TL431

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

3 of 6

www.unisonic.com.tw

QW-R103-003.AP



PARAMETER

SYMBOL

RATINGS

UNIT

Cathode Voltage

37

V

Cathode Current Range(Continuous)

-100 ~ +150

mA

Reference Input Current Range

-0.05 ~ +10

mA

TO-92

770

mW

SOT-89

800

mW

SOT-23/SOT-23-3

TSOT-23/SOT-25

300

mW

SIP-3

400

mW

Power Dissipation

SOP-8

600

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.



RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNIT

Cathode Voltage

36

V

Cathode Current

1

100

mA



PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

TL431-A (±0.5%)

2.483 2.495 2.507

V

TL431-1 (±1%)

2.470 2.495 2.520

V

TL431-2 (+2%)

2.520

-

2.545

V

Reference Input Voltage

TL431-3 (-2%)

2.445

-

2.470

V

Deviation of reference Input Voltage Over

temperature

∆T

4.5

17

mV

-1.0

-2.7 mV/V

Ratio of Change in Reference Input

Voltage to the Change in Cathode Voltage

KA

REF

∆V

∆V

-0.5

-2.0 mV/V

Reference Input Current

1.5

4

µA

Deviation of Reference Input Current Over

Full Temperature Range

∆T

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

0.15

0.5

Ω