Part Number: DRV8803EVM Hi Experts,
Seeking your assistance on this query:
My customer has been using the DRV8803EVM to power their QSH-6018-45-28-110 motor but the D3 led keeps blinking.
Any idea where that could come from?
Thank you.
Regards…
Rachel,
"I am producing a PWM wave when I go and look on the scope" I won't debugging the code.
After you connect TM4C1294XL PWM output to the DRV8803EVM, do you see the waveform changes?
If the PWM wave is changed after connecting to the EVM, would…
Hi Rachel,
You should be seeing some toggling at OUT2. This make me think that the device was damaged. I will try to recreate your set-up in the lab using the DRV8803EVM to see if I get the same results as you. If I do get the same results, then we…
Hi Skip,
The code is available on line. The source code can be found in the Hardware Design Files at www.ti.com/.../DRV8803EVM
The direct link is www.ti.com/.../slvc591
Hi Tor,
I tried to duplicate your finding on a DRV8803EVM and was not able to.
The DRV8803EVM was reconfigured to eliminate any additional current paths such as regulators, mcu, etc.
In all cases (nENBL high/low, nRESET high/low, INx high/low) with…
Gamze,
The thermal performance is relied on the PCB layout a lot. The datasheet gives the thermal resistance.
The power loss can be estimated by Rds(on) x Load current x Load current.
After we know the power loss and the thermal resistance…
Hi Alex,
The datasheet states 0.8A per channel continuous.
What evb is being used? If it is not the DRV8803EVM:
what is the size of the evb?
what is the copper thickness?
how are the 6 ground pins of the DW package connected to the board?…
Hi Shinichi-san,
Shinichi1 said: 1) the value of R and L at the test
Test 1 -- Inductor is 100uH, 14A, resistance of 20mOhm. Two test clips of 30mOhms and 200nH each connected the inductor to VM and OUT4.
Total inductance is 100.4 uH and total…
