LL431

LINEAR INTEGRATED CIRCUIT

U

NISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R121-020.I



PARAMETER

SYMBOL

RATINGS

UNIT

Cathode Voltage

37

V

Cathode Current Range(Continuous)

-100 ~ +150

mA

Reference Input Current

-0.05 ~ +10

mA

SOT-89

500

mW

SOT-23-3/SOT-23

SOT-25

300

mW

SOP-8

600

mW

Power Dissipation

TO-92

770

mW

Junction Temperature

+150

C

Operating Temperature

-40 ~ +85

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

1 ~ 100

mA



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

LL431-A

2.483 2.495 2.507

V

LL431-1

2.470 2.495 2.520

V

LL431-2

2.520

-

2.545

V

Reference Input Voltage

LL431-3

2.445

-

2.470

V

Deviation of reference Input Voltage

Over temperature

0

4.5

17

mV

-1.0

-2.7

Ratio of Change in Reference Input

Voltage to the Change in Cathode Voltage

-0.5

-2.0

mV/V

Reference Input Current

1.5

4

μA

Deviation of Reference Input Current Over

Full Temperature Range

0.4

1.2

μA

Minimum Cathode Current for Regulation

100

μA

Off-State Cathode Current

0.05

1.0

μA

Dynamic Impedance

f

1.0kHz

0.5

Ω