TL431LL

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 6

www.unisonic.com.tw

QW-R103-072.a



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Cathode Voltage

40

V

Cathode Current Range (Continuous)

-100~150

mA

Reference Input Current Range

10

mA

Power Dissipation

370

mW

Junction Temperature

150

°C

Storage Temperature

-65~150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

RATINGS

UNIT

Cathode Voltage

V

Cathode Current

0.05~100

mA

Operating Ambient Temperature Range

-40~125

°C



THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Case

113

°С/W



PARAMETER

Test

Circuit

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference Voltage

0.5%

1

2.487 2.500 2.512

V

1.0%

2.475 2.500 2.525

V

Deviation of Reference Voltage

Over Full Temperature Range

1

0~70°C

4.5

8

mV

-40~85°C

4.5

10

mV

-40~125°C

4.5

16

mV

Ratio of Change in Reference

Voltage to the Change in Cathode

Voltage

2

-1.0

-2.7

mV/V

-0.5

-2.0

mV/V

Reference Current

2

R2=∞

0.035

0.5

µA

Deviation of Reference Current

Over Full Temperature Range

2

0.03

0.3

µA

Minimum Cathode Current for

Regulation

1

10

50

µA

Off-state Cathode Current

3

0.05

1.0

µA

Dynamic Impedance

1

f≤1.0kHz

0.5

Ω