Current sense chip

user5977574

Hi,

I don't know how to calculate current monitor chip SN1906023-Q1 itsself power dissipation. can you provide related method?

over 4 years ago

0 Ed Walker over 4 years ago

Prodigy 5 points

Hello user5977574

Thank you for your post, however the device you mention is not in our database.
Please recheck the part marking and reply.
Attaching a picture of the device will help. Use the insert media button for picture attach.

0 Javier Contreras4 over 4 years ago in reply to Ed Walker

TI__Mastermind 26475 points

Hello user,

To calculate the power get the max IQ of the device and multiply by the VCC you are applying to the supply pin. If the output is driving a load you need to account for that current as well in the IQ. You should also use the maximum output current you are expecting.

0 user5977574 over 4 years ago in reply to Javier Contreras4

Prodigy 135 points

Hi Javier

Thanks for your support.

This current sense output is connected to MCU two ADC pin for monitor, so as to calculate the power dissipation, current should be IQ+Iout_ADC？and Power dissipation=Vs*(IQ+Iout_ADC)?

0 Javier Contreras4 over 4 years ago in reply to user5977574

TI__Mastermind 26475 points

Hello User,

That is correct. Normally the input to an ADC will be minimal and will not impact the power calculation much.

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Current sense chip