brushless motor driver with two current shunt amplifiers
Hi!I am using the BOOSTXL-DRV8301 to drive bldc motor and measuring 2 phases currents. till now for evaluation it is great.my problem is that the default configuration (amplifier gain for example) isnt...
View ArticleDRV8840 Internal Current control PWM frequency
Hello.I have DRV8840 on TI CPG005_DRV88xx Evaluation Module.Load: DC motor R = 6.9 Ohm, L = 0.309 mH and inductor R = 2.6 Ohm, L= 1.36 mH. Total R = 9.5 Ohm, L= 1.669 mH.VM = 24V.Current sense resistor...
View ArticleDRV8301 + IRFS3004-7PPbF
Hello -I have been doing a lot of learning up on MOSFET characteristics, gate drivers, etc etc. and have pretty much narrowed down to a couple of MOSFETs for my application. The one I am leaning...
View ArticleDRV887x short to ground protection
Hi, I would like to know if the device is protected for short to ground on all pins, that is a requirement needed for automotive application.For example in DRV8801-Q1 datasheet we say short to ground...
View ArticleDRV8842 Overcurrent while Stopping
Hello team,I have a circuit driving a 2A DC motor with a DRV8842. It works very well and is capable to start the motor without any problems. But *sometimes* (About 50% of the times) when the motor is...
View ArticleTemperature of the stepper motor
HelloI use drv8711 for driving stepper motor , when i use recommended initial setting in SLVA632 document (Table 2) , after 10 or 15 minutes , motor temperature will increase , and motor is very hot...
View ArticleDRV8825's nHOME and DECAY pin question
Hola,I have a question about connection method of nHOME and DECAY pin,should I connect nHOME and DECAY pin to SoC to controlled by software？
View ArticleDRV8301 Over-current protection suitable for inrush-current limiting?
Hello,short background first: we are developing a linear (reciprocating) pump motor, and the driver is based on DRV8301. It's currently operational using the DRV8301-69M-KIT EVM.In the next version of...
View Articleservo motor minimum angle
Hai, I want to drive a small pwm based servo motor. Here I know the basic things about the servo motor.Can I drive this, below 1 degree accuracy. I need around 0.1125 degree positional change
View Article3 vs 6 PWM on DRV8301
Hii am using the drv8301 to drive my motor with Field Oriented Control.i understand that with FOC this is possible with only 3 pwm mode.but i would be happy if someone can please explain if there any...
View Articleconnecting a resolver to the DRV-8312 motor control kit
goodday, i want to get rotor position information for PMSM and i am using the DRV-8312-C2-Kit. I am using the PM_sensorless code and i want to compare estimated rotor position from the SMO with the...
View ArticleMotor driver for some 12 V DC brushed motors with 0.8 A peak current
Hi,I need a driver for some 12 V DC brushed motors with 0.8 A stall current and I did my research on the motor drivers and it came down to DRV8835 which has all the features I need; but the problem is...
View ArticleDRV8301 over temperature protection
Datasheet, 7.3.4.4 Over temperature Protection. What senses the temperature?
View ArticleDRV8305 Reference Design Questions
Hello -I have a couple of questions regarding reference designs using the DRV8305 (namely the BOOSTXL-DRV8305 and TIDA-00643.1) Both the BOOSTXL-DRV8305 and the TIDA-00643 reference circuit use a...
View ArticleN_channel MOSFET selection for DVR8301
Hii am using the BOOSTXL-DRV8301 to drive BLDC motor.we now want to deign our own PCB with the DRV8301.the BOOSTXL uses CSD18533Q5A mosfets, which i think are little bit oversize for our application...
View ArticleDRV3205-Q1 full datasheet
hiThere is a way to get the full datasheet with DRV3205-Q1 schematic? In the TI web there is the short datasheet.thanks Daniel
View ArticleDRV10983 - small motor but tripping out at 50%
I am trying to drive a 3 watt BDCM with centrifugal fan, to replace a current design which uses a Toshiba TB6575. I am finding I cannot get the motor up to top speed - I am using the TI dev kit. On...
View ArticleDRV8885 Output
I am using two small stepper motors in an application that will be used in an indoor, controlled temperature environment. I would like to use the DRV8885 with on chip current sensing. The motor I am...
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some Serious problem for drv8812
This is my drv8812 PWM mode drive Stepper motor when input pin23 20 input fixed PWM output are difference，it have Jamming signal. So when Stepper motorare stop the Stepper motor are Shake. who...
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DRV8308 Bad Commutation in SINE mode
The DRV8308 register setup I am using is shown below.The mode is 120 deg commutatioin with single Hall (BASIC = 0, ENSINE=0)This runs the motor perfectly over a wide speed range. LOCKn active after...
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