RE: DRV8842: DRV8842 about the OCP issues
Hi Rick, I would like to explain my words. I said the motor stalled. That is the motor is locked rotor. The customer uses a brush motor. The rated current is 1.5A for the motor. The rated voltage is...
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RE: DRV8711: Overcurrent shutdown while running: current regulation doesn't...
Hello,now I have a direct junction between the bridge supply and the driver supply. The overcurrent errors nearly disappeared and I also can use a lot more current. In the image I attached you can see...
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DRV8711: Overcurrent shutdown while running: current regulation doesn't work...
Part Number: DRV8711Hello,we are using the DRV8711 driver IC in an application with this stepper motor: Nanotec ST8918M6708 (https://de.nanotec.com/produkte/566-st8918-schrittmotor-nema-34/).The...
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DRV8801: VPROPI Output current
Part Number: DRV8801I am using the DRV8801 with a total of 50K load resistance on the VPROPI output pin, with the resistance the voltage is reading 1.31V ( this is not 5X the current) if i remove the...
View ArticleRE: drv110
David, I apologize for the inconvenience this caused you. I submitted the request to update the datasheet today to better describe the operation of the STATUS pin. The changes should be live on the web...
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Would like a live Engineer to contact me directly at 781-565-1370 to discuss the following observation:STATUS pin goes high even though I do not see a thermal issue or under-voltage condition on the...
View ArticleRE: DRV8871: The maximum rise time and fall time of IN1/2(logic input)
Hi Tao2199, We expect the inputs to be controlled by an mcu, which has outputs in the 20ns/V range. What type of anomalous oscillation is observed? This could be due to noise causing the inputs to...
View ArticleDRV8871: The maximum rise time and fall time of IN1/2(logic input)
Part Number: DRV8871Hello, Regarding to IN1/2(logic input) on DRV8871, my customer is asking a question.(Question)･How is rise time and fall time in IN1/2?I am understanding that generally, the maximum...
View ArticleRE: DRV8842: DRV8842 about the OCP issues
Hi Mickey, The DRV8842 does not have the ability to output a FAULT signal on motor stall. There are two devices in the portfolio that can detect stall, the DRV8830 and DRV8832. The operating voltage is...
View ArticleDRV8842: DRV8842 about the OCP issues
Part Number: DRV8842Hi Team,The customer is using DRV8842. When OCP occurs, the nFAULT outputs a low level. The customer would like to use this low level signal as a detectionsignal in his design when...
View ArticleRE: DRV8830: VIH for I2C line
Hello Rick-san, I have one more question about VIH. What is the acceptable maximum voltage when VCC=6V supply ? Is it only up to 3.3V or can it accept VCC voltage which is 6V ? Test condition shows...
View ArticleRE: DRV8830: VIH for I2C line
Hi Kawai-san, At VCC=6V, the recommended maximum voltage is 6.5V. Above that, diodes may begin to forward bias. The IIH 3.3V test condition provides pulldown information for a 3.3V mcu.
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DRV8830: VIH for I2C line
Part Number: DRV8830Hi Team,Please allow me to ask you about VIH level for I2C line used in DRV8830. Below is the specification in the datasheet.[Question]Does this mean that when VCC = 6.0V, the...
View ArticleDRV8812: OCP time
Part Number: DRV8812Hi,Could you let me know the value of OCP time, please?OCP time means the description of 7.4.6.1 Overcurrent Protection (OCP) in datasheet."If this analog current limit persists for...
View ArticleRE: DRV8308EVM: Use Back EMF instead of Hall Sensors?
Hi Bryan, It may be possible, but is not recommended due to the complexity. Prior to starting the motor, there is no Back EMF. To start the motor, the hall inputs would have to be sequenced in the...
View ArticleDRV8308EVM: Use Back EMF instead of Hall Sensors?
Part Number: DRV8308EVMIs it possible to use Back EMF instead of Hall sensors on the DRV8308? Perhaps a biasing circuit and comparator on each phase?The DRV8308 seems perfect for our design, but most...
View ArticleRE: finding a motor driver to 0308 FAULHABER's motor
Hi Sam, Our experts have been notified and should reply soon.
View Articlefinding a motor driver to 0308 FAULHABER's motor
hello,I am trying to find a motor driver to the FAULHABER 0308 sensor-less BLDC motor that i am...
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