Clik here to view.
RE: DRV8711: About drv8711's Low side gate resistor
Dear Luis Riveros,The attachments are the waveforms of customer grabs,please help to analysis with the waveforms how does the low side gate resistor work?Thanks
View ArticleClik here to view.
DRV8711: About drv8711's Low side gate resistor
Part Number: DRV8711Hello,Because the early version of the drv8711's manual did not have this resistance,So the customer want to know how does the low side gate resistor work to ruduce predriver fault...
View ArticleDRV8711: TORQUE register change
Part Number: DRV8711Hi, I am using BOOST-DRV8711 board and Encoder feedback. My application needs to drive the motor with different Torque(torque settings in decimal 20 to 50) on running state.My Idea:...
View ArticleRE: BOOST-DRV8711: what is the response time of DRV8711 to reach position ?
Hi M.Sivakumar, The DRV8711 responds to the STEP input within ~2us. After that, there are too many unknowns to provide an answer, such as: the motor parameters (the inductance affects the time to reach...
View ArticleBOOST-DRV8711: what is the response time of DRV8711 to reach position ?
Part Number: BOOST-DRV8711Hi, How long time the DRV8711 took to execute step move?Lets take an example,Configuration: 16 - usteps, speed - 240 RPM with no_load, step_index input - 4. How long should...
View ArticleRE: BOOSTXL-DRV8323RS: Problem identifying using BOOSTXL-DRV8323RS board and...
Could you please refer to below post link which has some reference projects for DRV8323RS Boostxl board+F28027F/F28069F Launchpad?e2e.ti.com/.../635499 Make sure the registers configuration of DRV8323...
View ArticleRE: BOOSTXL-DRV8323RS: Problem identifying using BOOSTXL-DRV8323RS board and...
Hi Gary, Concerning the hardware side, I do find it strange the you see significant differences between the 8305 and 8323 boards. Spec wise the amplifiers are fairly similar. To summarize, you are able...
View ArticleRE: DRV8301: Vds sense circuitry working
Hi Shashank,How are you using the VDS monitor? Please note section 7.3.4.1 of the datasheet.The VDS monitor is not intended for precise current regulation.VDS is monitored when the FETs are enabled. If...
View ArticleRE: Stepper Motor Driver DRV8835 Voltage Problem
Hi Rick,Yes we are using a custom PCB. There is no short. Measured voltage using DMM. We will assemble another board. Also could you let me know if DRV 8835 is the best board for stepper motor control?...
View ArticleRE: DRV8301: Vds sense circuitry working
Rick,Thanks for the reply.Lets take a scenario, suppose i give high input at INH_X or INX_L pin then the IC would give high output at GH_X (VDD+GVDD) or GL_X (GVDD). As you said if VDS is exceeded for...
View ArticleRE: BOOSTXL-DRV8323RS: Problem identifying using BOOSTXL-DRV8323RS board and...
Thanks for the helpI tried different IDRIVEN settings with the DRV8323. I added the below IDRIVEN commands to the DRV8323 software. This did not seems to help....
View ArticleBOOSTXL-DRV8323RS: Problem identifying using BOOSTXL-DRV8323RS board and the...
Part Number: BOOSTXL-DRV8323RSI am trying to identify a small 8 pole motor and the Ls estimation seems to be very low.I am using the software provided in motorware for the DRV8323 and the only changes...
View ArticleRE: DRV8301: Vds sense circuitry working
Hi Shashank, The FET timing parameters are only part of the timing. The GL_x and GH_x source and sink current settings of the DRV8301 affect the slew rate of the FET. This in turn affects the RDSon and...
View ArticleDRV8301: Vds sense circuitry working
Part Number: DRV8301I am using DRV8301 to drive a 800W BLDC motor.I wanted to know how Vds sense circuitry work? (I mean all the concepts like Vds sense sampling rate, sampling time and how Vds voltage...
View ArticleRE: Stepper Motor Driver DRV8835 Voltage Problem
Hi John, The DRV8835 is a good choice. Another good choice is the DRV8846, although the size is larger. What is your system voltage? Did you create a supply solely for the motor? If you did, the...
View ArticleClik here to view.
RE: Stepper Motor Driver DRV8835 Voltage Problem
Thanks Rick. DRV 8835 is good. Our voltage is 5V. Current regulation is not a concern at this time.
View ArticleRE: DRV595: Differential Input
Hi Sukwon, Yes, the IN- needs to be biased at 3V in the application. The internal bias voltage on the input pins are 3V, so it's actually something like a reference volage. If you try to connect the...
View ArticleDRV595: Differential Input
Part Number: DRV595Hello-I am using DRV595 to drive TEC. In the datasheet, it says "To use the DRV595 with a single-ended source, use a voltage divider to bias IN- to 3.0V, and apply the single-ended...
View ArticleClik here to view.
RE: DRV10987EVM: GUI parameter file
Hi Cole,Yes, I still got the same error message every time when start up GUI and I also uninstall GUI then re-install again but still got the same message as below.Would you have other better...
View Article
