TL431BLP Datasheet, PDF (2/4 Pages) Micro Commercial Components – Programmable Precision Regulator

TL431BLP
Input
I_K
V_KA
V_ref
Figure 1. Test Circuit for V_KA = V_ref
MCC
TM
Micro Commercial Components
Input
V_KA
I_K
R1 I_ref
Input
V_KA
I_off
R2
ǒ Ǔ V_KA + V_refĂ Ă1 ) ^RR12Ă ) I_refĂSĂR1
V_ref
Figure 2. Test Circuit for V_KA > V_ref
Figure 3. Test Circuit for I_off
150
V_KA = V_ref
100
T_A = 25°C
Input
V_KA
I_K
50
0
-50
-10-02.0
-1.0
0
1.0
2.0
3.0
V_KA, CATHODE VOLTAGE (V)
Figure 4. Cathode Current versus
Cathode Voltage
800
V_KA = V_ref
T_A = 25°C
600 Input
I_K^VKA
I_Min
400
200
0
-20-01.0
0
1.0
2.0
3.0
V_KA, CATHODE VOLTAGE (V)
Figure 5. Cathode Current versus
Cathode Voltage
2600
2580 ^Input
2560 V_ref
2540
V_KA
I_{K VKA = Vref}
I_K = 10 mA
Vref Max = 2525mV
2520
2500
Vref Typ = 2500mV
2480
2460
2440
Vref Min = 2475mV
2420
2400
-55
-25
0
25
50
75 100 125
T_A, AMBIENT TEMPERATURE (°C)
Figure 6. Reference Input Voltage versus
Ambient Temperature
3.0
2.5
2.0
1.5
I_K = 10 mA
1.0 Input
V_KA
10k ^Iref
I_K
0.5
0-55
-25
0
25
50
75 100 125
T_A, AMBIENT TEMPERATURE (°C)
Figure 7. Reference Input Current versus
Ambient Temperature
Revision: A
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2 of 4
2011/01/01