Cathode Voltage

-100~+150

150, -65~+150

Cathode Current Range (Continuous)

Storage Temperature Range

Tj ,Tstg

C

o

Operating Junction And

Parameter

Symbol

Ratings

Unit

V

mA

37

Total Power Dissipation

625

mW

o

Reference Input Current Range

-0.05~+10

mA

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Any changing of specification will not be informed individual

01-Jun-2002 Rev. A

Page 1 of 3

Description

The TL431 series are three-terminal adjustable regulators

with guaranteed thermal stability over applicable temperature

ranges. The output voltage may be set to any value between

It provides very wide applications, including shunt regulator,

series regulator, switching regulator, voltage reference and others.

Elektronische Bauelemente

TL431

3-Terminal

Adjustable Shunt

Regulator

Characteristics at Ta = 25 ::::

Parameter

Symbol

Min

Typ.

Max.

Unit

Test Conditions

Cathode Voltage

-

36

V

Cathode Current

1

-

100

mA

Reference Input Voltage

TL431C

2.445

TL431B

2.470

TL431A

2.483

2.495

2.545

2.495

2.520

2.495

2.507

V

Deviation of reference Input Voltage

Over temperature(note)

-

4.5

17

mV

Tmin Ta Tmax

Ratio of Change in Reference Input

-

-1.0

-2.7

Voltage to the Change in Cathode Voltage

-

-0.5

-2.0

Reference Input Current

-

1.5

4

uA

Deviation of reference Input Current

Over Full Temperature Range

-

0.4

1.2

uA

Minimum Cathode Current for Regulation

-

0.45

1.0

mA

Off-State Cathode Current

-

0.05

1.0

uA

Dynamic Impedance

-

0.15

0.5

Note: Tmin= 0 ,Tmax=+70

e1

b

e

SEATING

PLANE

b1

D

C

S1

E

REF.

Min.

Max.

REF.

Min.

Max.

A

4.45

4.7

D

4.44

4.7

1.02

-

E

3.30

3.81

b

0.36

0.51

L

12.70

-

0.36

0.76

e1

1.150

1.390

C

0.36

0.51

e

2.42

2.66

Millimeter

Millimeter

TO-92