https://e2e.ti.com/support/motor-drivers-group/motor-drivers/Products covered in this section are TI's DRV family of motor drivers. Learn more at www.ti.com/motorcontrol.en-USTelligent Community 13https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643580/launchxl-f28069m-instaspin-foc-drv8323rscompatibilityThu, 07 May 2026 15:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8f007fdf-c426-481e-9a01-47c6bbc51d9fCedric CuypersPart Number: LAUNCHXL-F28069M Other Parts Discussed in Thread: MOTORWARE Dear, We are trying to get started with the instaspin-FOC launchkid with the DRV8323RS booster. We are getting issues building the proj_lab02b project in CCS with the error error #20: identifier "angle_gen" is undefined. However, we cannot seem to find the proj_lab02 base project or where we could get this module from. We already tried re-instaling the MotorWare software and added the specific packages for the 8323RS board. Could you please provide the modules, or alternatively specify the minimum requirements to get rid of these errors and get a motor spinning with this launch kid and booster. Kind regards, CedricLAUNCHXL-F28069MMotorwareAerospace & Defensehttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1641162/drv110-drv110-incorrect-frequency/6336549Thu, 07 May 2026 15:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:306719d0-3061-4c69-93c8-6c1fa034de28Enrique de Nicolás LumbrerasHello Mojtaba, Thank you for your kind response. I recalculated both the MOSFET gate resistance and the current-limiting resistor, and they appear to be correct. I also tried reducing their values to see if there would be any change, but the behavior remains similar. Here is what we know so far: With the previous relay, the DRV110 works as expected. With the relay that has higher inductance, the regulation does not behave as intended. The only difference between the setups is the relay itself. However, there is another interesting observation: I have several relay drivers on the same board, and they do not all behave in the same way. Here is the Vout from two different relay drivers: Both channels show a duty cycle of 100% for several cycles, followed by a few cycles at the minimum duty cycle. Interestingly, one of the relay drivers allows the coil current to drop more than the other. What do you think could be causing this difference? It might be related to a very slow current variation. Could you provide the regulator’s hysteresis values? Additionally, it could be related to noise on the SENSE pin. I tried adding a filter (1 kΩ + 100 pF), but there was no noticeable change. Best regards, Enriquehttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643393/drv8844-repowering-of-vm-when-not-supplied/6336534Thu, 07 May 2026 14:54:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:2fd9dc32-48a9-4eac-a987-d3a101dd0b96Mojtaba AfsharThank you for the update. regards Mojtabahttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643393/drv8844-repowering-of-vm-when-not-supplied/6336389Thu, 07 May 2026 13:22:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cdc327d4-9b67-464a-983b-fe6889fb9d9fClément LetonnelierPlease forget about this issue is coming from another stage of the design.https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643273/drv8899-q1-question-about-spi/6336387Thu, 07 May 2026 13:21:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:4ff2e62d-af0c-4091-8e61-d9c4e35ba38eMurugavel4637Hi Jay, The below table has a typo. This is not a MAX value, it must be in the MIN position. We're updating the datasheet as we speak and will be released on the web. The below has a typo as well. We're updating the datasheet as we speak and will be released on the web. [quote userid="494975" url="~/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643273/drv8899-q1-question-about-spi/6335744"]expect for more SCLK pulses than are required or SCLK is absent even though nSCS is low, what will make SPI_ERROR assign?[/quote] Both more SCLK than 16 or less SCLK than 16 for one SPI frame will trigger the SPI_ERROR flag. Thank you. Regards, Murugavelhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1642705/drv8245-q1-appplication-question/6336384Thu, 07 May 2026 13:16:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e8d6c677-8872-4fd9-b3df-5b5c96ed0887Murugavel4637Hi, This test case must not be used. It will destroy the DRV8245, also a risk of fire hazard due to short circuit with potentially high current. Thank you. Regards, Murugavelhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643276/drv8962-drv8962ddvr-output-power/6336371Thu, 07 May 2026 13:08:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:e445506a-f147-4c3d-9da5-58becf19954fMurugavel4637Hi Ishiwata-san, [quote userid="388934" url="~/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643276/drv8962-drv8962ddvr-output-power"]What is the actual power limit for operation?[/quote] This depends on several factors: The ambient temperature Ta, forced cooling of the heatsink with a fan or still air cooling of the heatsink, conduction losses, switching losses, continuous quiescent current of the driver. You can plug-in these values in the formulae given in the datasheet section 8.1.1.2 Thermal Calculations and see if the estimated die temperature would exceed TSD (thermal shutdown) limit for the device. The device does not have a specific power limit per se. That said, a very similar driver in DDV package the DRV8462 was tested with 48 V, 10 A full-scale current setting. See below thermal image. This was with Ta = 25 °C, still air, EVM heatsink. Note, this was the heatsink temperature not the die temperature. This amounts to about 480 W of drive. We tried with 52 V, the device hit TSD. With fan cooling it could support for longer durations without TSD. I hope this gives you an idea of usable load power driving capability for a specific heatsink and associated thermal conditions. Thank you. Regards, Murugavelhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643439/drv8245-q1-vvmuv-and-recommended-operating-rangeThu, 07 May 2026 10:24:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7859f095-2d76-4a8e-8c2a-b666d326dc0cShinji TsujiPart Number: DRV8245-Q1 Hi team, It looks VVMUV and recommended operating VM range minimum is overlapping at 4.5V. If VM is exactly 4.5V, there is a possibility to detect VM undervoltage and disable OUT pin? Could you please advise how should I interpret this specification? If there is a possibility that the device OUT pin becomes Hi-Z at VM=4.5V, Could you please give me a distibution curve of the undervoltage detection threshold? regards,Chassis control & safetyDRV8245-Q1https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643395/drv8353r-response-to-hall-errorThu, 07 May 2026 09:20:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:125e0691-b4a0-4d0b-8aca-ada69aa1883dAaron JungreisPart Number: DRV8353R I am analyzing single-event upset events and their effect on the DRV8353R. If I am using in the 1x PWM mode, what will happen if one of the motor hall effect outputs is always high? Will I get a fault and the drive will stop running, or will there be an error on which gate drives turn on and no fault reported?DRV8353RAerospace & Defensehttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643393/drv8844-repowering-of-vm-when-not-suppliedThu, 07 May 2026 09:15:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:2355353d-78f0-41f3-8022-b565d57eb1eeClément LetonnelierPart Number: DRV8844 Hello, In our design, VM is not supplied at the power-up of the board but the logical side is. It seems that there is a repowering of VM through either NRESET or the EN/IN pins in that condition as we observe about 2.7V on VM, introduced by the DRV8844 on that rail. I didn't see anything related to that in the datasheet or issue with what we did schematic wise. Do you have any explanation? Thank you, Best regardsDRV8844Aerospace & Defensehttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1632410/voltage-control/6336100Thu, 07 May 2026 09:13:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:93311ea8-ceb9-4a63-bd89-3213040358faDean MichalIs there any response yet?https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643345/drv8343-q1-input-offset-error-at-5v-vrefThu, 07 May 2026 08:12:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:eac25d3e-e699-4850-8fa4-0419638f8431Frank QINPart Number: DRV8343-Q1 Hi Team, According to the DRV8343 datasheet, the input offset error range is mesured at Vref=3.3V. While we would like to check what is the input offset error at 5V? The system voltage on our board is 5V. Thank you! Regards, FrankDRV8343-Q1Body Electronics & Lightinghttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1642726/ucc28730-q1-defective-component-causing-active-discharge-rail-voltage-being-out-of-spec-ucc28730qdrq1/6335853Thu, 07 May 2026 06:18:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:204a55ba-7fad-4b4d-8a72-94311332b1e7ROHAN SHAHHello I am looking into it and get back to you with some information. May i know what is limit for active discharge rail voltage ? Regards Rohanhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643292/drv3256-q1-pcb-fileThu, 07 May 2026 05:52:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ea1efd8e-1321-41a9-a0b1-07152545b680Brian Wang0928Part Number: DRV3256-Q1 Team, I'd like to get the .Schlib and .Pcblib file for the designs. Could you kindly support them?Industrial AutomationDRV3256-Q1https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643290/drv3263-q1-package-typeThu, 07 May 2026 05:47:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:95ad46ac-5762-44b2-aae4-81cc00984051Brian Wang0928Part Number: DRV3263-Q1 Team, In the d/s, it mentioned that package could be QFN or VQFN or HTQFP. We're confused about it. Is VQFN package correct? Could you update the d/s! One more, how to get the .SchLib and .PcbLib files for Altium ? Regards BrianIndustrial AutomationDRV3263-Q1https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643273/drv8899-q1-question-about-spi/6335744Thu, 07 May 2026 04:45:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:650e13f2-82f2-4676-a724-ebec4aba9c7aJay wangadd another question: expect for more SCLK pulses than are required or SCLK is absent even though nSCS is low, what will make SPI_ERROR assign?https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643276/drv8962-drv8962ddvr-output-powerThu, 07 May 2026 04:02:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:76e72caf-d88d-4b52-ac4f-a86018a30b84Shuji IshiwataPart Number: DRV8962 Other Parts Discussed in Thread: DRV8462 Hi All, What is the usable power output of the DRV8962DDVR or DRV8962VEVM? For example, is it possible to operate it at 65V and 10A? What is the actual power limit for operation? I understand it depends on the heat dissipation measures, but it would be helpful if you could tell me, for example, how much power output is possible with certain heat dissipation measures. Best Regards, IshiwataDRV8462DRV8962VEVMDRV8962Test & Measurementhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643273/drv8899-q1-question-about-spiThu, 07 May 2026 03:39:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b1a3901c-77f4-49d5-b8b4-9df2fe5577c3Jay wangPart Number: DRV8899-Q1 hi expert how to understand the following two parts in our datasheet. it seems that they are conflict each other. thanksBody Electronics & LightingDRV8899-Q1https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1642195/drv2700evm-external-control-burns-drv2700devm/6335702Thu, 07 May 2026 03:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:08956036-6f5e-484f-8bf0-3e562fd93737Hailong ChenBased on your description and the behavior of the DRV2700EVM , the issue is likely that your 50nF piezo load, combined with the 1100Hz frequency and ~900ms drive time, is causing the chip to exceed its maximum power dissipation (thermal overload) or causing an inrush current that destroys the output stage. You mentioned the board shorted to ground ( Verified by ~0 resistance from JP2 to GND) . This strongly suggests the internal high-side or low-side FETs in the fully differential amplifier have failed shorted due to thermal runaway. At ~1100Hz, a 50nF load requires a substantial amount of current (Power = f*C*V^2). If the boost converter cannot keep up, or if the duty cycle is too high, the internal power diode or the amplifier stage will fail. Yes, you should highly consider using the DRV2700EVM-HV500.Why: The standard DRV2700EVM is a boost converter (max 100-200Vpp). The HV500 uses the DRV2700 in a flyback configuration, which is designed to provide better power handling for larger capacitive loads.https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1643199/drv2700-part-parameters/6335697Thu, 07 May 2026 03:28:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:cc72a0cc-b707-41bb-9c5b-78c480c1046eHailong ChenThe maximum output frequency for the DRV2700 is 20 kHz.The DRV2700 features an integrated 105-V boost converter. The maximum boost current is limited by the external resistor R_ext and the inductor saturation current. To achieve 105V, an efficient design should use a smaller Rext for a higher current limit, but the total load current is limited to a few milliamps at high frequency. The booster cannot sustain high-current, high-frequency signals at full voltage simultaneously.