FAN431ZXA Datasheet PDF - Fairchild Semiconductor
| Part Number | FAN431ZXA | |
| Description | Programmable Shunt Regulator | |
| Manufacturers | Fairchild Semiconductor | |
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FAN431/FAN431A/FAN431L
Programmable Shunt Regulator
www.fairchildsemi.com
Features
• Programmable Output Voltage to 36 Volts
• Low Dynamic Output Impedance 0.20 Typical
• Sink Current Capability of 1.0 to 100mA
• Equivalent Full-Range Temperature Coefficient of
50ppm/°C Typical
• Temperature Compensated for Operation Over Full Rated
Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn-on Response
Description
The FAN431/FAN431A/FAN431L are three terminal
output adjustable regulators with thermal stability over
operating temperature range. The output voltage can be set
any value between VREF (approximately 2.5 volts) and 36
volts with two external resistors. These devices have a
typical dynamic output impedance of 0.2Ω Active output
circuit provides a sharp turn-on characteristic, making these
devices excellent replacement for Zener Diodes in many
applications.
TO-92
1
1. Ref 2. Anode 3. Cathode
Internal Block Diagram
REFERENCE
2.5 Vref
REFERENCE (R)
ANODE
CATHODE (K)
ANODE(A)
©2003 Fairchild Semiconductor Corporation
CATHODE
Rev. 1.0.1
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Typical Performance Characteristics
FAN431/FAN431A/FAN431L
150
100
V =V
KA REF
TA = 25oC
50
0
-50
-100
-2
-1
01
VKA, Cathode Voltage (V)
2
3
Figure 4. Cathode Current vs. Cathode Voltage
800
600
VKA = VREF
TA = 25oC
400
IKA(MIN)
200
0
-200
-1
012
VKA, CATHODE VOLTAGE (V)
3
Figure 5. Cathode Current vs. Cathode Voltage
0.100
0.075
0.050
0.025
0.000
-50 -25 0 25 50 75 100 125
TA, Ambient Temperature (oC)
Figure 6. OFF-State Cathode Current vs.
Ambient Temperature
60
50
40
30
20
10
0
-10
1k
TA = 25oC
IKA = 10mA
10k 100k 1M
Frequency (Hz)
10M
Figure 8. Small Signal Voltage Amplification vs. Frequency
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-50
-25
0
25 50 75 100 125
TA, Ambient Temperature (oC)
Figure7. Reference Input Current vs.
Ambient Temperature
6
T =25oC
A
5
4
INPUT
3
OUTPUT
2
1
0
0 4 8 12 16 20
Time (us)
Figure 9. Pulse Response
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FAN431ZXA electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ FAN431ZXA.PDF Datasheet ] | |
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