RE: DRV8701: MOSFET Failures
Hi Mat, What FETs have you used? What type of thermal protection (heat sink or thermal sensor) is being used to protect the FETs? Have you placed a small cap (10nF) from the drain of Q4 to the source...
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DRV8701: MOSFET Failures
Part Number: DRV8701Hi,I have been having a few issues with the MOSFET failures that I believe Vref should be protecting against.Setup:-24V 24.5A BDC Motor-24VAC Â toroid rectified to 34VDC high current...
View ArticleRE: BOOSTXL-DRV8301: 2nd quadrant operation from single quadrant power supply
Hi Steven, Our experts have been contacted and should reply soon. While waiting, this may be of interest: e2e.ti.com/.../575479
View ArticleBOOSTXL-DRV8301: 2nd quadrant operation from single quadrant power supply
Part Number: BOOSTXL-DRV8301Hi,I would like to use the F28069M kit in combination with the BoostXL-DRV8301 for 2nd quadrant operation (in generator mode). The motor of this kit will be coupled to...
View ArticleRE: DRV110: Current unexpectedly changes with voltage to solenoid
Hi Travis,We replaced the FET with this one (4.6nC gate charge):FET selection link It clearly made the transitions sharp and fully formed.  However, it did not change the fact that the current changes...
View ArticleRE: How to rotate BLDC motor Counter-clock wise which is bundled with...
You only need to change the commutation sequence based on hall sensor input (Hall Sensored Control) or BEMF zero cross point (Sensorless Control), like the commutation sequence for clockwise is (V+/W-,...
View ArticleRE: DRV8305-Q1: Reverse Supply Protection of DRV8305-Q1
Hi Michino-san,I apologize for the delay. To answer your question, under reverse supply, all the pins would be referenced by the voltage supplied to GND (since supply is reversed).Then the pins would...
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RE: DRV8305: nFAULT at startup of DRV8305
Hi Michino-san,I apologize for the late response.Could you please provide PVDD ramp rate? Also, before pulling EN_GATE high, can you try to read when nFault pin in the toggling condition? what does the...
View ArticleRE: DRV8305-Q1: Reverse Supply Protection of DRV8305-Q1
Hi, Luis-san,Thank you very much for your reply. I understood it.And I answer it to the customer.Thanks, Masami M.
View ArticleDRV8305-Q1: Reverse Supply Protection of DRV8305-Q1
Part Number: DRV8305-Q1Dear, AllI would like to confirm the operation of Reverse Supply Protection.Have you determined that Reverse Supply has occurred when the VDRAIN pin rises by the specified...
View ArticleRE: DRV8305: nFAULT at startup of DRV8305
Hi, Luis-san, Thanks for your support. Please wait for a while as we will check with the customer. Thanks, Masami M.
View ArticleDRV8305: nFAULT at startup of DRV8305
Part Number: DRV8305Dear, AllCustomers are evaluating using DRV8305.A phenomenon occurred in which pulses of the nFAULT signal continued to be output while EN_GATE was turned on after the supply...
View ArticleRE: DRV8308: tune the registers
Hi Phil, We have a motor consuming about 2A at 3000rpm with no load connected. It is too much I have been tunning the registers in order to make this consuption lower unsuccessfully. Is there any...
View ArticleDRV8308: tune the registers
Part Number: DRV8308Hi everybody,I am working with a DRV8308 and i have achieved to make it work quite well, but still want to solve an issue which happens at low speeds.I am controlling a motor which...
View ArticleRE: BOOSTXL-DRV8301: 2nd quadrant operation from single quadrant power supply
Hi Rick, Thanks I look forward to hearing their response. Unfortunately that article, though interesting doesnt help me with this question.
View ArticleRE: DRV8825: Oscillations on Motor driver IC output
Hi Raju, What decay mode are you using? Can you try fast decay? Would you please explain why channel 2 goes to -12V in the simulated load?
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DRV8825: Oscillations on Motor driver IC output
Part Number: DRV8825Hi,We are using DRV8825 IC for driving Peristaltic Pump which is having stepper motor. We designed one fixture to simulate the motor with equivalent inductor and resistance.When we...
View ArticleRE: DRV8301: DRV8301 Lock-Up Issue
Phil,Have you had a chance to look at the request above?Can you give a time frame as to when you might be able to provide the information?Thanks for your help with this!Richard Elmquist
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DRV8301: DRV8301 Lock-Up Issue
Part Number: DRV8301My customer is seeing the following issue and I do not understand how this can be happening:We are using the DRV8301 in our product, and recently we had a request from a customer to...
View ArticleRE: DRV110: Current unexpectedly changes with voltage to solenoid
Matt,Can you replace the link for your FET? I cannot access the website with the link you posted. Do you have a current probe? We would be able to deduce a lot about the behavior of your circuit with...
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