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/1659077/drv8378-drv8378-full-spec-samples-and-dev-kit-availability/6397347Sat, 27 Jun 2026 11:50:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:40570814-17e9-4089-bf1d-ae05b635a6d7Kostyantyn Koziy1Thanks for the quick response, Rajesh. Application: electronic suspension valve control using bldc motor, battery powered (2cell liion, 6-8.4V, 5A peak winding current).https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1659077/drv8378-drv8378-full-spec-samples-and-dev-kit-availability/6397344Sat, 27 Jun 2026 10:58:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:8eaeaa5f-8cda-469d-9df1-721ec6167435Rajesh ChauhanHi Kostyantyn, I will provide them on Monday. Regarding sample we have Pre Production samples and EVM available, could you please share more information about your application with us. Regards, Rajeshhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1646476/mcf8329a-what-s-the-i2c-address-for-the-mcf8329a-is-it-0x00-0x01-or-0x60/6397341Sat, 27 Jun 2026 09:35:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:036bcb94-83b2-420f-888e-e230ea82339dHuade HuoOur final application motor is a 24V, 20A pump. The back-EMF constant is 0.07196 V/rpm, with 2 poles.The calculated BEMF value is 2158.8, which exceeds the GUI setting range. How to do? Thank you.https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1646476/mcf8329a-what-s-the-i2c-address-for-the-mcf8329a-is-it-0x00-0x01-or-0x60/6397326Sat, 27 Jun 2026 07:00:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:3d945645-7e84-449d-9862-9a041c23cc4aHuade HuoThis is the startup failure waveform.https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1646476/mcf8329a-what-s-the-i2c-address-for-the-mcf8329a-is-it-0x00-0x01-or-0x60/6397324Sat, 27 Jun 2026 06:56:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:ea0115d9-cbb2-4cb4-bce5-e7546b86a2d8Huade HuoThe startup success rate is about 10%, but even when it does start successfully, the transition/switchover is not smooth either.https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1646476/mcf8329a-what-s-the-i2c-address-for-the-mcf8329a-is-it-0x00-0x01-or-0x60/6397312Sat, 27 Jun 2026 05:19:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:13fa940e-11b0-40a6-a180-c1418363073aHuade Huoe2e.ti.com/.../QQ_C6899198_20260627130957.mp4 Hi Dhinesh， Thank you for your prompt reply. We tested the attached updated tuning file and The motor still cannot work properly。 Thank you. Huadehttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1655805/mcf8329evm-current-waveform-distortion-and-jerk-during-open-loop-to-closed-loop-transition/6397310Sat, 27 Jun 2026 05:03:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:5b3c4f4d-d431-4044-b924-ef917c9821e8DhineshHi Aniruddha, Upon reviewing the shared tuning file, I have identified that the speed loop Kp value is high. Could you please update the register values listed below and subsequently verify the motor current performance? Additionally, could you please confirm whether the shared tuning file was generated using the SmartTune tool? CLOSED_LOOP3 = 0x1CC1153C CLOSED_LOOP4 = 0x2B881182 Thanks, Dhineshhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1646476/mcf8329a-what-s-the-i2c-address-for-the-mcf8329a-is-it-0x00-0x01-or-0x60/6397304Sat, 27 Jun 2026 04:30:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0f660e81-710a-47a0-b69c-339863c83dbcDhineshHi Huade, Upon reviewing the shared tuning file, I have observed that the alignment time is set to a very low value, and the open-loop current is also configured with a low setting. I have made adjustments to these parameters accordingly. Could you please test the attached updated tuning file and provide your feedback? e2e.ti.com/.../pump_5F00_updated.json Thanks, Dhineshhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658748/drv8243-q1-operation-when-nscs-is-set-to-open/6397271Fri, 26 Jun 2026 23:46:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:c7f71ebe-0b7f-44f7-8052-9201df63a586Shinya MoritaHi, Thank you for your questions. DRV/SPI communication does not work if nSCS will be pulled high. - SPI communication is MUST have. Need to have CLR_FLT command at least to wake the part. -nSCS toggle is required to do SPI communication. regards Shinyahttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658966/drv8899-q1-drv8899-sporadically-moving-into-wrong-direction/6397161Fri, 26 Jun 2026 21:06:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:781f65d0-bbc8-49ae-a2a9-29cb0f97d768Mojtaba AfsharHello Fabian, The motor rotation direction depends on the stator’s magnetic field, which can be verified by examining the phase relationship between the Phase A and Phase B currents. To better assist you, could you please provide current waveforms for both Phase A and Phase B? Additionally, could you provide the following information? STEP pulse frequency Motor supply voltage IFS current setting DIR signal switching frequency Once I have this information, I will be able to reproduce the setup and test it on our bench. Also, could you let me know whether you are using our EVM or your own custom board for testing? Finally, it would be helpful to understand the end application. Regards Mojtabahttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1659077/drv8378-drv8378-full-spec-samples-and-dev-kit-availabilityFri, 26 Jun 2026 20:31:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:0b9e6870-6c96-4e3d-8af1-9f0ff7148caeKostyantyn Koziy1Part Number: DRV8378 Good day, we are insterested in evaluating DRV8378 in our new product. Preliminary datasheet looks very promissing, however missing few key parameters - sleep current and wake up from sleep time delay. Could you pls suggest when this info will become available, when samples and dev kit can be ordered? Thanks.DRV8378https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1645031/drv8311-question-regarding-drv8311/6397090Fri, 26 Jun 2026 20:10:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:d612347f-7d67-4415-b15e-771c7bf34383Joseph FerriHi Frank, As long as this does not cause the device to reach it's thermal limit, it can support 2A continuous. Thanks, Josephhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1659073/drv8231a-date-code-for-restart-fix-slvag26Fri, 26 Jun 2026 20:07:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:1f8cebfd-6b87-425e-99ca-16fea8cf4fe1Chris MyersPart Number: DRV8231A I have two sets of boards (from two different asssembly houses). One set has a couple of boards (out of 10) exhibiting the EXACT restart problem described in Application Note SLVAG26. The other set of boards hasn't shown this problem. Each set of boards have DRV8231A chips with different date codes (TI48M and TI58M). Can you tell me the starting date code for the fix that was described in the ap note ("...TI added deglitch circuits inside IN1 and IN2 to improve anti-interference capability")? Thank you.DRV8231Ahttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658973/drv8353rh-evm-schematic-review/6397087Fri, 26 Jun 2026 20:06:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:7d4005f4-98b0-47e0-bd6b-12300cfc07d8Joseph FerriHello, Can you provide more information on the test conditions? Are you enabling the device? Are any faults occuring? Thanks, Josephhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658336/drv8353-could-you-issue-a-classification-determination-document/6397085Fri, 26 Jun 2026 20:04:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:f0202ba4-fa04-42cc-a5d9-782e91fc30cfJoseph FerriHello, I am reaching out to someone from the sales team who can help. Thanks, Josephhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658791/drv8214-drv8214-open-source-arduino-esp32-stm32-rp2040-i2c-library/6397075Fri, 26 Jun 2026 19:54:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b662e79e-7310-4643-b011-ea316b50523aYuzhou YaoHi Theo, We really appreciate that you provided this to the community. Have a nice day! Best, Yuzhouhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658980/drv103-peak-current-output/6396958Fri, 26 Jun 2026 17:23:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:63ec20bd-b377-4aca-8059-4d1b6871d0b7Mojtaba AfsharHi Mauel, Thank you for reaching out to us. if the current exceed 3.75, the over current protection will disable the output. Also, this is an old device. Please check our solenoid driver or our BDC driver to control the solenoid using link below. Solenoid drivers | TI.com Brushed DC (BDC) motor drivers | TI.com Please let me know if you have any questions. Regards Mojtabahttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658980/drv103-peak-current-outputFri, 26 Jun 2026 12:48:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:765a389d-ec96-4953-9ede-eac433f3f0b2Manuel ValenzuelaPart Number: DRV103 I have a question regarding the maximum current output that the DRV103H can handle. The datasheet states that the maximum peak current output is between 3 and 4.2A, 3.5A nominally. I I have a solenoid that requires 3.9A for 15ms and then gets dropped down via PWM, would there be a scenario where the output current would fall to 0A? Is the 3A to 4.2A a tolerance range, meaning some DRV's might come at 3A, and some at 4.2A? Or is this a case where the 4.2A is the maximum for all devices provided. Please advice.DRV103https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658973/drv8353rh-evm-schematic-reviewFri, 26 Jun 2026 12:15:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:65a399c0-55c2-46c5-a41c-d7f4df99a72cTI-CSCPart Number: DRV8353RH-EVM Hello E2E Experts, I am using only the DRV8353RH gate driver IC and am not getting an amplified PWM output when applying a 3.3 V PWM input signal. The hardware connections are as follows: VM = 22 V, with 10 µF and 0.1 µF decoupling capacitors connected between VM and GND. CPH–CPL capacitor = 47 nF. VCP–VDRAIN capacitor = 1 µF. DVDD–DGND capacitor = 1 µF. VGLS–GND capacitor = 1 µF. All capacitors are X5R type and are connected according to the datasheet recommendations. I am operating the device in Independent PWM Mode. The VDS, IDRIVE, and MODE pins are connected to DVDD. Regards, TICSCDRV8353RH-EVMTest & Measurementhttps://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/1658966/drv8899-q1-drv8899-sporadically-moving-into-wrong-directionFri, 26 Jun 2026 11:59:00 GMTcb01d8b2-d089-468d-babb-77d1d8683490:b89effb0-f7fa-4ff2-8e6d-2c6c30322222Fabian ZeulnerPart Number: DRV8899-Q1 Hello, I am using a DRV8899 in full step mode, CTRL with EN, DIR, STEP. no SPI interaction, SPI never used, so chip is in default configration. sometimes I see motion into the wrong direction. see image attached. I already made sure that timing, and settle time for signals is good, DIR is assigned 20us before we toggle STEP. the measurement in the picture are the direct PINs of the DRV8899 and a motion measured with an analog gage. Any Idea where this issue can come from? I am running out of ideas. Igonore the missing motion at the beginning, we did start out of range of the position gage. you can also see that if its moving in the wrong direction, its dooing it with 2x the speed. but the STEP tick speed did not change. could that be an issue with magnetic fields of the coils and the stepper snapping into the wrong field? (I am not a stepper expert, so just guesses)Industrial AutomationDRV8899-Q1