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DRV8412 current limit control

Linas Svilainis
Prodigy 40 points
Other Parts Discussed in Thread: DRV8412

Hello,

 

we want to have a digital control over current limit in DRV8412. I have few questions:

1.Can you explain the internal circuitry for current setting (OC_ADJ)?

2.Though not sure, but I suspect that there will be reference source and a current mirror. Then comes another question-can we use DAC for AC_ADJ pin to control the current?

3.The 1ohm resistor btw GND and AGND will affect the settings?

Linas