TL431_FAM_2

© NXP B.V. 2010. All rights reserved.

Product data sheet

Rev. 02 — 20 January 2010

4 of 23

NXP Semiconductors

TL431 family

Adjustable precision shunt regulator

8.

Pinning information

9.

Limiting values

[1]

Device mounted on an FR4 Printed-Circuit Board (PCB), single-sided copper, tin-plated and standard

footprint.

[2]

[3]

Table 5.

Pinning

Pin

Symbol

Description

Simplified outline

Graphic symbol

Normal pinning: All types except TL431AMSDT, TL431BMSDT and TL431MSDT

1

k

cathode

2

REF

reference

3

a

anode

Mirrored pinning: TL431AMSDT, TL431BMSDT and TL431MSDT

1

REF

reference

2

k

cathode

3

a

anode

12

3

006aab355

REF

ak

12

3

006aab355

REF

ak

Table 6.

Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

cathode-anode voltage

-

37

V

cathode current

−100

150

mA

reference current

−0.05

10

mA

total power dissipation

[1] -350

mW

[2] -580

mW

[3] -950

mW

junction temperature

-

150

°C

ambient temperature

TL431XCDBZR

0

+70

°C

TL431XIDBZR

−40

+85

°C

TL431XQDBZR

TL431XSDT

−40

+125

°C

storage temperature

−65

+150

°C