Hi Joyce,
Do you have any updates on your side? I have verified that the tocp is on the order of 3 us and the Iocp is 6A. This was done by putting a 3-ohm resistor on the output and I have captured the current waveform below:
Best,
Keerthi
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 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 see about…
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 to V3P3. …
Part Number: DRV8840 Dear Specialists,
The customer is considering DRV8840 and has questions.
I would be grateful if you could advise.
• What is the state of nFAULT while nRESET is low?
Is it in a high impedance state?
• If the error condition persists…
Part Number: DRV8840 Hi team,
Here's an issue from the customer may need your help:
The device outputs and connects 104 capacitors on OUT1, OUT2, drives at 25 KHz, 80% duty cycle, circuit around 1A. Why the chip would have abnormal heat condition…
Part Number: DRV8840 Hello, I have some concerns about my circuit with DRV8840 driver. In design I don't have any MCU, only logic based on simple circuits and gates. M otor is BDC combined with gearhead (~200:1). So I'm using chopping current to limit…
Part Number: DRV8840 Other Parts Discussed in Thread: DRV8873 , DRV8243-Q1 , DRV8244-Q1 , DRV8245-Q1 I ask if it' s possible to connect together n°2 driver DRV8840 in parallel to reach a double current, so 10amps instead of 5amps?
thanks