FOD2743B: 8-PIN DIP Error Amplifier Optocoupler
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The FOD2743 Optically Isolated Amplifier consists of the popular KA431 percision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. It comes in 3 grades of reference voltage tolerance = 2%, 1% and 0.5%.The Current Transfer Ratio, (CTR) ranges from 50% to 100%. It also has an outstanding temperature coefficient of 50 ppm/°C. It is primarily intended for use as the error amplifier/reference voltage/optocoupler function in isolated ac to dc power supplies and dc/dc converters.When using the FOD2743, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance eliminates the need for adjustments in many applications. The device comes in an 8-pin dip white package.
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Technical Documentation & Design Resources
| Application Notes (1) | Package Drawings (3) |
| Data Sheets (1) | Conformance Reports (3) |
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Availability & Samples
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Specifications
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Case Outline |
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| FOD2743B | Active |
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FOD2743B | PDIP-8 | 646CQ | NA | Tube | 1000 | $0.6587
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| FOD2743BS | Active |
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FOD2743B | PDIP-8 GW | 709AC | 1 | 260 | Bulk Bag | 1000 | $0.6587
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| FOD2743BSD | Active |
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FOD2743B | PDIP-8 GW | 709AC | 1 | 260 | Bulk Bag | 1000 | $0.7333
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| FOD2743BSDV | Active |
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FOD2743B | PDIP-8 GW | 709AC | 1 | 260 | Bulk Bag | 1000 | $0.6986 | ||||||||
| FOD2743BSV | Active |
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FOD2743B | PDIP-8 GW | 709AC | 1 | 260 | Bulk Bag | 1000 | $0.672
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| FOD2743BTV | Active |
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FOD2743B | PDIP-8 | 646BW | NA | Bulk Bag | 1000 | $0.6801 | |||||||||
| FOD2743BV | Active |
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FOD2743B | PDIP-8 | 646CQ | NA | Tube | 1000 | $0.672
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| Market Leadtime (weeks) | : | 4 to 8 |
| Market Leadtime (weeks) | : | 4 to 8 |
| Market Leadtime (weeks) | : | 4 to 8 |
| Market Leadtime (weeks) | : | 4 to 8 |
| ON Semiconductor (2020-09-02 00:00) | : | 19,000 |
| Market Leadtime (weeks) | : | 4 to 8 |
| Market Leadtime (weeks) | : | 4 to 8 |
| Market Leadtime (weeks) | : | 4 to 8 |
Product
Description
Pricing ($/Unit)
Compliance
Status
VREF Tolerance (%)
VREF (Min) (V)
VREF (Typ) (V)
VREF (Max) (V)
CTR (Min) (%)
CTR (Max) (%)
CTR tested @ IF (mA)
VCE (sat) (Max) (V)
BVCEO (Min) (V)
VISO (Min) (V)
TOPR (Min) (°C)
TOPR (Max) (°C)
Package Type
FOD2743BSDV
$0.6986
Pb
A
H
P
Active
1
2.47
2.495
2.52
50
100
1
0.4
70
5000
-25
85
PDIP-8 GW
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