TL431H

LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD

3 of 6

www.unisonic.com.tw

QW-R103-158.A



PARAMETER

SYMBOL

RATINGS

UNIT

Cathode Voltage

37

V

Cathode Current Range(Continuous)

-100 ~ +150

mA

Reference Input Current Range

-0.05 ~ +10

mA

Power Dissipation

770

mW

Operating Junction

+150

°C

Operating Ambient (Note 2)

-40 ~ +125

°C

Storage Temperature

-65 ~ +150

°C

Notes: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

2. It is guarantee by design, not 100% be tested.



RECOM M EN DED OPERAT I N G CON DI T I ON S

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

Cathode Voltage

36

V

Cathode Current

1

100

mA

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX UNIT

TL431H-A (±0.5%) 2.483 2.495 2.507

V

TL431H-1 (±1%)

2.470 2.495 2.520

V

TL431H-2 (+2%)

2.520

-

2.545

V

Reference Input Voltage

TL431H-3 (-2%)

2.445

-

2.470

V

Deviation of reference Input Voltage Over

temperature

∆T

0°C

≤T

A

≤70°C

4.5

17

mV

V

-1.0

-2.7

mV/V

Ratio of Change in Reference Input

Voltage to the Change in Cathode Voltage

KA

REF

∆V

∆V

V

-0.5

-2.0

mV/V

Reference Input Current

Ω, R2=∞

1.5

4

µA

Deviation of Reference Input Current Over

Full Temperature Range

∆T

Ω, R2=∞,

0.4

1.2

µA

Minimum Cathode Current for Regulation

0.3

0.5

mA

Off-State Cathode Current

0.05

1.0

µA

Dynamic Impedance

≤1.0kHz

0.15

0.5

Ω