DRV8412 TEC DRIVER APPLICATION
Can DRV8412 be used to drive two External TEC's having a maximum of 15V,3A specifications in dual full bridge mode?If the above can be used, PWM A and PWM B will be used to control the first TEC and...
View ArticleRE: DRV8834: nFault while SLEEP state
Hi Torsten, What you are seeing is the internal logic being powered down. The datasheet discusses this when exiting sleep: When exiting sleep mode, the nFAULT pin will be briefly driven active low as...
View ArticleRE: DRV8834: nFault while SLEEP state
Hi Rick, Thanks for the response. I focussed on the nFAULT pin only so I haven't considered VINT. That's the behavior I need. Thanks! Regards, Torsten
View ArticleDRV8834: nFault while SLEEP state
Hello,I am using DRV8834 driver along with a stepper motor. I also use the SLEEP state of this driver. According to the datasheet I put the device in SLEEP state by driving the nSLEEP pin low. But for...
View ArticleRE: DRV8711 write issue after sleep
Hi Gianfranco, I was not able to duplicate your finding. I wrote to all registers, enabled the device and then wrote to the CTRL register. Have you looked for unwanted clock or chip select pulses as...
View ArticleDRV8711 write issue after sleep
I want to share this issue that I recently discovered on DRV8711:if during sleep (SLEEPn forced L) the SPI is used to write 3 or more registers, then after resuming from sleep the first write access is...
View ArticleRE: survey motor driver request application in IP Cam zoom in/out
Hi Wilson, Could you let me know what situation we can use AutoTune function? if we use AutoTune function, RSENCE suggest how to design? thanks. Best Regards, Duke Kuo
View ArticleRE: Material Composition for h-bridge drivers
Hi Dean, Our devices typically have nickel and tin. You can find material compositions here: www.ti.com/.../materialcontentsearch.tsp Another available resource is:...
View ArticleMaterial Composition for h-bridge drivers
Hello I have a unique need for an h-bridge driver (basically use it as a controlled DPDT). I need a part that will handle +/- 5A, and in addition it will be used in an MRI environment.. so the material...
View ArticleRE: DRV10975 for gimbal applications
Hi Hasan, Our experts have been notified and should reply soon.
View ArticleDRV10975 for gimbal applications
Hello,I'm developing a gimbal application and planning to use a DRV10975 for motor driver. Since I'm using a gimbal motor which provides me high torque, almost all of the gimbal motors do not have a...
View ArticleRE: About DRV8880 AutoTune function
Hi Kuo,1) It is suggested to use AutoTune at all times. The motor specified should work with AutoTune.2) What do you mean RSENSE suggest how to design?The RSENSE is the same for all decay modes. It is...
View ArticleAbout DRV8880 AutoTune function
Hi Sir,My company currently simulate DRV8880 now, but have some question need you help1. About DRV8880 AutoTune function, what situation we can use AutoTune function? Look spec should be relate...
View ArticleRE: survey motor driver request application in IP Cam zoom in/out
Hi Kuo, Your question was answered e2e.ti.com/.../502976
View Articlesurvey motor driver request application in IP Cam zoom in/out
Hi all,My customers survey motor driver request application in IP Cam zoom in/outDriver Request: Step motor driver spec Logic Supply Voltage: DC 3.3VMotor Supply Voltage: DC12V and...
View ArticleRE: How to overcome APDF and BPDF errors in DRV8711 based stepper motor control
Hi Ramesh, Please note section 8.1.2 of the datasheet: 8.1.2 Optional Series Gate Resistor In high current or high voltage applications, the low side predriver fault may assert due to noise in the...
View ArticleHow to overcome APDF and BPDF errors in DRV8711 based stepper motor control
Hi, We are using a stepper motor setup and DRV8711 is driver for it. We are seeing APDF or BPDF flag set and motor stopping randomly. We are just running the motor with limited current with 250mohm as...
View ArticleRE: Startup Delay in DRV8302
Hi RickStartup Delay is the time difference between EN_GATE and Motor Turning. Capacitors at DVDD, AVDD and GVDD are 2.2UF.ThanksImthiaz
View ArticleRE: DRV8711 write issue after sleep
Hello Rick, the VM was 48V. We didn't notice anything odd on the chip select and/or clock signals. Digital signals are driven by a uC through isolator/buffer like ISO7231 and ISO7220 (the 5V supply is...
View ArticleRE: DRV8711 write issue after sleep
Hi Gianfrance, Rick Just a thought here whether the time between nSLEEP high and SPI operation will be the reason to reproduce the issue or not. What is the delay after waking in customer board? Maybe...
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