RE: DRV8301, working well at first, then go to fault: GVDD_UV
Hi user1416086,Thank you for the layout. It appears your troubles may be associated with the layout.This layout shows long ground loops for the regulator capacitors and a single metal trace connecting...
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DRV8301, working well at first, then go to fault: GVDD_UV
HelloI made a board as DRV8301 kit.My DRV8301 board can output PWM signals when the chip of DRV8301 is paded, but then begin to fault, the status register said : GVDD_UV.I change the DRV8301 with a new...
View ArticleRE: DRV8305 VDS Sense Control (0xC) RSVD Bits
Hi Macs-san, Sorry for the delay. I am still researching this question.
View ArticleRE: DRV8305 VDS Sense Control (0xC) RSVD Bits
Hi Macs-san, There is no problem related to the RSVD bits in register 0xC. The value read from these bits should be ignored.
View ArticleDRV8307 LOCKn active
At what speed is DRV8307 declaring LOCKn signal?Additionally, how long should the speed be constant before the LOCKn signal goes active?There is no mention of these two facts in the DRV8307 datasheet...
View ArticleRE: DRV8307 LOCKn active
DDC, good observation that the DRV8308 has more detailed info. The DRV8307 effectively has a 12.5% speed threshold (SPEEDTH) and requires 4 Hall_U periods to lock. The HALL_U frequency must be faster...
View ArticleRE: DRV10983-75 application issue
Hi Kevin, We will notify the experts on the GUI. While waiting have you tried changing the LabVIEW RTE to run in Windows 7 compatibility mode?
View ArticleDRV10983-75 application issue
I have a DRV10983EVM Developer Kit and am having trouble getting the computer software (DRV10983-75) to run. It will open, but none of the menu buttons work in the GUI, and when I click 'run' I...
View ArticleRE: DRV8301, working well at first, then go to fault: GVDD_UV
Thanks for your reply.It may be the PCB layout which lead this problems. I have lead a thick wire from the bottom of the powerpad holes to the GND, but it can not solve this problems.My be , I have to...
View ArticleRE: DRV8305 VDS Sense Control (0xC) RSVD Bits
Hi Rick-sanThank you for your support. Very much appreciated.Macs
View ArticleRE: PWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel...
Hi Duncan,DRV8432 is in PFB mode to drive a TEC upto 12A @ 24V. Used the 24kohm resistor as OC_adj. It is referring Table:2 in datasheet the maximum current before overcurrent occurs is 10.7A. Could...
View ArticleRE: PWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel...
Hi, Sorry for the incomplete thread. It showed a nFAULT for 6A current @ 15V for a few seconds. It means it is showing Overcurrent at 6A( OC_adj = 24Kohm - 10.7A) itself why it is malfunctioning. Any...
View ArticlePWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel full...
Hello,I am working on a PWM polarity inverting circuit for TEC module with 24V power supply, 1 TEC requires 12A driving current in total. so I am using DRV8432 in Parallel full bridge mode with my...
View ArticleRE: DRV8307 LOCKn active
Many thanks for your prompt reply. I have two more questions: - When does the DRV8307 come out of a LOCK state? Is it when the frequency drops below 2Hz - 12.5% or is it something else (additional...
View ArticleRE: DRV8885 - VRREF exceeding 1.28V when controlling IFS using a DAC
Hi Kawai-san, What is the maximum voltage the customer is concerned about? We will check and reply soon. T
View ArticleRE: Asking fot tht DRV8818 stop current waveform comment
Hi Scott, The biggest risk is loss of position. Stepper motors are open loop systems, and stopping without decelerating can create conditions where the motor position is unknown for the next move....
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Asking fot tht DRV8818 stop current waveform comment
Hi Team,The customer application try to stop the step motor without deceleration. Customer stop the step signal suddenly and get the current waveform as attached file. The end of current had...
View ArticleRE: DRV8701 want to know the input.
Hi user4705198, I am sorry, but the message did not translate properly. Would you please ask someone to write the post in English? I will work on finding someone to translate the original post here....
View ArticleDRV8701 want to know the input.
DRV8701 report that listed in TABLE2 PAGE14 of the data sheet, if the input to PWM,FORWORD operation of the motor when,IN2 input 0 (LOW),PWM input to IN1,REVERSE operation of the motor when,IN1 to 0...
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