Maximum commutation frequency?
I received eval kits for DRV10866 and DRV11873. Hooking up the motor that I intend to use in my application (Maxon motors EC-14 flat, 6V nominal [part # 339251]), doesn't work correctly with either...
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DRV8432 Just doesn't work.....
Hi all,I have copied the EVM schematic and created a PCB to evaluate the DRV8432 in the absence of an evaluation board (below).The layout of the PCB bears a striking similarity to the EVM board too...
View ArticleDRV8432EVM
Hi, I have two 5.5A bipolar step motors that I need controllers for. Your DRV8432EVM boards seem perfect! When will they be available? Do you offer blank boards or gerber files now?Byron
View ArticleQuery
Hello,I really need help , i am still a learner and this is the task given.I am working with Instaspin FOC drv8301 kitmy motor which has rated voltage 18V .when working with automatic ID I change the...
View ArticleDRV8312 EVM board is not working correctly.
Hi Ryan, Upon powering up the board , i found that VR2 & VR3 voltage regulator getting hot & this DRV8312 Kit is unable to rotate the motor. Further there is no fault indication...
View ArticleDRV8825 Charge pump not running
Hi,I have a prototype board with 2 drv8825 channels. One works fine, the other has 3.3 Vref out but the .01uf charge pump osc cap (pins 1 - 2) is setting at ground (not oscillating). I checked the Vf...
View ArticleDRV8833 motor driver: stepper motor is not rotating in coounterclock...
hi, I am writing a linux device driver for stepper motor.I need to rotate stepper motor in both direction.I am able to rotate stepper motor in clockwise direction but when i am trying this in...
View ArticleDRV8811 not working
(Please visit the site to view this file)I've just built up a breakout board to test the DRV8811 and It's not working at all! Is there something wrong with my schematic? I've tied SLP to 5V and ENA to...
View Articledecay modes drv8432
Hi, I have created a board based on the rdk stepper using an lm3s9b96 and two drv8432. Can anyone provide some insight on how to implement fast and slow decay. Thanks
View ArticleDRV11873EVM PWM
Hello,As according to the user guide for the evaluation module, I removed the 0.0 ohm R5 resistor to allow the use of an external PWM. To test the functionality, I connected the PWM test pin from...
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DRV8301: the timing diagram for EN_GATE vs. n-SCS
Hi,Just like to double confirm one thing for DRV8301 SPI. Please refer to the attached picture. Based on the datasheet, MCU cannot send any SPI command to DRV8301 successfully if T_SPI_RAEDY > 10...
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 ArticleDRV8801 reversing direction on the fly
We are using the DRV8801 to drive a small 12V motor to move some lever via gears. I need to find out if there are any implications in cases when changing direction without turning the enable off when...
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....
View ArticleI keep shorting out my DRV8332
Hey guys,I have a custom PCB based on the design of the DRV8312-C2-Kit (with the 8332) being ran by a TMS320F28335. While my motor runs great unloaded at a constat speed, I keep shorting the chip while...
View ArticleH-Bridge and its Driver ICs
Application - DC Motor Drive DevelopmentMotor Spec - 24V DC, 20A, Permanent Magnet DC Motor Required Solution 1: Integrated Motor Driver Solution (H-Bridge + Gate Controller on a single chip IC)...
View ArticleDetecting open load condition, DRV8412 or DRV8432
Hi, I understand DRV84x2 devices have the capability to detect Overcurrent/Overtemp conditions. I also need to be able to detect an open load condition but I do not see this is a feature on DRV84x2....
View ArticleDRV11873 motor start in high speed
When I start the motor (changing PWMIN from 0 duty cycle to any value), the motor starts in high speed, and than decelerate to the desired speed.I have checked a motor's phase, and see that for 1% duty...
View ArticleVoltage Problem with DRV11873
Hallo,I'm trying to run a Roxxy BL Outrunner 2827/34 motor with DRV11873. I used 330 Ohm resistors on U, V, and W to the COM. The motor spin fine at 6 volt supply but when I increase the voltage to...
View ArticleDRV8837 Output when VCC 0
Hi Motor Driver Team,Setting this forum post up for Tyto."Regarding the DRV8837, I’m assuming that when VCC is 0V, the outputs are high impedance, correct? Ideally, they’d be at 0V to hold the motor in...
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