ZTLV431 datasheet(3/8 Pages) DIODES

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ZTLV431

Issue 7 - April 2008

www.zetex.com

Electrical characteristics (electrical characteristics over recommended operating

conditions, TA = 25°C, KKA = VREF, IKA = 10mA unless otherwise stated)

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:

The dynamic output impedance, ZKA, is defined as:

When the device is programmed with two externalresistors, R1

and R2, (fig 2) , the dynamic output impedance of the overall

circuit, Z’, is defined as:

Symbol

Parameter

Conditions

Min.

Typ.

Max. Units

VREF

Reference voltage

ZTLV431A

1.228

1.24

1.252

TA = -40 to 85°C ZTLV431A

1.215

1.265

TA = -40 to 125°C ZTLV431A

1.209

1.271

VREF(dev)

Deviation of reference

voltage over full

temperature range

TA = 0 to 70°C

TA = -40 to 85°C

TA = -40 to 125°C

Ratio of change in

reference voltage to

the change in cathode

voltage

VKA from VREF to

IKA = 10mA

-1.5

-2.7

mV/V

10V

-1.5

-2.7

IREF

Reference input current

IKA = 10mA, R1 = 10k ., R2 = OC

0.1

0.5

µA

IREF(dev)

IREF deviation over full

temperature range

IKA = 10mA,

R1 = 10k ,

R2 = OC

TA = 0 to 70°C

0.05

0.3

µA

TA = -40 to 85°C

0.1

0.4

TA = -40 to 125°C

0.15

0.5

IKMIN

Minimum cathode

current for regulation

VKA = VREF

TA = -40 to 125°C

100

µA

IK(OFF)

Off-state current

VKA = 10V, VREF =0V

µA

zKA

Dynamic output

impedance

VKA = VREF, f = <1kHz,

IK = 0.1 to 15mA

0.25

0.4

ΔV

REF

ΔV

-----------------

Vmax

Vmin

Vdev =Vmax -Vmin

Temperature

REF

ppm

°C

-------------⎠

⎞

⎝

⎛

DEV x 1000000

REF T

–

()

------------------------------------------

ΔV

ΔI

----------

′

KA x

()

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