ZR431G データシートの表示（PDF） - Zetex => Diodes

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ZR431G

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

Zetex => Diodes 

ZR431

DC TEST CIRCUITS

IL

Input

Input

VZ

I zoff

Fig 1 – Test Circuit for Vz=Vref

Fig 2 – Test Circuit for Vz>Vref

Fig 3 – Test Circuit for Off

State current

NOTES

Deviation of reference input voltage, Vdev, is defined as the maximum variation of the reference

input voltage over the full temperature range.

The average temperature coefficient of the reference input voltage, Vref is defined as:

Vmax

Vmin

Vdev = Vmax - Vmin

Vref ppm  °CVdVervefxT1100T0020 0

The dynamic output impedance, Rz, is defined as:

RZ



VZ

IZ

When the device is programmed with two external

resistors, R1 and R2, (fig 2) , the dynamic output

impedance of the overall circuit, R’, is defined as:

R’Rz 1 RR12

4-194

78

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