TL431

Electrical Characteristics

7/13

Figure 9.

Reference voltage vs. temp.

Figure 10. Reference voltage vs. cathode current

Figure 11. Reference voltage vs. cathode current Figure 12. Reference current vs. temp.

Figure 13. Off-state cathode current vs. temp.

-40

-20

0

20

40

60

80

100

2.44

2.46

2.48

2.50

2.52

2.54

V

KA

= V

REF

I

K

= 10 mA

Temperature (

-1

0

123

-50

-25

0

25

50

75

100

T

AMB

=+25

°C

Cathode voltage V

KA

(V)

-1

0

123

-2

-1

0

1

2

T

AMB

= +25

°C

Cathode voltage V

KA

(V)

−40

−20

0

20

40

60

80

100

0.0

0.5

1.0

1.5

2.0

I

K

=10 mA

R

1

=10k

Ω

R2= +

∝

Temperature °C

-40

-20

0

20

40

60

80

100

0.0

0.5

1.0

1.5

2.0

V

KA

= 36 V

V

REF

= 0 V

Temperature (

-40

-20

0

20

40

60

80

100

-2.0

-1.5

-1.0

-0.5

0.0

I

K

= 10 mA

Temperature (