Stepper Motor and BDLC in one Controller
Dear Ladies and Gentleman,I'm searching for an motor controller for BDLC and Stepper Motor.The controller should be able to control an BDLC or a Stepper Motorin dependence of the software.I found the...
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Isolating two DRV8711 for redundancy
I am working on a design that requires redundant motor driver circuits. One circuit will be energized (driving a stepper motor with 24V) while the other is not. This second circuit is located on a...
View ArticleDRV8711 high temperature
I'm using the DRV8711 with IRLR2905Z Mosfets at 42V/4,0Arms. The board dimensions are 71*77mm, 4 layer using large GND copper planes.After adding series resistors to the lowside FETs the boards work OK...
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Any TO-220 MOSFET(Max Vds >60V Id>60A ) recommended for DRV8301?
hi, I am doing a DRV8301 design and using ST STP80NF70 as MOSFET, my circuit is similar with BOOSTXL-DRV8301, but the VGDD is good before RUN is activated but failed and is down to gnd after the PWM...
View ArticleDRV8303 Min PWM output frequency
Hi,Could you let me know minimum PWM output frequency, please? I know that max frequency is 200kHz from datasheet.Customer wants to use at 7Hz PWM input(very slow). and sets motor speed by changing...
View ArticleDRV8871 current through RILIM
Hi, folksThe datasheet describes RLIM as a standard resistor.Could you tell me N ratio between drive current and ILIM current?or could you please let me know how much watt's resistor is suitable?We...
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DRV8825 Reset Issue
Hi,We have designed a board with 3 DRV8825 Drivers. The main controller is STM32 uC with configuration interface(Microstepping, Reset, Enable, Direction, Decay etc) through 74HC595 & 3 separate...
View ArticleDRV8825 / about software.
Hi all,Please let us know about software of DRV8825EVM.I found the two software, "DRV8824/25 EVM" and "CPG004 DRV88xx EVM".We have questions as follow; - Are these can be used together ? - Can we...
View ArticleWhat is the Internal mosfet VDS for DRV10983
What is the Internal mosfet VDS for DRV10983Regards,Datta
View ArticleHow to control current in DRV10983
I am working on DRV10983 for ceiling fan application. i have set IPD and i could see soft start of the motor. after some time Power supply current reaches to nearly 1Ampere and motor stops.in speed...
View ArticleDRV8302 Fault Pin
Hi everyone,I am using a DRV8302 to drive a BLDC motor but DRV8302 Fault Pin always equal to zero. I share my drawing and measurement below;I have run my circuit and Code Composer program. while...
View ArticleDRV8842 VREF pin problem with V3P3OUT * (2K / 3K)
Hi.We are trying to control 24V 65W DC motor with DRV8842. I can controlling motor with 100kHz PWM and can change direction with EN/PHASE interface but the speed of the motor is not enough. First I've...
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DRV8711 high current Stepper Driver
Hi,I have been testing a high current stepper motor and now chose to design the driver with DRV8711.Please refer the specifications of the stepper in the image below:Kindly guide me with the below...
View ArticleDRV8840 Vout pin open
Hello,Our customer uses the DRV8840, has a question.There are two pins for Vout. If the one of these pins is opened,does the OCP trip level change from 6A(min.) to 3A(min.) ?Regards,Naoki Aoyama
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DRV8432 datasheet package pin numbering
I just looked at the pin numbering on the DRV8432 and it is confusing as hell. In the top you have:Then on the first package part page you have:So according to those, you have the cutted edge with pin...
View ArticleDRV8870 REF input voltage at PWM without current regulation
Hi,I have a question about REF input voltage at PWM without current regulation. In datasheet, it is showd "0.3 to 5 V". But I would like to confirm that whether there is a problem if REF input voltage...
View ArticleBQ32002 - Maximum Vcc supply current
Hello Team,We are asked from our customer how much the maximum "Icc" (Vcc supply current) is. Do you have any test or simulation data ? Best Regards,Kawai
View ArticleLab example project to run on TMS320F28035
HiWe have acquired a TMS320 F 28035 Piccolo Exp Kit. Could you please let me know where I can locate the files to download that a project include (header files and other..) to run a PWM signal output?
View ArticleDRV8801 VBB Spec'ed for 8-36v volt operation, but nFAULT requires 12v.
DRV8801 VBB is spec'ed for 8-36v volt operation, but nFAULT requires 12v. Given this spec, I choose this device to operate a pneumatic valve which requires 10 volts PWM. The DRV8801 VBB range should...
View ArticleDRV10963B OTP settings
Hello!On page 17 of datasheet for DRV10963 I found OTP params such as ILIM and HO_TH. These parameters are for set of differenet types of DRV10963 such as DRV10963JJ or DRV10963JM. But there is one...
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