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  • DRV8311: The technology issue for DRV8311

    TI Thinks Resolved
    Part Number: DRV8311 Tool/software: Hi, We use the DRV8311 for our BLDC drvier, and now, the SOC pin is the below waveform and there are no c omplete sine wave, but the motor spec. is normal, So please advise if this wavform is right or not? thanks…

  • DRV8311: Application issues.

    Part Number: DRV8311 Tool/software: Hi team, According to the specification sheet, during the falling edge of the PWM_SYNC synchronization signal, the upper bridge HS is closed and the lower bridge LS is open, and the U-phase should be at a low level…

  • DRV8311: Application issues.

    TI Thinks Resolved
    Part Number: DRV8311 Tool/software: Hi Team, PIN7 has a 5V input, PIN2 has a 3.3V input, and PIN8 has a 20V input. INHA, INLA, INHB, INLB, INHC, and INLC have square wave signal inputs. But there is no voltage output of 3.3V on pin 17, and no signal…

  • DRV8311: Schematic Review

    TI Thinks Resolved
    Part Number: DRV8311 Tool/software: Could you help to review the schematic?

  • DRV8311: BLDC Motor Position Control

    TI Thinks Resolved
    Part Number: DRV8311 Other Parts Discussed in Thread: AM62A7 Tool/software: I would like to control the motor position using DRV8311 motor driver in AM62A7. The application is gimbal motor control. The motor rotation radius is 160 degrees. Please…
    • Answered

  • DRV8311: No Output on OUTx Pins

    Resolved
    Part Number: DRV8311 Tool/software: Dear Support Team, We attempted to drive a BLDC in open-loop using an external MCU and the DRV8311H, but were unsuccessful. Although we applied power to the circuit and supplied INHx signals, we observed no change…
    • Resolved

  • DRV8311: Charge pump wont start - Schematic Review

    Part Number: DRV8311 Tool/software: Hello, I’m using a DRV8311H to drive a three‑phase BLDC. My problem is that the CP pin never charges—it sits at about VM–0.4 V no matter what I try, and nFAULT stays low. Here’s what I’ve done so far: VM rail…
    • Answered

  • 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
    • 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

  • 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?

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