TL431/TL431A/TL431B

PRODUCT DA T ABOOK 1996/1997

3

Copyright © 1999

Rev. 1.3

9/99

(Unless otherwise specified, these specifications apply over the operating ambient temperatures for TL431C/TL431AC/TL431BC with 0°C

≤ T

TL431I/TL431AI/TL431BI with -40°C

≤ T

Parameter

Symbol

Test Conditions

TL431/431A/431B

Units

Min. Typ. Max.

2440 2495 2550

mV

2470 2495 2520

mV

2490 2500 2510

mV

417

mV

530

mV

417

mV

530

mV

415

mV

520

mV

-1.4

-2.7

mV/V

-1.1

-2

mV/V

24

µA

1.5

1.9

µA

2.3

µA

0.4

1

mA

0.1

1

µA

0.1

1

µA

2µA

0.18

0.5

µA

0.2

0.5

Ω

0.1

0.2

Ω

Note 3. These parameters are guaranteed by design.

Note 4.

Ratio of change in reference input voltage

to the change in cathode voltage.

∆V

REF

∆V

KA

Reference Input Voltage

TL431

V

REF

I

TL431A

I

TL431B

I

Reference Drift

TL431C

I

TL431I

I

TL431AC

∆V

REF

I

TL431AI

∆V

KA

I

TL431BC

I

TL431BI

I

Voltage Ratio, Ref to Cathode

TL431, TL431A

I

(Note 4)

TL431B

I

Reference Input Current

TL431,TL431A

I

REF

V

TL431B

V

V

Minimum Operating Current

I

MIN

V

Off-State Cathode Current

TL431

I

OFF

V

TL431A

V

TL431B

V

V

Dynamic Impedance

TL431

| Z

TL431B

V