The input range of the INA139

Masami Michino

Other Parts Discussed in Thread: INA139

Dear, All

I have a question about the Vsense of INA139.
Maximum Sense voltage is described as 500 mV.
The absolute maximum ratings are defined as 2V.
Please tell me the operation when multiplied by the 2V less than voltage higher than 500mV to Sense voltage?

Thanks, Masami M.

over 8 years ago

0 Mayrim Verdejo over 8 years ago

TI__Genius 15760 points

Hi Masami-san,

We recommend you use the number listed in the Electrical Characteristic Table as your maximum for better device performance. If you go above this number but below 2V there won't be any damage to the device.

Regards,

0 Masami Michino over 8 years ago in reply to Mayrim Verdejo

Genius 5070 points

Hi, Mayrim-san

Thank you for your reply.
I answer it to the customer.

Thanks, Masami M.

0 Masami Michino over 8 years ago in reply to Mayrim Verdejo

Genius 5070 points

Hi, Mayrim-san

It is an additional question.
The customer is connected as in Figure 9 that are described in page. 6 the datasheet.
In addition connecting the V + to Vp.
In this configuration, the customer will want to measure the inrush current when the power is turned on.
They want to know the time to be output normally to confirm power.
Vp is, 6V, 12V, 16V.

Thanks, Masami M.

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The input range of the INA139