ Hi-Z, the voltage of...
View ArticleRE: DRV8308: tune the registers
Sorry Phil, With SPDGAIN = 0 The speed is the double than the target speed. So actually, the motor was spinning at 500rpm instead of 250rpm. I have configured the SPDGAIN = 1 Should i tune poles and...
View ArticleRE: TINA/Spice/DRV8885: DRV8885 with TINA-TI
Hi Asano-san, Currently, that is not possible. However, there is an EVM available for evaluation purpose. The link is www.ti.com/.../drv8885evm. I hope this helps, thank you.
View ArticleTINA/Spice/DRV8885: DRV8885 with TINA-TI
Part Number: DRV8885Tool/software: TINA-TI or Spice ModelsHi,Expart.Is it possible to simulate DRV8885 with TINA-TI?My customer want to simulate about output-waveform or transient-response.Best...
View ArticleRE: DRV8885: set the TRQ High-Z
Hi Rick-san, Thank you for your fast reply. I will feedback the customer this information. Thanks, Naoki Aoyama
View ArticleRE: DRV8305: device danaged more times with AVDD 0V after crash
Hi Phil,Thansk for your information and suggestions. What do you comment about diode protection about SP/SN pins? Do we face any side-effects of using TVS between these pins?Regards,Eray CANLI
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: DRV8308: tune the registers
Hi phil, Ok thans! I have changed the AGSETPT to 12Hz and tuned the LOOPGAIN to 33 so now the motor is spinning quite well at 250rpm. In order to make the motor spin at 200rpm....once AGSETPT is set to...
View ArticleRE: BLDC Controller EVM
Hi Ross, The BOOSTXL-DRV8323RS is a good starting point. The max voltage is 52V What is the max voltage of the 48V supply? If there is not enough margin, the DRV8301-HC-C2-KIT should work.
View ArticleBLDC Controller EVM
Hi There,Which would be the best choice of EVM for a 12000rpm, 0.5Nm, 48v, 400W BLDC Motor, with sensors?I appreciate your help in advance.Regards,Ross
View ArticleRE: DRV8834: About unused pins of BOUT1 & 2
Hello Kanemaru-san,Our customer don’t use BOUT1 & 2 pins because they use the one DC motor.Then, I understand that they can open the unused pins(No connect).- This configuration is allowed. Use...
View ArticleRE: DRV8834: About unused pins of BOUT1 & 2
Hi Luis-san, Thank you for your prompt reply.I have one more question.If they don’t use Bphase(BOUT1 & 2), they can open the “STEP/BENBL “ and “DIR/BPHASE” and “BVREF” and “BDECAY” and “BISEN”...
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