RE: DRV8840 as Peltier Controller (12V,3A)
Hi Vaibhav, The PHASE and ENBL pins are used to control the PWM. Typically, the PHASE pin is set for the current direction and ENBL pin is PWM'ed. We are not familiar with the requirements of peltier...
View ArticleRE: DRV8840 as Peltier Controller (12V,3A)
(Please visit the site to view this file)I have attached datasheet here. Please suggest. It is customized type peltier. Thanks
View ArticleRE: DRV8307 PWM DUTY
Hi Mason,[quote user="Mason Noh"]1. PWM duty cycle range (datasheet: 0~100%) what is minimum duty for stop? and maximum duty(recommended condition)?[/quote]Can you clarify this? Are you asking what...
View ArticleDRV8307 PWM DUTY
HII have some question about PWM of DRV8307.1. PWM duty cycle range (datasheet: 0~100%) what is minimum duty for stop? and maximum duty(recommended condition)?2. datasheet: If it is changed while...
View ArticleRE: DRV8840 as Peltier Controller (12V,3A)
Hi Viabhav, The DRV8840 can control this device. The best approach evaluate the performance with a DRV8840EVM.
View ArticleDRV8840 as Peltier Controller (12V,3A)
I am planning to use DRV8840 as peltier controller of rating 12V,3A. Is this good option to go with DRV8840?I CHOP is 5A, with Rsense = 100 mOhm, Vref = 2.475What extra precautions should i take if i...
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RE: DRV8711 Register Optimization
Hi Rick,Okay I think I have screenshots of what you're requesting. I repeated this multiple times, but moving in increments of QTY=4 microsteps (1/4 microstepping). This should guarantee that I hit the...
View ArticleRE: DRV8301-69m Sine Wave
Hi Jesse, Are you looking at the output voltages of the phases? This will be square waves of varying duty cycle. If something else, can you provide additional information such as scope captures?
View ArticleDRV8301-69m Sine Wave
Hello, I have a custom motor and DRV8301-69M setup. I have been able to successfully spin my motor using the Motorware labs but have noticed when using my oscilloscope that it is being driven through...
View ArticleRE: DRV11873 direction control
Hi Adesh, The 300us is a minimum. Yes, you can reverse motor if you pull PWMIN low for a minimum of 300 or 600us (depends on FS), change FR and then start the PWMIN input again.
View ArticleDRV11873 direction control
Hello, I am really confuse about direction reverse feature of drv11873 because in datasheet there is given that if FS=0 pwmin should be low for 300us. should that 300 us exact or minimum 300 us? can i...
View ArticleRE: Conducted Emission compliance of design using DRV110.
Dear Ramon,Thank you for the inputs. I will try the same and get back to you. As I am conducting the test at an external laboratory, I need sometime to update you with my findings.Thanks...
View ArticleRE: BoostXL-DRV8301 Current Sensing direction
Hi Mohamed,Please refer to section 5.2.1 of this document for details.
View ArticleRE: DRV8711 Register Optimization
Hi Rick, 1) Fair question about ..."do you think the stall should have asserted on the zero cross step?" ... Short answer is I'm not sure... All I know is I've re-hit the END-STOP by enough varied...
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RE: BoostXL-DRV8301 Current Sensing direction
Dear Sir,I have read the document very well, it uses libs that i dont understand to get the current.I dump the data in an array during the run time , then i plot itso i choose phase C then i plot the...
View ArticleBoostXL-DRV8301 Current Sensing direction
I would like some help understanding the parameters of the BoostXL-DRV8301 .which a BLDC motor driver(three phase)I want to sense the direction of the current (in or out).what should i do , i can only...
View ArticleRE: Chopping current of DRV8880
Hi Kiyoung, TRQ allows changing the Ifs chopping current from 100% to 25%. This is generally used for holding currents, when the motor is stopped. The Ifs is the maximum current (100%) in the indexer...
View ArticleChopping current of DRV8880
Dear sir.equation about 18 pagehttp://www.ti.com/lit/ds/symlink/drv8880.pdfTRQ is the percentage value in the datasheet.Is TRQ ratio value ?plz help me.
View ArticleRE: DRV10970 - Sinusoidal output & speed variability
Hi Dave, Our experts have been notified and should reply soon.
View ArticleRE: TPL7407L - Some questions
Hi Matsumoto-san, Our experts have been contacted and should reply soon.
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