TL431 SOT-23 Three-terminal Adjustable Regulators

Characteristic

Symbol

Rating

Unit

Cathode to Anode Voltage

VKA

37

V

Cathode Current Range(Continuous)

IKA

-100 ~ +150

mA

Reference Input Current Range

Iref

0.05 ~ 10

mA

Power Dissipation

PD

300

mW

Operating Temperature

Topr

0 ~ 70

Storage Temperature

Tstg

-55 ~ +150

GM431=431

Characteristic  

Symbol

Test Condition

Min

Typ

Max

Unit

Reference Input Voltage

VREF

0.5%

1%

2%

VKA=VREF,

IKA=10mA

2.483

2.470

2.445

2.495

2.495

2.495

2.507

2.520

2.545

V

Deviation of reference Input Voltage Over temperature

ΔVREF/ΔT

VKA=VREF,

IKA=10mA

0 ~ 70

—

4.5

17

mV

Ratio of Change in Reference Input Voltage to the Change in Cathode Voltage

ΔVREF/ΔVKA

IKA=10mA

ΔVKA=10V~VREF

ΔVKA=36V~10V

—

-1.0

-0.5

-2.7

-2.0

mV/V

Reference Input Current

IREF

IKA=10mA

R1=10kΩ,R2=∞

—

1.5

4

uA

Deviation of Reference Input Current Over Full Temperature Range

ΔIREF/ΔT

IKA=10mA

R1=10kΩ,R2=∞

TA=Full Temperature

—

0.4

1.2

uA

Minimum Cathode Current for Regulation

IKA(MIN)

VKA=VREF

—

0.45

1.0

mA

Off-state Cathode Current

IKA(OFF)

VKA=36V

VREF=0V

—

0.05

1.0

uA

Dynamic Impedance

ZKA

VKA=VREF

IKA=1 to 100mA

f≤1kHz

—

0.15

0.5

Ω