Part Number: DRV8840 Tool/software: Hello team,
From below example circuit from datasheet, may I ask:
1. What is the role of the 1Mohm resistor between VCP and VM?
2. Is this resistor absolutely neccessary, or could we design circuit without this…
Part Number: DRV8840 Tool/software: Hi Forum,
i've used the DRV8840 in a recent design and cannot get it to work. I've tested two different boards, both were manufactured by a professional company so soldering is not an issue.
I've used two different…
Part Number: DRV8840 Hi
I use DRV8840PWP on my design. But i have no voltage at the output. You can see my sch below.
- I see 3v3 correctly at the nSleep, nReset, Phase and Enable pins. ( As i apply )
- I se 3v3 correctly at the V3P3OUT.
- I…
Part Number: DRV8840 Tool/software: Hi,
Just wanted to check whether anyone has faced the same problem. So we thought that our motor was broken (DC brushed motor 24VDC) but it was investigated by the manufacturer that it´s not.
Still we have issues…
Part Number: DRV8840 Tool/software: Hi,
We have found out that applying some capacitance to DRV8840 Out parallel to BDC motor makes startup peaks lower. However sometimes we still encounter nFAULT to activate.
In current design we cannot nRESET the…
Part Number: DRV8840 Hi expert,
How long is DRV8840 OCP time described in datasheet? I didn't find such spec in datasheet.
In another thread: (+) DRV8840: maximum OCP current and OCP decision timing - Motor drivers forum - Motor drivers - TI E2E…
Part Number: DRV8840 Dear Specialists,
My customer is encountering the same situation.
I would be grateful if you could advise.
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According to the related thread, the conditions for an overcurrent event are commented as current >6A 3.75us±30…
Part Number: DRV8840 Hello
I want to use DRV8840PWP on my project. However i do not want to use Current set inputs pins of DRV8840PWP. ( I0-I1-I2-I3-I4 / 23-24-25-26-27 ).
I will not use current regulation. So i tied ISENSE pin to GND and VREF pin…
