LR431AD datasheet(2/5 Pages) LRC

2 / 5 page

LRC

LESHAN RADIO COMPANY,LTD.

LUTE A I U RATING

ARA ETER

ALUE

UNIT

I A

°C

REC

ENDED

ERATING C NDITI N

ARA ETER

UNIT

I A

0.5

ELECTRICAL CHARACTERISTICS(Ta=25°C,unless otherwise specified)

Characteristic

Symbol

Test conditions

MIN

TYP

MAX

UNIT

0.5%

2.488

2.50

2.512

2.475

2.50

2.525

Reference Input Voltage 1

Vref

VKA=VREF,IKA=10mA

Deviation of reference Input Voltage

Over temperature

∆Vref

VKA=VREF,IKA=10mA

TMIN

≤TA≤TMAX

4.5

Ratio of Change in Reference Input

Voltage to the Change in Cathode

Voltage

∆Vref/∆VKA

IKA=10mA

∆VKA=10V~VREF

-1.0

-2.7

mV/V

∆VKA=36V~10V

-0.5

-2.0

Reference Input Current

Iref

IKA=10mA,R1=10k

,R2=

∞

µA

Deviation of Reference Input Current

Over Ful l Temperature Range

∆Iref/∆T

IKA=10mA,R1=10k

Ω,R2=∞,TA=

full Temperature

0.2

0.4

µA

Minimum cathode current for

regulation

IKA(min)

VKA=VREF

0.3

0.5

Off-state cathode Current

IKA(OFF)

VKA=36V,VREF=0

0.05

0.5

µA

Dynamic Impedance

ZKA

VKA=VREF,IKA=1 to 100mA

≤1.0kHz

0.15

0.5

Ω

Ver1.0

2/5

Power Dissipation(SOP8)

530

Thermal resistance

236

°C/W

Rja

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