TL431LP datasheet(3/6 Pages) CALOGIC

3 / 6 page

TL431

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

ELECTRICAL CHARACTERISTICS

Electrical Characteristics are guaranteed over full junction temperature range (0 to 105

oC). Ambient temperature must be derated based on

power dissipation and package thermal characteristics. The conditions are: VKA = VREF and IK = 10mA unless otherwise stated.

SYMBOL

PARAMETER

MIN

TYP

MAX

UNIT

TEST CIRCUIT

TEST CONDITION

VREF

Reference Voltage

2.470

2.495

2.520

TA = 25

2.449

2.541

Over Temp.

∆VREF with Temp.*

0.07

0.20

mV/

oC1

∆VREF

∆VK

Ratio of Change in VREF to

Cathode Voltage

–2.7

–1.0

mV/V

VREF to 10V

–2

–0.4

0.3

10V to 36V

IREF

Reference Input Current

0.7

µA2

∆IREF

IREF Temp Deviation

0.4

1.2

µA

Over Temp.

IK(MIN)

Min IK for Regulation

0.4

IK(OFF)

Off State Leakage

0.04

250

VREF = 0V, VKA = 36V

ZKA

Dynamic Output Impedance

0.15

0.5

Ω

≤ 1kHz, IK = 1 to 150mA

105

TEMPERATURE (˚C)

0.07 mV/˚C

0.003 %/˚C

27 ppm/˚C

0.5

5000

–10

∆V

REF

∆T

1G-37

• TC in mV/oC =

∆VREF

(mV)

∆TA

• TC in %/oC =







∆VREF

VREF at 25







x 100

∆TA

• TC in ppm/oC =







∆VREF

VREF at 25







x 10

∆TA

*CALCULATING AVERAGE TEMPERATURE COEFFICIENT (TC)

TEST CIRCUITS

1G-38

REF

= V

REF

)

1G-39

K(OFF)

1G-40

TEST CIRCUIT 1

TEST CIRCUIT 2

TEST CIRCUIT 3

CORPORATION

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