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TL431-Q1 Datasheet, PDF (7/26 Pages) Texas Instruments – ADJUSTABLE PRECISION SHUNT REGULATOR | |||
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TL431âQ1
ADJUSTABLE PRECISION SHUNT REGULATOR
SGLS302D â MARCH 2005 â REVISED MARCH 2013
TYPICAL CHARACTERISTICS{
2600
2580
2560
REFERENCE VOLTAGE
vs
FREE-AIR TEMPERATURE
VKA = Vref
IKA = 10 mA
Vref = 2550 mVâ¡
2540
2520
2500
Vref = 2495 mVâ¡
2480
2460
2440
Vref = 2440 mVâ¡
2420
2400
â75 â50 â25 0 25 50 75 100 125
TA â Free-Air Temperature â °C
â¡ Data is for devices having the indicated value of Vref at IKA = 10 mA,
TA = 25°C.
Figure 5
REFERENCE CURRENT
vs
FREE-AIR TEMPERATURE
5
R1 = 10 kΩ
R2 = â
IKA = 10 mA
4
3
2
1
0
â75 â50 â25 0 25 50 75 100 125
TA â Free-Air Temperature â °C
Figure 6
CATHODE CURRENT
vs
CATHODE VOLTAGE
150
VKA = Vref
125 TA = 25°C
100
CATHODE CURRENT
vs
CATHODE VOLTAGE
800
VKA = Vref
TA = 25°C
600
75
Imin
50
400
25
0
200
â25
â50
0
â75
â100
â200
â2
â1
0
1
2
3
â1
0
1
2
3
VKA â Cathode Voltage â V
VKA â Cathode Voltage â V
Figure 7
Figure 8
â Data at high and low temperatures is applicable only within the recommended operating free-air temperature ranges of the various devices.
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