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CCS/DRV8885EVM: DRV8885EVM Firmware Bug?
Part Number:DRV8885EVMTool/software: Code Composer StudioHi All,I'm experiencing some trouble with the DRV8885EVM's firmware (FW). The FW seems to ignore G_MAUNAL_ADVANCE commands from both my...
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DRV8301: DRV8301 Lock-Up Issue
Part Number:DRV8301My customer is seeing the following issue and I do not understand how this can be happening:We are using the DRV8301 in our product, and recently we had a request from a customer to...
View ArticleDRV8871: Using as a transformer driver
Part Number:DRV8871I'm designing an H-Bridge circuit to drive a transformer for an unregulated isolated supply (similar to MAX13256). There needs to be dead-time control for the FETs, and overcurrent...
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DRV8811: Incorrect current regulation
Part Number:DRV8811Hi,My customer has a problem.Some DRV8811s cannot regulate the motor current correctly at setting small chopping current.Please see the below waveform.Waveform1 is incorrect...
View ArticleDRV8870: Absolute maximum ratings of VM, OUT1 and OUT2 in case of transient
Part Number:DRV8870Hi allWould you mind if we ask DRV8870?The datasheet shows Absolute maximum ratings of VM, OUT1 and OUT2 in case of DC.How much is Absolute maximum ratings of VM, OUT1 and OUT2 in...
View ArticleCCS/BOOSTXL-DRV8301: Current to high when motor spin
Part Number:BOOSTXL-DRV8301Tool/software: Code Composer StudioHi, I am using a custom board using TMS320F28027F with DRV8301. The motor I have is to be spinning at maximum speed of 31000 rpm with no...
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DRV110: Current unexpectedly changes with voltage to solenoid
Part Number:DRV110Hello,We have built a custom board designed from your reference design for the 24V solenoid. However, we are using a 28V solenoid and are not powering any other circuitry from the...
View ArticleDRV10970: Trapezoidal Commutation With 0° Hall Placement
Part Number:DRV10970How does one configure the DRV10970 to work in trapezoidal commutation with 0° Hall placement? Table 4 of the data sheet offers only the 30° option for trapezoidal commutation.The...
View ArticleDRV8835: reduce motor starting current
Part Number:DRV8835Hi,DRV8835 is to reduce motor starting current.As a measure to reduce the motor starting current, we are considering changing the VM voltage (For example VM=3.0V → 7.0V).1. Is this...
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DRV8871: How to connect DRV8871 GND and PGND in Layout
Part Number:DRV8871HiHow to connect GND and PGND in Layout? In this layout recommendation, GND and PGND are not connected together, so where to connect them? How to connect? Connect directly or use...
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DRV595: Startup voltage issue
Part Number:DRV595I have the circuit designed using DRV595. This circuit works fine under 13V input voltage. However, when the input DC voltage is above 13V, it cannot startup. I can start at 12V and...
View ArticleDRV10983: drv10983
Part Number:DRV10983Dear sir,we use drv10983 for controling of 24v bldc based celing fan control...we speed control using pwm...we also want to know what pwm frquency we use for drive drv10983...Please...
View ArticleDRV8701: over current protection of high side FET
Part Number:DRV8701We would like to use the DRV8701. The question is: The built-in "overcurrent monitor" protects especially the high side FET. We require at least two different cut-off limits for our...
View ArticleDRV8837: two questions about DRV8837
Part Number:DRV8837Now，I am using DRV8837 drving a 3.6V/1.8A motor ，but a period of time later，I will drive a 12V/2A motor，Can I use two DRV8837 in parallel?At the same time，DRV8837 is controlled by...
View ArticleDRV8842: Motor reverses direction when stopped
Part Number:DRV8842Hello, I am interfacing a DC motor with MSP430G2553 microcontroller using DRV8842. I am using current regulation with I[4....0] = 00001 i.e 5% relative current.1.With...
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DRV8701: MOSFET Failures
Part Number:DRV8701Hi,I have been having a few issues with the MOSFET failures that I believe Vref should be protecting against.Setup:-24V 24.5A BDC Motor-24VAC toroid rectified to 34VDC high current...
View ArticleBOOSTXL-DRV8301: 2nd quadrant operation from single quadrant power supply
Part Number:BOOSTXL-DRV8301Hi,I would like to use the F28069M kit in combination with the BoostXL-DRV8301 for 2nd quadrant operation (in generator mode). The motor of this kit will be coupled to...
View ArticleDRV104: PWM duty cycle < 10%
Part Number:DRV104Hello,The datasheet for DRV104 states that the duty cycle can be varied from 10% to 90% using analog voltage from 1.501V to 3.589V (Page 9 of datasheet). Fig 19 on page 16 mentions 5%...
View ArticleStarterware/DRV8301: DRV8301 for driving a single Phase BLDC
Part Number:DRV8301Tool/software: StarterwareHello,has anyone used the DRV8301 to drive a single phase brushless Motor?We have the DRV8301-69-Kit and need to drive a single Phase BLDC Motor,so I was...
View ArticleDRV110: DRV110APWR
Part Number:DRV110Hi, I need information about Ipeak tolerances which is made by choose of Rpeak resistor. According the data sheet on page 6 in Electrical char. Current controller internal settings...
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