ZR431C01 datasheet(6/7 Pages) DIODES

Part #	ZR431C01

Description	ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

PDF	7 Pages

Scroll/Zoom	100%

Manufacturer	DIODES [Diodes Incorporated]

Direct Link	http://www.diodes.com

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6 / 7 page

Input

Fig 1 – Test Circuit for V

z=Vref

DC TEST CIRCUITS

Fig 2 – Test Circuit for V

z>Vref

Input

zoff

Fig 3 – Test Circuit for Off

State current

ZR431

4-194

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:

Vref (ppm ⁄ °C)=

Vdev x 1000000

Vref (T1−T2)

The dynamic output impedance, Rz, is defined as:

RZ =

∆V

∆I

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’

z (1+

)

Vmax

Vmin

Vdev = Vmax - Vmin

ZR431C01 Datasheet(PDF) 6 Page - Diodes Incorporated