TL431

INTEGRATED CIRCUIT

R

DC COMPONENTS CO., LTD.

TECHNICAL SPECIFICATIONS OF ADJUSTABLE SHUNT REGULATOR

Features

* Programmable output voltage

* Temperature compensated for operation over

* Full temperature range

* Low output noise voltage

* Fast turn on response

Pinning

1 = Reference

2 = Cathode

3 = Anode

Characteristic

Symbol

Rating

Unit

Cathode to Anode Voltage

37

V

Cathode Current Range(Continuous)

-100 to +150

mA

Reference Input Current Range

+0.05 to +10

mA

Power Dissipation

225

mW

Operating Temperature Range

0 to +70

o

C

Storage Temperature Range

-55 to +150

o

C

Absolute Maximum Ratings

(Operating temperature range applies, unless otherwise specified)

SOT-23

Dimensions in inches and (millimeters)

Characteristic

Symbol

Min

Typ

Max

Unit

Test Conditions

Reference Input Voltage

2.445

2.495

2.545

V

Reference Input Voltage Deviation

-

4.0

17

mV

Over Temperature Range

Ratio of Change in Reference Input Voltage

-

-1.4

-2.7

mV/V

to Change in Cathode to Anode Voltage

-

-1.0

-2.0

Reference Input Current

-

2.0

4.0

µA

Reference Input Current Deviation

-

0.4

1.2

µA

Over Temperature Range

Minimum Cathode Current for Regulation

-

0.4

1.0

mA

Off-State Cathode Current

-

0.1

1.0

µA

Dynamic Impedance

-

0.2

0.5

Ω

Electrical Characteristics

(Ratings at 25oC ambient temperature unless otherwise specified)

.091(2.3)

.067(1.7)

.063(1.6)

.047(1.2)

.110(2.8)

.083(2.1)

.045(1.2)

.034(0.9)

.118(3.0)

.110(2.8)

.020(0.5)

.012(0.3)

.008(0.2)

.004(0.1)

.004

(0.10)

.051(1.3)

.035(0.9)

.028(0.7)

.012(0.3)

Max

.028(0.7)

.012(0.3)

2

1

3