Motor driver for stepper motor
Sir/mam I am planning to make a automatic solar tracker, So for the movement i have planned to make use of two stepper motors for x and y axis.So kindly direct me to which kind of add on...
View ArticlePowerPad for DRV8801
This is my first post and I'm jumping right in. I'm creating the footprint for the DRV8801PWP in Orcad PCB Editor and could use some help. Hopefully some of the gurus on here use Orcad and PCB Editor!...
View ArticleDRV8825 supply current question
Hi,I have gone through the power dissipation calculation for my 8825 application. Application specs:Stepper Motor: 5.7 ohms per coil, 1A max per coil.multistep set to 1/4Very low frequency needed for...
View ArticleDRV8860 timings
I could not find in the datasheet the timings for driving this circuit.For example, what is the maximum clock speed (DRV8860)?Did I miss anything?Thanks for your support, Philippe
View ArticleDRV8824 - typical application - 100uF bw VM and GND
Hello,In page19 of DRV8824 datasheet (SLVSA06J), there is a figure of typical application circuit.On the left side of the figure, there is 100uF capacitance between VM and GND. (1) Is this 100uF cap...
View ArticleDRV8432 cycle-by-cycle not work for me
Hello,pls send to me what the pwma, pwmb waveforrm should look like for cycle-by-cycle mode. i am using pwma 97%, duty cycle and pwmb zero (off) and cycle-by-cycle works perfectly!! why does it work if...
View Articlei need help with DRV8432 all modes
All, I am both the hw and sw designer for a new project and the TI DRV8432DKD is not working well for me at all. I have many questions and need to open up an on-going question/answer session with a...
View ArticleDRV8432 in OC Latching Shutdown Mode Reset line toggle time is what?
Sir, When using the DRV8432 in the mode: OC latching shutdown (no cycle-by-cycle current limit) once a fault occurs on the otw or fault lines (active low) i need to toggle the reset line from high to...
View ArticleDRV8824 VCP vs. VM voltage
Hi,My customer has a problem with DRV8824 in their system.There are multiple DRV8824s on a board and motors in the system. One channel of the motors does not work and output from the DRV8824 is...
View ArticleDRV8711EVM output pulse width too narrow
We have built a new 2-phase motor and are having problems using the DRV8711EVM board to control the motor. We're getting very narrow 5us pulses with a duty cycle of 18% (37kHz) out of the DRV8711EVM...
View ArticleDRV8823 for 2 DC motors, parallel 2 H bridges
Hello motor team.I need to drive 2x DC motors, 2Amps max, at 12Vdc.I also need SPI control to adjust the currents of each motor.DRV8823 has 4 H-bridges rated 1.5Amps.So paralleling 2 H's for each motor...
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DRV8837 and Back EMF MCU Resetting
Hello,I designed a systems which will going to drive 16 DC motors. I have 16 drv8837, a dc to dc converter, MCU and RS485 driver.My DC motors characteristics is like...
View ArticleCCS6 / GUI Composer running incredibly SLOW for Stepper Motor Booster Board App
Hi, I have just received the Stepper Motor Boosterpack and have found the GUI Tool extremely slow and un-usableI am using CCS 6.0, the GUI tool is the one linked direct from the Boosterpack site...
View Articlehow to know if a stepper motor is supported by the BOOST-DRV8711?
does it support any 4 wire 2 phase bipolar stepper motor? or it has some limitations on Electrical Specifications for the supported bipolar stepper motor?for example, does it support all the modles in...
View Articlehow to run BOOST-DRV8711 GUI from CCS 6.0?
how to run BOOST-DRV8711 GUI from CCS 6.0?have imported the project for MSP430G2 to CCS 6.0, but can not import GUI to GUI Composer 6.0.
View ArticleDRV8301 Gate Drive Output Resistance
I'm considering FETs with a large enough gate capacitance and a high enough switching frequency where the switching losses of FETs are important (greater than the Rds_on losses at lower current...
View ArticleDrv8432 current sensing
Hi RyanThe datasheet mention in Max Absolute Rating: GND_X to GND –0.3 V to 0.3 VIf we have current sense RA,RB,RC,RD in the low end and drop is bigger of 100 mV for example 160mVwe...
View ArticleTarget connection to JTAG of tmdshvmtrpfckit using CCS v5 failed
Hi:I am using CCS v5 to connect to the JTAG emulator so that the template algorithms provided by TI can be run on board.In CCS, when testing the created connection, I found out it always failed,...
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DRV8811 drive current decay
Hello,I am using a DRV8811 chip to drive a NanoTech LP2515S0104. The DRV8811 circuitry is as follows:VMA = VMB = 12VISENA = ISENB = 2.87 OhmsRCA = RCB = (220 pF) * (14.7 kOhms)VREF = 3.0VDecay mode is...
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BOOST-DRV8711 CCS6.0 debug failed for UARTConnection_0/ComPort
1, import the mps430 project as stated in the User's Guide2. zip the GUI project and then import it by GUI Composer3. change Compiler to V4.3.4 to get rid of a warnning message while building the...
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