RE: Motor Driver for 3 phase motor
Hi Diederik, The BG3612 EC motor needs the phases to be changed based on the hall inputs. A brushed dc driver with a full bridge or a BLDC driver with three half bridges can perform this function....
View Articledrv8840: ROHS 2 compliance
Part Number: drv8840Hello Team,Are DRV8840PWPR and DRV8842PWPR ROHS-2 compliant?Regards,Mahendra
View ArticleClik here to view.
RE: DRV8701: Vref Adjustment based on motor size
Hi,I just disassembled my motor and found out there is a PCB that contains a RLC circuit that goes to the brushes. This seems to be some type of EMI suppression. I suppose I will need to figure out...
View ArticleClik here to view.
DRV8701: Vref Adjustment based on motor size
Part Number: DRV8701Hi,I have a product that is to use the DRV8701E for many different applications and different motor ratings. I have a fixed sense resistor of 0.005 Ohms that I calculated for the...
View ArticleRE: DRV8432: Microstepping Mode, Externally Setting OC CBC Protection Threshold
Rick,Thank you for your response. Yes, I've looked at DRV8711. In fact, this IC is my second choice and it's not the first one only because of the need for external bridges. We will have to provide of...
View ArticleRE: DRV8825: Irregularities in output waveform
I missed one of the mods in the list below the schematic: R2 is now 6.8K and R3 is now 2.0K. This gives me 1.5A max current.
View ArticleClik here to view.
DRV8825: Irregularities in output waveform
Part Number: DRV8825I am designing a custom controller board for controlling steppers on a telescope mount. For my initial prototype (Rev A) I used two Pololu DRV8825 Stepper Motor Driver Carrier...
View ArticleRE: DRV8432: Microstepping Mode, Externally Setting OC CBC Protection Threshold
Hi Michael, We will have to provide of up to 5+ amps of motor current and it's my concern that 8711's output capabilities might be somewhat dicey to directly drive gates of higher power FETs with Ciss...
View ArticleRE: DRV8432: Microstepping Mode, Externally Setting OC CBC Protection Threshold
Rick,Thank you for clarifying that staff for me. I missed it entirely that I would need two independent winding current controls in microstepping mode. And 8711 device's ability to drive a typical Ciss...
View ArticleRE: DRV8880: AutoTune Feature for 5 A Stepper Motor
Hi Rick, Thanks for prompt reply. Once manually tuned during installation, do I need to retune the stepper motor to account for the aging of motor(and other variations in system over a period of time)...
View ArticleRE: DRV8825: Irregularities in output waveform
Hello jcarter, Is your revB layout design very similar to your revA? If it is, then please isolate the 3rd device and see if you can successfully run the two motors from revA. If you are not successful...
View ArticleRE: drv8840: ROHS 2 compliance
Hi Mahendra, Please see the following link: www.ti.com/ecoinfo Under this you will find: TI RoHS and Product Status Designation www.ti.com/.../szzq088 There you will find the answer.
View ArticleRE: DRV8825: Irregularities in output waveform
Hello Luis, The Rev B design is similar to the Rev A except that on the Rev A the DRV8825 devices are on the Pololu carrier board rather than on my board as mentioned. For the testing thus far I only...
View ArticleRE: DRV8825: Irregularities in output waveform
Hello Luis, After looking more closely at your question about similarities in layout between my Rev A and Rev B, I think the answer is that they are not very similar with regards to the DRV8825 since...
View ArticleRE: DRV8860: DRV8860 output channels question
Hi Gavin, We are investigating. This may take a few days.
View ArticleRE: DRV8825: Irregularities in output waveform
Hello jcarter, Thank you for the clarification. I see the thermal PAD which connects to the GND is missing, it is recommended to have that thermal Pad to remove heat. One thing we can try is to lower...
View ArticleRE: DRV8711: Can DRV8711 operate without SPI?
Hi Rick, thanks for your quick answer. I understood that SPI is required. So is there any software (code example for SPI communication) at TI? I couldn't find from DRV8711 webpage. thanks, TS
View ArticleRE: Universal Stepper Motor Driver Reference Design-TIDA-000716
I need the code of TIDA-00736 too, this is not open ? Or I need to find an agent for it?
View ArticleUniversal Stepper Motor Driver Reference Design-TIDA-000716
Hi,if you have code for TIDA-000716?Thanks
View Article
