DRV8841: DRV8841 OCP issue
Part Number: DRV8841Customer use DRV8841, meet OCP issue, the design follow DRV8841EVM. The max current through the motor is 1.3A, Risense is 0.36, Vref is 2.5V, so Ichop = 2.5/(5*0.36)=1.389A....
View ArticleRE: DRV8302: What is the bw for the current shunt amps when the gain is 40v/v
Hi Jeff, We will investigate and reply soon.
View ArticleRE: DRV8302: What is the bw for the current shunt amps when the gain is 40v/v
Alright Jeff,Let's see here:Do you mean for the internal current shunts of the DRV8302 or the external one of the EVM?If it is an EVM, is it this board?http://www.ti.com/tool/drv8302-hc-c2-kit
View ArticleDRV8302: What is the bw for the current shunt amps when the gain is 40v/v
Part Number: DRV8302Hi Support teamCustomer is asking what the bw is on the shunt amps with gain set to 40v/vThanksJeff Coletti
View ArticleRE: DRV8302: What is the bw for the current shunt amps when the gain is 40v/v
Hi Hector the internal amps in the DRV8302 Thanks Jeff
View ArticleRE: DRV10963: using part to drive HDD platter motor
Can someone please tell me what the register configuration settings of the device I have is? Supplier label says drv10963DSNR and the device is marked 10963B. I also need to know how many of the OTP...
View ArticleRE: DRV10963: using part to drive HDD platter motor
Hello,Please follow the tuning guide www.ti.com/.../slau643.pdf, you would need only couple of devices since you can run motor using shadow register and once you are satisfied, OTP can be...
View ArticleRE: DRV10983EVM: Motor velocity constant
Hi Anders, Do you see any problem running motor with load ? You can use same velocity constant as long as you are able to support load and spin motor. Regards, Krushal
View ArticleRE: DRV10963: using part to drive HDD platter motor
Thank you Krushal. That makes better sense. So it looks like the EVM allows me to test different settings without actually programming a device. However, I am still interested in knowing the setting...
View ArticleRE: DRV10963: using part to drive HDD platter motor
Hi, Check this post : e2e.ti.com/.../1782865 Regards, Krushal
View ArticleRE: DRV10963: using part to drive HDD platter motor
Thank you. There was no mention of this version in the datasheet.
View ArticleRE: DRV8302: What is the bw for the current shunt amps when the gain is 40v/v
Alright Jeff, We find that we can approximate 10MHz for a SR = 10 V/us.Also, if we look at page 14 of the data sheet we can calculate the output of the current shunt amplifiers and note there is no...
View ArticleRE: DRV8860: DRV8860 output channels question
Hi Rick, thanks a lot for your quick response.
View ArticleRE: DRV8305-Q1: driver has abnormal waveform
Hi Haiwan, Can you provide more information of the scope captures? What is Channel 1, 2, 3, and 4 in each scope capture? Does each pair of output FETs have the same operation? If it is just one, what...
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DRV8305-Q1: driver has abnormal waveform
[View:/cfs-file/__key/communityserver-discussions-components-files/38/New-folder.zip:1230:0]Part Number: DRV8305-Q11-They found DRV8305-Q1 driver isn’t steady, seems has low frequency stack in the...
View ArticleRE: DRV8823: Unipolar stepper motor drive
Hi Rakesh, It may be possible, depending on the setup. How do you plan to connect the unipolar stepper? Please provide a diagram of the connections. What are the stepper motor parameters...
View ArticleDRV8823: Unipolar stepper motor drive
Part Number: DRV8823Hi,Is it possible to drive the stepper motor in unipolar mode using DRV8823. If yes could you please share the sequence to be followed.
View ArticleRE: DRV8816: disabled DRV8816 is not 'Z' at output!
Hi Ralf, Can you clarify: V-out <-> V-supply - 45mA ??? why?? !! it gets 150mA in sleep-mode Did you connect a DC ammeter from V-supply directly to the output in both conditions above? Please...
View ArticleRE: DRV8816: disabled DRV8816 is not 'Z' at output!
Hi Rick, a.) yes, I connected the DC-multimeter directly between V-supply and output in both conditions b.) sleep-mode means nSleep = logic low
View ArticleDRV8816: disabled DRV8816 is not 'Z' at output!
Part Number: DRV8816Hello Ti-forum,my application has pullup (47kOhm) connected to output when disabled I measure: V-supply =35V -> V-output = 14V V-supply= 15V -> V-output = 12V measure...
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