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TL431CD Datasheet(PDF) 5 Page - Motorola, Inc

Part # TL431CD
Description  PROGRAMMABLE PRECISION REFERENCES
PDF  16 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

TL431CD Datasheet(HTML) 5 Page - Motorola, Inc

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TL431, A, B Series
5
MOTOROLA ANALOG IC DEVICE DATA
IK
Vref
VKA
Input
Figure 1. Test Circuit for VKA = Vref
Input
IK
R2
Iref
Vref
VKA
R1
Figure 2. Test Circuit for VKA > Vref
V
KA +
V
ref
1
) R1
R2
) I
ref S
R1
Ioff
Input
VKA
Figure 3. Test Circuit for Ioff
–1.0
IMin
200
400
VKA, CATHODE VOLTAGE (V)
–200
0
0
1.0
2.0
3.0
800
600
–2.0
–1.0
0
–100
1.0
2.0
3.0
150
50
VKA, CATHODE VOLTAGE (V)
0
–50
Figure 4. Cathode Current versus
Cathode Voltage
Figure 5. Cathode Current versus
Cathode Voltage
Input
100
VKA = Vref
TA = 25°C
IK
VKA
125
TA, AMBIENT TEMPERATURE (°C)
3.0
100
50
75
–55
0
2.5
0.5
2.0
1.0
25
0
–25
1.5
2600
2580
2560
2540
2520
2500
2480
2460
VKA = Vref
IK = 10 mA
TA, AMBIENT TEMPERATURE (°C)
VKA
IK
–55
Input
Vref
75
100
125
2440
050
Figure 6. Reference Input Voltage versus
Ambient Temperature
Figure 7. Reference Input Current versus
Ambient Temperature
2420
2400
25
–25
Input
IK
IK = 10 mA
Iref
10k
VKA
Vref Max = 2550 mV
Vref Typ = 2495 mV
Vref Min = 2440 mV
VKA = Vref
TA = 25°C
Input
VKA
IK



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