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  • DRV8311: AGND vs PGND Confusion

    Resolved
    Part Number: DRV8311 Tool/software: Hello, I am using a battery powered DRV8311P in a motor control application. In my board layout, I am planning to keep PGND and AGND on different ground planes and then connect them near the battery 0V. The datasheet…
    • Resolved

  • DRV8311: Arduino (or similar) code example to control BLDC motors with tSPI

    Part Number: DRV8311 Tool/software: Hi Ti Team, We're testing use of the DRV8311 for open loop control of small BLDC motors (like a 1503, 1104, both 2750kV small hobby motors, very low phase-to-phase resistance, order of 1 ohm, running at 3.7V). …
    • Answered

  • DRV8311: If inrush current will impact the reliability

    Resolved
    Part Number: DRV8311 Tool/software: Hi team, Below waveform is measured at motor start-up period. It is the phase A current. You can see the peak is about 2.75V which represent 7.5A. At the beginning, the OCP threshold was set to 5A. They found the motor…
    • Resolved
    • Answered

  • DRV8311: Application issues.

    Resolved
    Part Number: DRV8311 Tool/software: Hi Team, Using DRV8311P. Using the tSPI protocol for register reading and writing, it was found that the written data is inconsistent with the read data 1) NSLEEP pull down ->pull up 2) PWM_SYNC ->Pull up 3) Register…
    • Resolved

  • RE: DRV8311: Input Signal INHA/B/C for 3x PWM Mode

    That is a very good presentation! I don't have anything better.

  • DRV8311: Application issues.

    TI Thinks Resolved
    Part Number: DRV8311 Tool/software: Hi Team, use DRV8311. 1. Can you provide a driver for DRV8311 for LINUX? 2. Is there a process document for configuring DRV8311 registers?
    • Answered

  • RE: DRV8311: Correct de-coupling capacitance required if the internal LDO is not utilised

    Resolved
    Hi Joshua, For an application using the nSleep pin to enable/disable the device I agree with your point about inrush and potential rail sag when the chip is enabled. In our case the device is always enabled so VIN_AVDD will come up at the same time as VM…

  • RE: DRV8311: The OUTx issue and schematic review

    Hi Zhang, It appears that this Hall sensor provides a total angular error of 1 degree with dynamic compensation in the XY magnetic axis. The precision of the motor control from the DRV8311 will depend on both the precision of this Hall sensor and the…

  • DRV8311: How I have to set the registers to get a Bldc motor with tspi and internal Pwm-sinals to turn

    TI Thinks Resolved
    Part Number: DRV8311 Tool/software: Hi Experts, I have a problem with the DRV8311P bldc driver. I'm using the tSPI protocol and it works fine, but I can't get bldc to work so I get 120° phase shifted pwm. I just wanted to know how I have to set the registers…

  • DRV8311: DRV with integrated CSA and safe 24V operation

    TI Thinks Resolved
    Part Number: DRV8311 Other Parts Discussed in Thread: DRV8316C Tool/software: Is there a part similar to DRV8311 feature-wise, but that can run safely on 24V? most parts in that power category has a 20V limit (abs max 24V..), problem with 20V is that…

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