TL431/TL431A/TL431B

PRODUCT DA T ABOOK 1996/1997

Copyright © 1999

Rev. 1.3

9/99

2

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Cathode to Anode Voltage (V

Reference Input Current (I

Continuous Cathode Current (I

Operating Junction Temperature

Plastic (DM, LP Packages) .................................................................................... 150°C

Storage Temperature Range ...................................................................... -65°C to 150°C

Lead Temperature ..................................................................................................... 300°C

PACKAGE PIN OUTS

CATHODE

N.C.

ANODE

N.C.

1

8

2

7

3

6

4

5

REF

ANODE

ANODE

N.C.

DM PACKAGE

(Top View)

LP PACKAGE

(Top View)

1. CATHODE

2. ANODE

3. REF

Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect

to Ground. Currents are positive into, negative out of the specified terminal. Pin

numbers refer to DIL packages only.

Note 2. Voltage values are with respect to the anode terminal unless otherwise noted.

BLOCK DIAGRAM

Cathode (K)

Anode (A)

V

REF

Ref (R)

DM PACKAGE:

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

165°C/W

LP PACKAGE:

THERMAL RESISTANCE-JUNCTION TO AMBIENT,

θθθθθ

JA

156°C/W

Junction Temperature Calculation:

T

The

θ

All of the above assume no ambient airflow

THERMAL DATA