DRV8711DCPR
Hello,I have few basic Question on this Chip default status/settings. I am driving a stepper motor with this chip (DRV8711DCPR).. when i am done with all my SPI Settings, I am seeing a very peculiar...
View ArticleDRV8711 setup
Greatings! I have DRV8711 up and running, but I`m experiencing problems with the settings. I want to use NEMA 17 stepper motor. I`m using IRF530 MOSFETs for the bridge.Here are my settings:CTRL: 0000...
View ArticleNewbie -- Need help with compiling PM Sensorless project with Piccolo F2806x...
I am new to the TI tools (MCUs, CCS, ControlSUITE). To get started I am trying to follow the instructions for the PM Sensorless application example in...
View ArticleDRV8302 wiring (PullUps, ..)
Hello guys,I have some questions about wiring the DRV8302.PWRGD: the datasheet says 'open drain output with external pullup resistor required'. Do I need a pullup resistor, if I don't read the output...
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DRV8412 GUI connection.
Hello all,I am using a DRV8412 C2 Kit, and I am having issues with the GUI. I keep getting a connection issue with the TI board, I am able to connect the F28035 through CCS, I ran a couple of codes in...
View Articlesensing current
We were facing some problem in DRV8834 for measuring current from the designated current sensing pin for a stepper motor. We are using the same circuit as mentioned in datasheet figure 13 but not able...
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DRV8312 Complementary PWM quiescent current
Hi,I've been using the DRV8312 for the past few months to drive motors with the standard PWM scheme with no problems...However, I recently changed the control scheme to complementary PWM in order to...
View ArticleDRV8825 Problem
HI,I am using DRV8825 for driving stepper motor, whose specifications are, 1.5A, 1.43ohms, Fs = 110RPM.When i am driving the motor, motor gets stuck at start only and if i rotate shaft by hand it...
View ArticleBOOST-DRV8711 with f28027
Dear Sirs,I know that MSP-EXP430G2 works with BOOST-DRV8711 and LAUNCHXL-F28027 works with BOOSTXL-DRV8301 directly. But somehow, I have f28027 and BOOST-DRV8711 :)I want to spin a stepper motor with...
View ArticleWhat is Twake, max time to wake from sleep for DRV8835?
I don't see that in the datasheet.A different chip the DRV8811 in "Section 7.7 Timing Requirements" specifies a maximum of 1mS. (Time from leaving sleep til a step input is accepted.) But the...
View ArticleDRV 8832
I am thinking of using the DRV8832 or similar in a novel way as an h bridge driver of a resonant tank for LF RFID. Due to the high voltages created at resonance what are mage voltage ratings on the h...
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DRV8332 single sense resistor
Hello, Im using DRV8332 for 3 phase stepper motor drivebut i will use a single current read from the 3 phasesany problem to implement this design?and recommendations?i attached the layout sample, could...
View ArticleDRV8312 2-quadrant mode
hii am designing bldc motor driver (6 steps commutation) . i looked at the drv8312 data sheet.in Different Operational Modes section its says : "We recommend using a complementary control scheme"and...
View ArticleDRV8848 GUI S/W failure
Hi~To evaluate customer damper step motor, I installed GUI composer(6.1.1.0) & driver & GUI based on EVM document.But when I try to run execution file 'launcher.exe', there is no feedback after...
View ArticleDRV8816 continuous output current
I am considering switching to your DRV8816 h-bridge device and I want to verify that they will comfortably (cooly) handle 1A continuous.The specs are 2.8 Peak and 2 RMS. Do you consider RMS to be...
View Articlehelp about DRV8432
Hi, We company now use the IC DRV8432.We found that DRV8432's B output is lower than the designed voltage too much.And the bootstrapt voltage is low too.The working frequency is 200KHZ and the...
View ArticleDRV8885 Logic Input impedance when VM=0V
Hello,Our customer uses the DRV8885.The customer operate MCU before the DRV8885 operate.The customer wants to know the impedance of the logic input pins when the VM=0V.Could you tell me the impedance...
View ArticleRegarding Insta spin boostxl drv8031 controller and driver card with gui...
Respected sir, Few days back I have bought a BOOSTXL-DRV8301 insta spin bldc motor driver and as i wanted to manufacture separately the drv8301 driver board, I tried to do that but when I connect the...
View ArticleDRV8305 Operating Temperature
Hello -I have custom hardware consisting primarily of a TMS320F28027F and a DRV8305 (using InstaSPIN-FOC).My board is operational, but the DRV8305 runs quite hot. Even at low-current motor operation I...
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DRV8332 OTW and FAULT PIN are always low
Hi,I have DVR8432 chips on my board and it seems to have a problem with OTC and FAULT . The voltage on the fault and OTW pins is always around 1.5-2V. I don't believe I have any overcurrent condition...
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