RE: WSON-8 conversion board?
Hi Kevin, If you remove R3 and R4 from the DRV8837EVM you can then use TP1 and TP2 to supply your own control signals to the DRV8837. nSLEEP can be controlled by supplying an external signal to JP2. If...
View ArticleRE: WSON-8 conversion board?
Hi Kevin, The DRV8837EVM can be modified to allow external control. Please refer to the schematic. R3, R4, and R5 can be removed. If you prefer to use a wson to dip board, I suggest you search online...
View ArticleRE: WSON-8 conversion board?
Thanks for fast responses. I'd prefer to find adapter boards in lieu of buying more than I want and modifying. I have searched well over a hour for boards without success (obviously). I'd appreciate a...
View ArticleRE: DRV8301 Fault
Hi Neerajnayan, Have you tried probing DVDD during this fault condition? A DVDD undervoltage fault would be reported on the nFAULT pin but not in the SPI Status Register. This pin should not be used to...
View ArticleRE: DRV8881E / nFAULT
Hi Rick-san,I understood nFAULT pin should be pulled up to mcu VCC (3.3 or 5V typically) because of ABS max as you said..It is helpful for my customer if you check the value as a reference.Best...
View ArticleRE: DRV8881E / nFAULT
Hi Yaita-san, nFAULT is active to approximately VM=1.8V. This assumes the device is awake (nSLEEP = logic 1) when VM is dropping. If nSLEEP is a logic 0, nFAULT is not active for any VM voltage.
View ArticleDRV8881E / nFAULT
Hi Team,I understood nFAULT pin will be driven low when VM pin falls below the undervoltage lockout threshold voltage(6.4V max).If VM gradually falls continuously less than 6.4V, when does nFault go to...
View ArticleRE: Problem with (DRV8701 + MOSFET) connected to a DC motor load
Hi Rick,I found the problem, Vref of DRV8701E had no voltage. I added a voltage divider to AVDD it started working.This explains why it was working under no load.Thanks for the reply.Regards Sugandar
View ArticleRE: WSON-8 conversion board?
Hi Kevin, There are several companies that offer a similar product. Search for DRV8838 Single Brushed DC Motor Driver Carrier The DRV8838 has the same number of pins, but the two inputs pins function...
View ArticleRE: WSON-8 conversion board?
Thanks again, I like the 38 but Mouser has only the 37, I can use either one (I write the swre). The word "carrier" is what missed, and searches can be real specific. TNX, Kevin Sargent
View ArticleWSON-8 conversion board?
I want to evaluate the DRV8837, but the WSON-8 is so small.TIs development board has its own uC and software, I need to use mine.Does anyone make a WSON-8 to DIP board (with suggestions on how to put...
View ArticleRE: DRV8301 Fault
Hello Phil, I am powering up the DRV8301 card of the BOOSTXL-DRV8301 using the 24V (PVDD), and I find on probing on the board that all the internal supplies of the DRV (DVDD, AVDD, GVDD) derived...
View ArticleDRV8301 Fault
We are working with the DRV8301 eval board which is part of the Motor Drive Booster Pack. We are interfacing this board with an STM controller eval board that we are using in our project. We are facing...
View ArticleRE: DRV8412 Sense resistor current
Hi SGIf 24V 350mA motor, we can use many other DRV8x solutions. Such as DRV8881 E or P for two BDC. Or DRV8801 for one BDC. Any special reason to use DRV8412?If only for BDC control, we can only use...
View ArticleDRV8412 Sense resistor current
Hello,I have following two question on DRV8412DDW Evaluation board.(1) I am driving DC brushed motor in forward direction -I am seeing PWM signal on PWMA and nothing on PWMB as expected. Why do i...
View ArticleRE: DRV8835 Peak Current
Hi Wilson, Understood, I will discuss with my customer. Thanks very much!
View ArticleDRV8835 Peak Current
Hi Expert,What's DRV8835 peak current and duration capability? Thanks!
View ArticleRE: DRV8332 FAULT timing?
Hi Rick,I am triggering on an over current event (Fault driven low) and capturing the current waveforms. I was wanting to know where to look for the event that causes the over current since it is not...
View ArticleRE: DRV8824 1M-ohm resistor at Charge pump
Hi Shimizu-san, I consulted our designer and will respond as soon as I hear back.
View ArticleRE: Help me find the suitable motor driver for BLDC servo application
Vivek,Just to add that the DRV10970 is a fully integrated motor controller (with MOSFETs) that supports sensored sinusoidal BLDC control. It is though designed for <20V applications but just want to...
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