Zhivko,
Your conclusions from your scope shot and experiment of changing the resistors are reasonable to me. It looks like having additional impedance in the gate-drive path was causing the issue. Thanks for doing this experiment and sharing your data…
Part Number: DRV8703D-Q1 Other Parts Discussed in Thread: DRV8703-Q1 , Hai,
Thanks for responding my previous queries.
I want to connect a 12V DC motor which draws little less than 3A of current on no load. And may go up to 40A on full load.
Please…
Hi user6216182,
This is expected behavior. The DRV8702-Q1, DRV8703-Q1, DRV8702D-Q1, and DRV8703D-Q1 monitor the charge pump as the device is waking and entering sleep.
nFAULT is asserted during this time.
Please refer to
The nFAULT assertion…
Uchihara,
This is not only a current limit issue, but also could be a thermal issue. The power dissipation could increase 40% from 10A to 12A.
So, I would recommend change to an external FET solution. Do you use DRV8873H (hardware pin setting version…
Part Number: DRV8701 Other Parts Discussed in Thread: DRV8703-Q1 , OPA365 Hi,
I am using DRV8701E to drive 60A current rating motor by connecting mosfet in parallell. Everything works as expected.Now i want to monitor current using SP and SN across…
- Operating voltage is 12 V nominal now, so should be valid
- 3.3V is available on the board and approx 3.29 V so perfect
- Tried 2 different USB cables, 2 PC`s,
- COM port number is correct
- COM port settings will be verified
- There is no…
Part Number: DRV8801A-Q1 Other Parts Discussed in Thread: DRV8703-Q1 , DRV8801 , Can i drive an external FET for reverse battery protection using the charge pump of the DRV8801A-Q1? There is no information in the datasheet about the charge pump. In the…
Hi Shiraz,
Answers to your questions inline. Thank you:
>How does the IC manage the starting current for the motor is it inherently controlled by the IC or we have send the command for that also (for softstart of the motor).
-> The drivers manage…
Hi Avraham,
"1. From what i read so far, i was under the impression that the DRV8702 does not include SPI interface in it, however in its EVM softawere, big part of it's code is about updating data to registers using SPI (like in the DRV8703).
…
Hello Mark,
I would like to see the schematic and layout for your product. You can send them to me in a private message if you don't want to post them on the forum.
If you probe the supply pin of the DRV8703 when IN1 and IN2 are low, do you see any…
