FOD2742B: 8-PIN SOIC Error Amplifier Optocoupler

Datasheet: FOD2742B-D.pdf
Rev. A (431kB)
Product Overview
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Product Change Notification
The FOD2742 Optically Isolated Amplifier consists of the popular KA431 precision 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 100% to 200%. 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 FOD2742, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance reference eliminates the need for adjustments in many applications. The device comes in a 8-pin small outline package.
Features
 
  • Optocoupler, precision reference and error amplifier in single package
  • 2.5V reference
  • CTR 100% to 200%
  • 2,500V RMS isolation
  • UL approval E90700
  • BSI approval 8661, 8662
  • VDE approval 136616
  • CSA approval 1113643
  • Low temperature coefficient 50 ppm/°C max
  • FOD2742A: tolerance 0.5%; FOD2742B: tolerance 1%; FOD2742C: tolerance 2%
Applications
  • AC-DC Merchant Power Supply
  • Consumer Appliances
  • Industrial Motor
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
FOD2742B Active
Pb-free
FOD2742B SOIC-8 751DZ 1 260 Tube 3000 $0.3013
FOD2742BR2 Active
Pb-free
FOD2742B SOIC-8 751DZ 1 260 Tape and Reel 2500 $0.3564
FOD2742BR2V Active
Pb-free
FOD2742B SOIC-8 751DZ 1 260 Tape and Reel 2500 $0.4686
FOD2742BV Active
Pb-free
FOD2742B SOIC-8 751DZ 1 260 Tube 3000 $0.3289
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : 17 to 20
ON Semiconductor   (2020-09-02 00:00) : 10,000
Market Leadtime (weeks) : 17 to 20

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
FOD2742B  
 $0.3013 
Pb
 Active   
1
2.47
2.495
2.52
100
200
10
0.4
70
2500
-25
85
SOIC-8
FOD2742BR2  
 $0.3564 
Pb
 Active   
1
2.47
2.495
2.52
100
200
10
0.4
70
2500
-25
85
SOIC-8
FOD2742BR2V  
 $0.4686 
Pb
 Active   
1
2.47
2.495
2.52
100
200
10
0.4
70
2500
-25
85
SOIC-8
FOD2742BV  
 $0.3289 
Pb
 Active   
1
2.47
2.495
2.52
100
200
10
0.4
70
2500
-25
85
SOIC-8
Case Outlines
751DZ   
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