DRV8302 dual current shunt amps usage with a single current shunt
Hi all,Is it possible to use the DRV8302 with a single current shunt? Should then the dual current amps be paralleled or only one of them can be used?Thanks!
View ArticleSimulating drv8801a-q1
Hi All, I am wondering how I would go about simulating brushed DC motor driver drv8801a-q1 in OrCAD/pspice/ltspice. I have limited experience with all of these programs so details are very much...
View ArticleDRV8825 suitable for 340mArms load?
Hi all,Can the expert help to advise on this application: 1. The current limit for the DRV8825 copper drive is governed by the equation Ichop = Vref/(5xRsense). Please confirm if the current is...
View ArticleClik here to view.
DRV8823 / About setting the step mode.
Hi all.I would like to know that DRV8823 can be adjustable all the way up to 1/8 step.This device has three serial interface resister (xl2, xl1, xl0), so I can change the relative current.According to...
View ArticleDRV8711EVM causing hissing noise
Can anyone explain why the DRV8711EVM causes my motor to hiss when not moving? Is it a setting I can change?
View ArticleDRV8301 Commutation and TI MSP430 motor control code
Good day! We have a new design with a DRV8301 being driven by an MSP430, and I seek clarification of how exactly the MSP430 PWMs should drive the DRV chip.In the PDF that came with the demo code...
View ArticleDRV8711 Stepper Motor booster pack with MSP-EXP430430F5529LP
I'm working with a stepper motor, DRV8711 Booster Pack and a MSP-EXP430F5529LP.In my code I am:1. Resetting (active high)2. nSleep (active high)3. setting direction bit4. Writing to ENBL via SPI5....
View ArticlePossibility of fast BLDC motor direction switch with DRV8307 or 8308
Hello there, I am developing a segway (a stand-up bike) and currently bump into some problem.I am using two sets of 24V BLDC hub motor, 3 phase with 3 hall sensor. Using DRV8307 to drive it.Here is the...
View ArticleDRV8301 on custom PCB not outputting PWM
We created a PCB board using the specifications from the datasheet for the DRV8301 but we are not getting any output when connecting this board to a C2000 LaunchPad XL TMS320F2802x. We are setting...
View ArticleHow Hall effect sensor of bldc motor can be used as input to TI tool kit...
Hi,I am using TI tool kit DRV8301-69M. Please tell me how do I interface Hall inputs and read its feed back.
View ArticleThree Phase BLDC Motor Supplier
This is my first post, I have searched the forums on this but I cannot find that this question has been asked or answered before. I have the TI Eval Kit for the DRV8312 and what I am wondering is are...
View ArticleDRV8816 for non motor application
Hi all,at the moment we use a discrete H-bridge made of some transistors and power MOSFETs to drive a series resonance circuit built by an inductor and a capacitor at 12V/40kHz. Peak current is 1.2A,...
View ArticleClik here to view.
DRV8301 fault in 6 pwm mode
Hi,I'm working with the kit DRV8301-hc-c2 with a BLDC motor.I would like to implement the switching scheme in FigureWhen I apply this pattern, see state 0 (AH in pwm, BL in ON) ; you can see figure...
View ArticleMotor Driver Solution for CD Player
Hello, Customer would like a motor driver like to push cd player plate. If plate will be forced from external touch, it will be pullback. Do we have any solution for this application or...
View Articledc brushed motor contoller dies when removing drag resistor
Have a controller on a dc brushed motor drawing approx 8 amps with a 1 ohm resistor connected across motor (while motor is connected to controller with no power to controller) and motor is being...
View ArticleBLDC Evaluation Kits - Which one do I pick?
I have the following: BLDC Coreless motor, 3 phase- no Hall sensors. Adjustable power supply 0-50 V - and 0 - 20 Amp Batteries 12 and 24 V batteries I want to be able to evaluate the motor...
View ArticleDRV8432 switching behaviour
Hello,We have developed a product using a DRV8432, Using the reference circuit 8.2.3 in the datasheet (Document SLES242G)We have noticed that during manufacture about 10% of our devices are not...
View ArticleThe current sensing schematics of DRV8832 or DRV8802
Hello, if customer would like to do current sensing for DC motor to monitor current at any time. Do we have any reference schematics of current sensing for example for drv8832 or drv8802?...
View ArticleDRV8835 shutting down
I am testing the DRV8835 using a resistive 1.4 Ohm load. Vcc = 3.3V. The schematic is the same as in figure 1 on the datasheets. The chip shut down when Vm approaches 1V with load current =500mA. I...
View ArticleDRV8312 Current limit behaivour during motor startup (inrush current)
Hello,I'm planning to use DRV8312 for BLDC motor application. Driver will work with various motors from 12 - 48V and max constant current 2.5A. Inrush current could be up to 10x higher then normal...
View Article