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DRV8432 Inrush Resistors Placement?
Hello,Per advice from Ryan, we're going to add some 0603 5 ohm resistors on our GVDD_X pins. ( http://e2e.ti.com/support/applications/motor_drivers/f/38/p/272693/956123.aspx )I just want to make sure...
View ArticleHeat Sink Compound for DRV8432
Hey TI,A question about heat-sink compounds for the DRV8432. In the documentation, we noted that connecting the heat sink to ground is recommended. We found that connecting it to ground in our...
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PWM Phase on DRV8432
Folks,First, everyone on the forum has been awesome about answering problems. Thank you very much!We have a DRV8432 setup as 2 full bridges, CBC mode. For each full bridge, our PWM comes out slightly...
View ArticleDRV8837 as Full Bridge
I had a question regarding the H-bridge we are using - DRV8837. When operating the part in a full bridge configuration, do you recommend adding external flyback diodes? Inside the part each FET has...
View ArticleUni-polar stepper driven by a bi-polar driver
I would like to use a bi-polar drive to drive my 6 wire uni-polar stepper motor. The problem is the center taps are internally connected.I understand if they weren't internally connected I could just...
View ArticleDRV8301 (pin-6, fault) go low once EN_GATE is activated
Hi,We meet the trouble in FAULT error with no PWM into DRV8301. Based on DRV8301 EVM board's schematic, we make our board. When power on our board without EN_GATE, pin-6 is kept HIGH as normal. But...
View Articledrv8829 pwm noise
I am using a drv8829 for a bipolar stepper motor application. There is significant pwm noise on the motor leads (Inoise ~ 0.4A pkpk). It is audible at certain current levels. Is there any advise...
View ArticleQuestion about DRV8301 SPI control register-1
Hi,Could you advice me what's the default setting value for PWM_MODE in DRV8301 SPI control register-1 ?? It's 0 or 1 ?? Thanks!
View ArticleAbout DRV8811EVM and GUI
Is setting up HOMEn by DRV8811EVM possible?Although I think that reset and power up become "L" and others "H", it always becomes "L".(At the time of PC connection: "L", after motor rotation:"L")The...
View ArticleDRV8301 : No PWM output
Hi,I have DRV8301 turned on with +20V or +30V. I have input PWM into DRV8301, but no PWM are observed. Error reporting n-Fault and n-OTW are always kept high when EN_GATE goes to high from low or to...
View ArticleWhat is the approach used to start PMSM when not knowing the position of the...
Hi,I am using the DRV8312 kit to turn a PMSM motor. When I look into the "\ti\controlSUITE\development_kits\DRV8312-C2-KIT_v128\PM_Sensorless" project, I am wandering what is the approach used to...
View ArticleLMD18245 3A,55V DMOS Full-Bridge Motor Driver
hi,i am interfacing Atmega 16 to Motor driver circuit LMD18245 3A.Whenever the PWM pulses is 0,this driver is giving 24V output.When the PWM pulses is working then output is as per to the input given...
View ArticleDRV8832 faultn behavior
Hi, I'm using an DRV8832 to switch a small solenoid back and forth at a rate of 10 Hz.I use In1, In2 = 0, 0; 1, 0; 0,0; 0,1 ... i.e. standby, fwd, standby, reverse...Everytime I switch, the FAULTn...
View ArticleDRV3204-Q1 operation
Hi, thereI have some questions about DRV3204-Q1 operation.1. When DRV3204 is written by way of SPI, what value dose DOUT pin output?2. How dose DRV3204-Q1 use built-in EEPROM?3. Pls let me know that...
View ArticleDRV8312 current sensing
HiIm having some trouble understanding the current sensing part of the DRV8312, i found the datasheet on the current sensing amplifier but i am still unsure about the exect relation between the output...
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DRV8432 pin connections question
Hi,I have a coule of questions regarding the pin connections of the above chip.1. Is it possible to set the Roc_adj value by the use of two TPL0501-100 connected in rheostat mode like shown in the...
View ArticleDRV8312 EVM and current sensing
Hello everyone,I have a simple question the current sensing of the evaluation board DRV8312 EVM.From the sheet 1/6 of the schematics from Control Suite, I am not sure to understand why the resistor...
View ArticleDRV8301-69M-KIT
HIWould like to check if DRV8301-69M-KIT contains the Piccolo F28069M Control Card?Quite sure it does, but would prefer a confirmation.Ivan
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Possible cause to damage DRV8301 ?
Hi,Two questions about DRV8301 operation. Please kindly advice me. Thanks!(1) If DRV8301's INL_A / INL_B / INL_C are floating with PWM_MODE value = 0, are GL_A / GL_B / GL_C kept high impedance and no...
View ArticleFailure of DRV8302 Pre-Driver
Hi,I've been trying to develop a design using the DRV8302 motor pre-driver and have had some success with the suggested schematic. I've run our brushless dc motor under load at around 30V PVDD....
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