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DRV8308 drive the high speed BLDC
Hi,I use the DRV8308 EVM to drive the blower, this motor is 2 poles, and the maximum speed is 50000 RPM. I use the PWM duty cycle control mode(drv8308 EVM GUI) to try this motor. This motor generate a...
View ArticleRE: DRV8301 Kit with F28069 MCU: Can kit do AC to DC?
I'm aiming to input 230 V (rms) AC from the network (eventually) and use synchronous rectification to convert this to 48 V DC (electric vehicle battery bank). I want to use the kit's transistors to do...
View ArticleRE: DRV595EVM fault
Hi Diego!Thanks for your reply. The problem occurs over a range of input voltages. My intention was to get maximum current out of the device. This I achieve from about 1.4V on IN+(IN- at GND) and PVCC...
View ArticleDRV595EVM fault
Dear DRV595 expert!I have purchased the DRV595EVM module and was inteding to use it to drive a TEC module.When testing the module seems to go into a fault state. It shut-s off for approcimately...
View ArticleRE: DRV8305 VDS Sense Control (0xC) RSVD Bits
Hi Macs, We will investigate and reply soon.
View ArticleDRV8305 VDS Sense Control (0xC) RSVD Bits
HelloOur customer write VDS Sense Control (Address 0xC) with "0x0088" since 16bits of data write required, including RSVD Bits,then, Read same address to confirm. However, Read data was "0x0288", RSVD...
View ArticleRE: DRV8844 "backward powered" problem
Hi Riccardo, We will investigate and reply soon. Can you clarify a few points?"Connect the power supply to a pair of the "OUTx" testpoints of the EVboard, e.g. OUT1 & OUT2." Did you connect the +...
View ArticleRE: DRV8301 Kit with F28069 MCU: Can kit do AC to DC?
Hi Stef,The DRV8301-HC-EVM-Rev D has a maximum voltage of 60V. As long as you keep the voltage and voltage spikes below 60V, it may be possible.One word of caution: Please note section 8.1.1 of the...
View ArticleDRV8301 Kit with F28069 MCU: Can kit do AC to DC?
GreetingsI am using a DRV8301 Kit with a F28069 MCU. I want to use it for an electric vehicle implementation. The implementation requires an electric vehicle battery to be charged (48V DC battery...
View ArticleRE: DRV8711 RDIR
Hi CGC, Sorry, I missed the section about the DRV8711EVM showing the same performance. The outputs should look different in many cases. This is due to the current regulation engine that is PWM'ing the...
View ArticleDRV8711 RDIR
Hello,We are designing a stepper motor driver using the controller DRV8711. The circuit is very similar to the evaluation board DRV8711EVM. Today, we discovered that the connected motor stalls at a...
View ArticleRE: DRV8838 EN pin question
Hi Rick We expected when PH changing from High to low( or low to high) the nSLEEP( SW) will remove automatically to high, If this can not done by this device, any solution recommended for this...
View ArticleRE: TI Alternative to STMicro L6235
Hi Mo. The closest match is the DRV8312. The DRV8312 requires external control of the inputs to sequence through the commutation states.
View ArticleTI Alternative to STMicro L6235
Hello Team,Please advise our closest alternative Driver to the STMicro L6235 3-Phase BLDC Driver with integrated...
View ArticleRE: DRV8844 "backward powered" problem
Hi Riccardo, Is JP2 installed when performing the experiment on the DRV8844EVM?
View ArticleRE: DRV8838 EN pin question
Hi NT, Changing PH has no effect on nSLEEP. The switch (SW1 or SW2) is holding nSLEEP at a logic 0, which has the device disabled. To workaround this, you may need another switch to set nSLEEP to a...
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RE: DRV8301-69M-Kit, issues with high duty cycles (PWM)
Hi Rick,I changed the OCP_MODE to OC latch shut down mode but the behaviour in case of an error remains exaclty the same. I recorded the voltages prior to the fault anyway:I changed the duty cycle of...
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DRV8301-69M-Kit, issues with high duty cycles (PWM)
Dear e2e-community,I am using the DRV8301-69M-Kit with Motorware version V1.01.00.16. I developed an application based on project lab04. In this application I want to assign three pwm duty cycles...
View ArticleRE: DRV8844 "backward powered" problem
Hi Rick,Thank you for your reply. Here are the clarifications you asked for:Q: "Did you connect the + side of the power supply to OUT1 and the - side to OUT2?"A: I tried all the possible polarity...
View ArticleRE: DRV8844 "backward powered" problem
Rick, I forgot to mention..... If you like to test also the following:"By the other hand, if I properly power up the driver before the test, this behavior doesn't shows up and the DRV8844 act exactly...
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