INA226: INA226 Current sensing range.

JEEHOON CHUNG

Prodigy 40 points

Part Number: INA226

Tool/software:

Hello

I want to monitor current of the load,

INA226 can be measured the below current spec. ?

Required Spec.

1. Current sesnsing Range : 200 uA ~ 500mA

2. DC Power : 12 V

Thanks.

2 months ago

0 Mallika Senthil 2 months ago

TI__Intellectual 1910 points

Hi Jeehoon,

The shunt voltage input range is +/- 81.92mV and the Ib is 10uA. Assuming you're using a shunt resistor of 2mOhms, your current sense range would be within the rated spec and however your minimum current of 200uA is of the same order as the Ib (10uA), so you may see some offset in your readings.

Best,
Mallika Senthil

0 JEEHOON CHUNG 2 months ago in reply to Mallika Senthil

Prodigy 40 points

Hi. Mallika Senthil

you meaned that I can monitor current from 200uA to 500mA (12 V DC on Load device) if I use to test it with INA226 Evaluation Module.

is it riight?

Best regards

+1 Mallika Senthil 2 months ago in reply to JEEHOON CHUNG

TI__Intellectual 1910 points

Yes you can measure that range of current, but there will be 10uA of offset.

Best,
Mallika Senthil

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INA226: INA226 Current sensing range.