TL431
PROGRAMMABLE PRECISION REFERENCES
TYPICAL PERFORMANCE CHARACTERISTICS
REFERENCE VOLTAGE vs
FREE-AIR TEMPERATURE†
2600
2580
2560
2540
V
REF
-REFERENCE VOLTAGE-
2520
V
REF
=25㎷‡
2500
2480
2460
V
REF
=2440㎷‡
2440
2420
2400
-75
-50
-25
0
25
50
75
100
125
0
-75
-50
-25
0
25
50
75
100
125
V
REF
=2500㎷‡
4
V
REF
-REFERENCE VOLTAGE-
5
R1=10㏀
R2=∞
I
KA
=10㎃
REFERENCE CURRENT vs
FREE-AIR TEMPERATURE †
3
2
1
T
A
-FREE-AIR TEMPERATURE-℃
T
A
-FREE-AIR TEMPERATURE-℃
† Data is applicable only within the recommended operating free-air
temperature ranges of the various devices.
‡ Data is for devices having the indicated value of
REF
at I
KA
=10㎷,
V
T
A
=25℃
† Data is applicable only within the recommended operating free-air
temperature ranges of the various devices.
Figure 4.
CATHODE CURRENT vs
CATHODE VOLTAGE
150
125
100
I
KA
-CATHODE CURRENT-
75
50
25
0
-25
-50
-75
-100
-2
-1
0
1
2
3
-200
-1
0
0
I
KA
-CATHODE CURRENT-
V
KA
=V
REF
T
A
=25℃
600
800
V
KA
=V
ERF
T
A
=25℃
Figure 5.
CATHODE CURRENT vs
CATHODE VOLTAGE
I
MIN
400
200
1
2
3
V
KA
-CATHODE VOLTAGE-V
V
KA
-CATHODE VOLTAGE-V
Figure 6.
Figure 7.
５
JinYu
semiconductor
www.htsemi.com
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