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Posts: 1
Registered: ‎01-29-2016

TS1105 Confusion

Having trouble understanding the use of this part.  The spec does't go all the way to describe how someone gets an accurate current result. You get a linear graph of results but then you have to mess with results to get current - and this isn't described.  The eval board spec gives you a test instead of showing results. Then:

I look at this: (use 3V VDD and 1.5Vbias example chart page11 of spec)

Is=2A

Rs=.01

Vs=20mV

Vout(20)=.4

but the example chart shows Vout at .4V to be something like a 55mV Vs.

Why different?

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Posts: 8,069
Registered: ‎08-13-2003

Re: TS1105 Confusion

then you have to mess with results to get current - and this isn't described

every app will have a different Rsense, so it would be impossible to put the current value in the datasheet.

strangely, this is a SILbs part DigiKey does not carry

erik