BOOST-DRV8711: Current Measuring

Hamdy Elasawy

Prodigy 145 points

Part Number: BOOST-DRV8711
Other Parts Discussed in Thread: DRV8711

is the DRV8711 BOOSTER have a FEEDBACK CURRENT Control .

is there a mechanism that i can measure the Current using the DRV8711 BOOSTER SHUNT resistor By the MCU ?

over 6 years ago

0 Wang5577 over 6 years ago

TI__Guru 56650 points

Hamdy,

DRV8711 uses an external shunt resistor to sense the current. If you have an amplifier circuit for current sensing and MCU ADC function, it is possible to measure the current on the shunt resistor.

0 Hamdy Elasawy over 6 years ago in reply to Wang5577

Prodigy 145 points

is there is a pin at the DRV8711-BOOST that i can Take The Current Measurement From, or i have to disolder The Sense Resistor to take measurement points.

is the DRV8711 BOOSTER have a FEEDBACK CURRENT Control

0 Hamdy Elasawy over 6 years ago in reply to Wang5577

Prodigy 145 points

Wang,

Any Updates , we have a lot of tasks are held due to this problem.

0 Wang5577 over 6 years ago in reply to Hamdy Elasawy

TI__Guru 56650 points

Hamdy,

From the user's guide (http://www.ti.com/lit/ug/slvu967/slvu967.pdf ), I didn't see DRV8711-BOOST can take the current measurement from the Sense Resistor.

DRV8711 has internal PWM current regulation circuit. DRV8711-BOOST doesn't have a FEEDBACK CURRENT Control.

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BOOST-DRV8711: Current Measuring