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FOD2742AR2

Description
Transistor Output Optocouplers Error amplifier Optocoupler
CategoryLED optoelectronic/LED    photoelectric   
File Size309KB,17 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Environmental Compliance
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FOD2742AR2 Overview

Transistor Output Optocouplers Error amplifier Optocoupler

FOD2742AR2 Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerFairchild
package instructionSO-8
Reach Compliance Codeunknown
Other featuresUL RECOGNIZED
Coll-Emtr Bkdn Voltage-Min70 V
ConfigurationSINGLE
Current transmission ratio - minimum value100%
Nominal current transfer ratio140%
Maximum dark power50 nA
Maximum forward current0.02 A
Maximum forward voltage1.5 V
Maximum insulation voltage2500 V
JESD-609 codee3
Installation featuresSURFACE MOUNT
Number of components1
Maximum on-state current0.05 A
Maximum operating temperature85 °C
Minimum operating temperature-25 °C
Optoelectronic device typesTRANSISTOR OUTPUT OPTOCOUPLER
Maximum power dissipation0.085 W
surface mountYES
Terminal surfaceMatte Tin (Sn)
FOD2742A, FOD2742B, FOD2742C — Optically Isolated Error Amplifier
April 2009
FOD2742A, FOD2742B, FOD2742C
Optically Isolated Error Amplifier
Features
Optocoupler, precision reference and error amplifier in
Description
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.
single package
2.5V reference
CTR 100% to 200%
2,500V RMS isolation
UL approval E90700, Volume 2
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
Power supplies regulation
DC to DC converters
Schematic
Package Outline
NC 1
8 LED
C 2
7 FB
E 3
6 COMP
NC 4
5 GND
©2003 Fairchild Semiconductor Corporation
FOD2742A, FOD2742B, FOD2742C Rev. 1.0.1
www.fairchildsemi.com

FOD2742AR2 Related Products

FOD2742AR2 FOD2742AR2V FOD2742CR2 FOD2742AR2_Q FOD2742CR2V FOD2742BV_Q FOD2742AR1 FOD2742BR1V FOD2742AV FOD2742C_Q
Description Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler Transistor Output Optocouplers Error amplifier Optocoupler
Is it Rohs certified? conform to conform to conform to - conform to - conform to conform to conform to -
Maker Fairchild Fairchild Fairchild - Fairchild - Fairchild Fairchild Fairchild -
package instruction SO-8 SO-8 SO-8 - SO-8 - SO-8 LEAD FREE, SOIC-8 SO-8 -
Reach Compliance Code unknown compliant unknown - unknown - unknown unknown compliant -
Other features UL RECOGNIZED UL RECOGNIZED UL RECOGNIZED - UL RECOGNIZED - UL RECOGNIZED UL RECOGNIZED UL RECOGNIZED, VDE APPROVED -
Coll-Emtr Bkdn Voltage-Min 70 V 70 V 70 V - 70 V - 70 V 70 V 70 V -
Configuration SINGLE SINGLE SINGLE - SINGLE - SINGLE SINGLE SINGLE -
Current transmission ratio - minimum value 100% 100% 100% - 100% - 100% 100% - -
Nominal current transfer ratio 140% 140% 140% - 140% - 140% 140% 140% -
Maximum dark power 50 nA 50 nA 50 nA - 50 nA - 50 nA 50 nA 50 nA -
Maximum forward current 0.02 A 0.02 A 0.02 A - 0.02 A - 0.02 A 0.02 A 0.02 A -
Maximum forward voltage 1.5 V 1.5 V 1.5 V - 1.5 V - 1.5 V 1.5 V - -
Maximum insulation voltage 2500 V 2500 V 2500 V - 2500 V - 2500 V 2500 V 2500 V -
JESD-609 code e3 e3 e3 - e3 - e3 e3 e3 -
Installation features SURFACE MOUNT SURFACE MOUNT SURFACE MOUNT - SURFACE MOUNT - SURFACE MOUNT SURFACE MOUNT - -
Number of components 1 1 1 - 1 - 1 1 1 -
Maximum on-state current 0.05 A 0.05 A 0.05 A - 0.05 A - 0.05 A 0.05 A - -
Maximum operating temperature 85 °C 85 °C 85 °C - 85 °C - 85 °C 85 °C 85 °C -
Minimum operating temperature -25 °C -25 °C -25 °C - -25 °C - -25 °C -25 °C -25 °C -
Optoelectronic device types TRANSISTOR OUTPUT OPTOCOUPLER TRANSISTOR OUTPUT OPTOCOUPLER TRANSISTOR OUTPUT OPTOCOUPLER - TRANSISTOR OUTPUT OPTOCOUPLER - TRANSISTOR OUTPUT OPTOCOUPLER TRANSISTOR OUTPUT OPTOCOUPLER TRANSISTOR OUTPUT OPTOCOUPLER -
Maximum power dissipation 0.085 W 0.085 W 0.085 W - 0.085 W - 0.085 W 0.085 W - -
surface mount YES YES YES - YES - YES YES - -
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) - Matte Tin (Sn) - Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) -
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