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24V power supply for BOOST-DRV8711 module prevent UART to work properly
without the 24V power supply for the BOOST-DRV8711 module enabled, the MSP430 launch pad UART works as expected for the GUI app of the BOOST-DRV8711_FIRMWAREv1.0 project.the...
View ArticleDRV 8834 nfault pin
Hi TI, I m using DRV8834 IC. my question is what is the output of nfault pin when Vm=5V and not enabling other pin's sleep,enable,config etc.. without connecting to load . ( my...
View ArticleDRV8432 peak output current question
All,in datasheet page 2 for the DRV8432 for absolute maximum ratings it states 20amp for transient peak output current for latch shut down per pin and 16amp for transient peak output current pulse...
View ArticleDRV8711 Max sink current for open drain pin
HiWhen nFault is low, nFault-pin draws the current from pull-up voltage. I think there is only leakage current of operating Hi-z in datasheet.1. Could you let me know the Ron value of open drain pin?...
View ArticleDRV8840 VOUT1-pin
HiDRV8840 has two VOUT1-pin. I think that this two pin must be connected for supplying large current to motor. But it is separated from arrangement of these pins. 1.Why these pin is separated? 2.Can...
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Drv8837 drive questions
According to the datasheet, IN1 inputs PWM（high is 3.3V），IN2 inputs HIGH，then OUT1 outputs LOW and OUT2 outputs PWM(high is 5V)IN2 inputs PWM（high is 3.3V），IN1 inputs HIGH，then OUT2 outputs LOW and...
View ArticleDRV8711 Delay time of nFault output
HiCould you let me know the delay time of nFault output. I would like to know the time from OCP detection to becoming low output at nFault.Best regardsShimizu
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shunt resistor for drv8432?
hi there,the datasheet say, "Because each half bridge has independent supply and ground pins, a shunt sensing resistor can be inserted between PVDD to PVDD_X or GND_X to GND (ground plane). A high side...
View ArticleDRV8301 outputs GVdd and AVdd
Can I from those outputs pins the external circuit (load 1-3 mA) to supply?
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DRV8432 5OHM RESISTOR ON GVDD_X PINS?
Hello,pls see data sheet page 11 states use 5ohm resistor on GVDD-X pins for >220nF BS caps. question is do i put this resistor before or after bypass capacitor to this same pin?also do i need a...
View ArticleDRV8432 cycle-by-cycle mode question
Hi,for the DRV8432 regarding the cycle-by-cycle mode. is there a TI application note regarding this topic? The idea of 1% pwm on the "off" channel is not mentioned in data sheet is it? I put this 1%...
View ArticleDRV8824 PowerPad / EVM schematics
Hi, My customer encounter a problem with DRV8824 in their application. (1)Now, the customer is checking difference between their board anda reference, EVM board.Checking schematics of...
View ArticleIs it possible to use DRV8837DSGR to drive a Stepper motor
Hello of late I have been trying drive a stepper motor I found various compatible drives but "DRV8837DSGR" caught my attention, it is basically a DC motor driver unit. My question is will be able to...
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 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 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 ArticleDRV8301 shoot-through protection
I need some details on the shoot-through protection on the DRV8301.The datasheet says:"The gate driver uses automatic hand shaking when high side FET or low side FET is switching to prevent current...
View ArticleDRV8825, ramping voltage
Hello,Looking at the data sheet I have noticed that the DRV8825 has a maximum voltage of ramping of 1 volt/us.My question is, what if this maximum is exceeded. How can it affect the IC? Are there any...
View ArticleDRV88xx – About H-bridge motor driver which is the Linear current regulation.
Hi Team, We are looking for the H-bridge motor driver which is the Linear current regulation.However, I couldn't find this motor driver.Could you please let me know it if you know the appropriate...
View ArticleDRV8301's dead time not constant.
Hello,I am working with a DRV8301 in 3-input mode, and it seems that the dead time is doing naughty things by not keeping constant. This is causing frequent short circuits that have led to some broken...
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