DRV 8303 DATA SHEET NEEDS REV
Dear TI,Please update 8303 Data sheet. Figure 11 in particular calls out pins numbers that exceed or do not correlate to pin count or function on device.Can you add capacitor recommended size(s) as...
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DRV8801 drop out
I am seeing the 8801 drop out when driving the enable line with PWM. I have tried 5 KHz and 10 KHz. Similar behavior. Both runs: Phase 1, Mode(1,2) 0, nSleep 1 Runa111: 5 KHz PWM of enable, 90% duty...
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DRV8301 Shunt Resistor Waveforms - How much noise is typical? Less than 1 amp...
The blue line is from the Phase A lowside source pin to the .01 ohm shunt resistor compared to the gate signal in purple. So this is before amplifying it at the output of the SO1 pin. Is wanting to get...
View ArticleMax step frequency not reached for DRV8834
I am using the evaluation board DRV8834EVM and according to the datasheet the maximum step frequency is 250 kHz, but I set the PWM signal witha frequency higher than 1.5 kHz the motor stops.How can I...
View ArticleDRV8301 ignores low-side FET input signal
Hi,I’m using the DRV8301 to drive a three-phase BLDC motor in “6-step trapezodial commutation”. Due to the trapezoidal commutation, one of the three phases is (in relation to the hall-sensors) inactive...
View ArticleDRV10983 I2C Communications Interruptions
Hi there,I'm currently using the DRV10983 Motor Driver to control a Maxon motor EC flat 12VDC wihtout Hall sensor. The motor is used with a small impeller ( the assembly is nothing else than a fan ) ....
View ArticleDRV8308 CLKIN Pulse Width Min in Closed Loop
Are 3us active low pulses at 750Hz frequency acceptable for use as speed command at CLKIN terminal of DRV8308 that is configured in closed loop speed control?What is the minimum allowed pulse width on...
View ArticleDRV8711 Unclearable Fault
I have been using a BOOST-DRV8711 module in conjunction with an MCU development board to drive a motor. I have been using this setup for several days. Yesterday, the BOOST-DRV8711 asserted nFAULT and I...
View ArticleDRV8832 without PWM
Hi, I use DRV8832 to operate a small motor, 3.3V Vcc supply. For current limitation, 1 Ohm of Isence resistor is inserted. I read the datasheet of DRV8832, but I don't understandhow to deal with, and...
View ArticleDRV8301 shunt current measurement for an instantaneous measurement
I am using the DRV8301 for an actuator, that is not a spinning motor. If I switch on two MOSFETs of my H-bridge for a set duration in time, will the output of the shunt current op amp circuit be...
View ArticleDRV10983, Runtian motor
I need some help about drv10983 driver and runtian motor:1)While interfaced the driver to motor with default settings on no load, motor is successfully rotating with high speed.Right now, I'm using...
View ArticleDRV8412 heating without load, faulting
Hi, having some issues with the DRV8412 driver. I've read descriptions of similar-sounding issues, but nothing that exactly describes this situation. Setup:-using a single +12V power supply for both...
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DRV8834 Hi-z level
Hi,DRV8834 shows some input pin has the pull low resistor around 200Kohm. But in some application, M0/M1 need to be the high impedance mode. Does the MCU need a special seting? BTW, do you have any...
View ArticleDRV10983, BLDC motor driver
I have few doubts about DRV10983:-1)How I will get maximum speed(In my application it has to get a minimum speed of 1500 rpm but i stucked at 750rpm) of Runtian motor on maximum load? Can any suggest...
View ArticleDRV 8842 Internal Over Current Protection is Faulting to soon?
Hello,I am attempting to use 4 DRV8842's to drive 2, 24V 5A Stepper Motors. Since I am new to this device I set it up on a breakout board.Rough Schematic is...
View ArticleDumb down the DRV8301
Can I dumb down the DRV8301 to be like a primitive gate driver? No current faults.I also need the inverter voltage separate from the gate driver supply voltage. Gate driver at ~12V and inverter...
View ArticleTuning of Stepper motor Controller using DRV8825
We are designing a stepper motor driver for CNC machine. I have following questions regarding that.(Our motors are 24V 2A Bipolar stepper motors and we want to run them with 1/8 or 1/16...
View ArticleDRV8805 SM pin input
HiMy customer is using DRV8805.I'd like to confirm whether SM0 pin can connect 5V supply directly.This pin has internal 100k-ohm pull-down register. I think this is no problem. In datasheet, input...
View ArticleDRV8711 - Functionality
HelloThis is Jagdish, I would like get some technical support on DRV8711, I have below following technical questions can you please confirm its functionality.. a) When I connect 2 dc motors...
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DRV8711-BOOST SPI read issue with MSP430G2553 launchpad
Hi,I have a DRV8711-boost attached to a MSP430G2553 launchpad. I successfully flashed the MSP. The DRV8711 GUI works and I was able to let my motor spin. I was also able to reconfigure it to different...
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