LR9273

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

9 of 9

www.unisonic.com.tw

QW-R502-A30.a



TYPICAL APPLICATION CIRCUIT(Cont.)

An external pair of resistors is required, as shown above.

The complete equation for the output voltage is described step by step as follows;

I3=1.0/R3 ………… (2)

Thus,

Therefore,

Put Equation (3) into Equation (4), then

In 2nd term, or R2×IIC will produce an error in VOUT.

In Equation (5),

For better accuracy, choosing R2(<<RIC) reduces this error.

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