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DRV8461: 7.3.11 Current Sensing with External Resistor

?? ??

Prodigy 10 points

Part Number: DRV8461

Does the placement of an external sense resistor affect the PWM current regulation?

Also, what is the resistance value of the internal current detection?

0 Karan Doshi 10 months ago

TI__Intellectual 2450 points

Hi,

Please give me a day to respond to this.

Regards,
Karan

0 Karan Doshi 10 months ago in reply to Karan Doshi

TI__Intellectual 2450 points

Hi,

Sorry, still looking into this. Will get back to you by end of the week.

Regards,
Karan

0 Karan Doshi 10 months ago in reply to Karan Doshi

TI__Intellectual 2450 points

Hi,

Please refer to the data sheet sections 7.3.8 and 7.3.11 for explanation on how the current mirror architecture works and how the optional external sense resistor can be used.

Regards,
Karan