DRV8871: Stall current with PWM less than with DC
Part Number:DRV8871HiI’m having issues using DRV8871 to drive a 6 V nominal coreless dc motor.The situation is this; if I hook up the motor directly to a DC power supply giving it 6 V it draws 2.9 A at...
View ArticleDRV591: p2p replacement by DRV593
Part Number:DRV591Hi team,My customer now is using DRV591. Now they have willing to replace it with DRV593.Could you let me know by using exatctly the same DRV591 schematics, could DRV593 be directly...
View ArticleClik here to view.
DRV8833: How to reduce motor peak current?
Part Number:DRV8833Dear Sir,How to reduce motor peak current?The peak value of the attached waveform CH1 is too high to exceed the maximum motor current specification of 1.9A.And customers worry that...
View ArticleDRV8812: VMX voltage ripple
Part Number:DRV8812HI, Team:Do we have some power supply ripple requirement on the VMx pin?My customer found when the motor running, the ripple on VMx pin is about 1Vpp, and not sure if the chip can...
View ArticleCCS/DRV8304: CCS/DRV8304:
Part Number:DRV8304Tool/software: Code Composer StudioHII'm was recently to introduced with the DRV8304.After reading almost evry document out there some things are still remain un clear to me. Is it...
View ArticleDRV8823: DRV8823 Source code
Part Number:DRV8823Hi Motor Driver team Can I get source code that rotate in both directions and controled of motor rotation speed deceleration befor reaching stop point, Stall detecion?Thanks.Best...
View Articleselection of driver IC for asymmetric bridge converter for Switched...
Hello,I have read one thread that UCC27714 is useful for driving the Asymmetric bridge converter with both of the MOSFET's in the same leg will be turned ON and turn OFF simultaneously. Could you...
View ArticleClik here to view.
DRV8872: Driver current issue
Part Number:DRV8872drv8872hi, I am using drv8872 for one of our applications to drive dc motor. When turning off the driver at high current (1A avg) the driver current shoot up in the opposite...
View ArticleClik here to view.
DRV10983: consistency issues for DRV10983
Part Number:DRV10983Dear ，my customer use DRV10983 to design a fan BLDC driver，motor parameter is 24v/30w。now the fan motor can run normally，but the input power is different,customer suspect it is the...
View ArticleClik here to view.
DRV8305: the difference of the overcurrent threshold value is very serious
Part Number:DRV8305Dear，DRV83053 is designed for a water pump BLDC driver,now the board can run normally.but customer test the overcurrent is different greatly.for the same chip,the high side and low...
View ArticleLM629: How did LM629's 8bit PWM(including sign and magnitude )output controls...
Part Number:LM629I see LM629's datasheet said the LM629 provides 8-bit, sign and magnitude PWM output signals for directly driving switch-mode motor-drive amplifiers.This means there are only 128...
View ArticleDRV8412: DRV8412 - one output not working
Part Number:DRV8412HiWe build for our students a demo board with 4 DRV8412. We build up 47 units but on 16 at least one driver (in most cases) one of two outputs doesn't work.Sometimes only one is not...
View ArticleDRV8312: How to measure motor current in using Instaspin
Part Number:DRV8312I need to measure the motor current of sensor less BLDC ?Is it possible to sense it without any extra hardware?I am using DRV8312 kit F28027.
View ArticleDRV8824: May we have DRV8824QPWPRQ1 driver that for help customer SW...
Part Number:DRV8824Hi Sir May we have DRV8824QPWPRQ1 driver that for help customer SW development? Bogey
View ArticleBOOSTXL-DRV8320S: register value
Part Number:BOOSTXL-DRV8320SHiOur customer evaluates DRV8320 with TI-EVM. And they have some question.Before starting the evaluation,,They confirmed the initial value of each register. (It was ok) And...
View ArticleClik here to view.
CCS/DRV8711: Motor driver DRV8711
Part Number:DRV8711Tool/software: Code Composer StudioIm using this drv8711 with mspg2553.This PCB is not working,If PSI enable write, it is disabled internally @ drv8711.I tried continous write...
View ArticleDRV8881: question regarding "decay modes" of the DRV8881
Part Number:DRV8881I have a confusion about the DRV8881"decay modes" (slow, fast, 30/70, and, on the DRV8881E, AutoTune). Do these modesa) come into play only when current regulation is triggered (as...
View ArticleClik here to view.
DRV8412: Driver doesn't work propely: OTW STRANGE BEHAVIOUR
Part Number:DRV8412Hi everybody.I made custom a circuit with DRV8412 and dspic33 family Microcontroller. I use this board with 4 motors DC brushless connected with M1=M2=M3 =0; I use 16KHz pwm.Motors...
View ArticleClik here to view.
DRV8313: How to limit the current value with the COMPO pin ?
Part Number:DRV8313Hi, I use the DRV8313 on the new project. Now the torque is about 5KGf.cm. How can I reduce the output current , so that the motor rotating torque could lower about 3KGf.cm ???I...
View ArticleDRV8711: DRV8711 problems exting sleep mode
Part Number:DRV8711Hi,I'm using a DRV8711 and I have problems. The problem apear when I am using the DRV8711 IC for motor control and have problems working with the sleep mode. The problem appears when...
View Article