TL431AC 查看數據表（PDF） - STMicroelectronics

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TL431AC

PROGRAMMABLE VOLTAGE REFERENCE

STMicroelectronics 

TL431

Reference voltage vs Temperature

2,58

Average

2,56

2% range

2,54

1% range

2,52

2,5

2,48

Vka=Vref

Ik=10mA

2,46

2,44

2,42

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

Temperature(°C)

Test circuit for Vka=Vref

Input

Vref

Ik=10mA

Output

Vka

Cathode current vs Cathode voltage

100

90

80

Vka=Vref

70

Ta=25°C

60

50

40

30

20

10

0

-10

-20

-30

-40

-50

-2

-1

0

1

2

3

Vka Cathode voltage(V)

Cathode current vs Cathode voltage

2

1,5

Vka=Vref

Ta=25°C

1

0,5

0

-0,5

-1

-1,5

-2

-1

0

1

2

3

Vka Cathode voltage(V)

Reference input current vs temperature

1,2

Ika=10mA

1,1

R1=10K

R2=inf

1

0,9

0,8

0,7

0,6

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100

Temperature(°C)

Rka - Static impedance vs Temperature

Rka (Ohms)

0,24

0,235

Vka=Vref

Ika =1 to 100mA

0,23

0,225

0,22

0,215

-40 -30 -20 -10 0

10 20 30 40 50 60 70 80 90 100

Temperature (°C)

4/9

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