TL431 / TL431A / TL431B
®
Precision programmable References
TM
PRODUCTION DATA SHEET
CHARACTERISTIC CURVES
2.60
5
VREF= VKA
IK = 10mA
IK = 10mA
R1 =
IK = 10mA
2.58
2.56
VREF= 2550mV
4
3
2
1
0
TL431/A
2.54
2.52
TL431B
TL431/A
2.50
2.48
TL431/A
VREF= 2495mV
VREF= 2440mV
2.46
2.44
TL431B
TL431/A
-25
2.42
2.4
-50
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
(TA ) Ambient Temperature - (°C)
(TA ) Ambient Temperature - (°C)
Figure 1 – Reference Voltage vs. Free-Air Temperature
Figure 2 – Reference Current vs. Free-Air Temperature
150
800
VKA = VREF
VKA = VREF
125
T = 25°C
T = 25 °C
A
A
100
75
600
IMIN
50
400
25
0
200
0
TL431/A
-25
TL431B
-50
-75
-100
-200
-2
-1
0
1
23
-1
0
1
23
(VKA ) Cathode Voltage - (V)
Figure 3 – Cathode Current vs. Cathode Voltage
(VKA) Cathode Voltage - (V)
Figure 4 – Cathode Current vs. Cathode Voltage
Copyright © 1999
Rev. 1.4, 2006-09-26
Microsemi
Page 5
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
MICROSEMI [ Microsemi ]
