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FOD2742AR2_Q

Description
Transistor Output Optocouplers Error amplifier Optocoupler
CategoryLED optoelectronic/LED   
File Size309KB,17 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
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FOD2742AR2_Q Overview

Transistor Output Optocouplers Error amplifier Optocoupler

FOD2742AR2_Q Parametric

Parameter NameAttribute value
Product CategoryTransistor Output Optocouplers
ManufacturerFairchild
RoHSNo
Package / CaseSOIC-8
Output TypePhototransistor
Number of Channels1 Channel
If - Forward Current20 mA
Maximum Collector Emitter Voltage70 V
Maximum Collector Current50 mA
Isolation Voltage2500 Vrms
Maximum Collector Emitter Saturation Voltage0.4 V
Vf - Forward Voltage1.5 V
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature- 25 C
PackagingReel
PackagingCut Tape
Collector-Emitter Breakdown Voltage70 V
Current Transfer Ratio100 % to 200%
Height3.63 mm
Length5.13 mm
Mounting StyleSMD/SMT
Reference Voltage2.495 V
Factory Pack Quantity2500
Width4.16 mm
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_Q Related Products

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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 - compliant unknown 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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