ZTL431ACSTZ datasheet(3/12 Pages) ZETEX

3 / 12 page

ZTL431, ZTL432

Issue 8 - April 2007

www.zetex.com

Recommended operating conditions

Electrical characteristics

Electrical characteristics over recommended operating conditions, TA = 25°C, unless otherwise stated.

Min

Max

Units

VKA

Cathode voltage

Vref

IKA

Cathode current

100

Operating ambient temperature range

-40

125

°C

Symbol Parameter

Conditions

Min.

Typ.

Max.

Units

VREF

Reference voltage

VKA = VREF

IKA = 10mA

ZTL43_A

2.475

2.5

2.525

ZTL43_B

2.487

2.5

2.513

VDEV

Deviation of reference

voltage over full

temperature range

VKA = VREF

IKA = 10 mA

TA = 0 to 70°

TA = -40 to 85°C

TA = -40 to 125°C

ΔV

REF

ΔV

Ratio of change in

reference voltage

to the change in

cathode voltage

IKA = 10mA

VKA = VREF to 10

-1.4

-2.7

mV/V

VKA = 10V to 20V

-1.0

-2.0

IREF

Reference input

current

IKA = 10mA, R1 = 10k

R2 = OC

µA

ΔI

REF

IREF deviation over full

temperature range

IKA = 10mA

R1 = 10k

R2 = OC

TA = 0 to 70°C

0.8

1.2

µA

TA = -40 to 85°C

0.8

2.5

TA = -40 to 125°C

0.8

2.5

IKA(MIN) Minimum cathode

current for regulation

VKA = VREF

0.4

0.6

IKA(OFF) Off state current

VKA = 20V, VREF = 0V

0.1

0.5

µA

Dynamic output

impedance

VKA = VREF, f = 0Hz

0.2

0.5

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