Product Summary

The FOD2712 is an optically isolated error amplifier. It consists of the popular RC431A precision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. The FOD2712 is primarily intended for use as the error amplifier/reference voltage/optocoupler function in isolated ac to dc power supplies and dc/dc converters. The applications of the FOD2712 include: Power system for workstations, Telecom central office supply, Telecom bricks.

Parametrics

FOD2712 absolute maxing ratings: (1)Storage Temperature TSTG: -55 to +125 ℃; (2)Operating Temperature TOPR: -40 to +85 ℃; (3)Input Voltage VLED: 13.2 V; (4)Input DC Current ILED: 20 mA; (5)Collector-Emitter Voltage VCEO: 30 V; (6)Emitter-Collector Voltage VECO: 7 V; (7)Collector Current IC: 50 mA; (8)Input Power Dissipation PD1: 145 mW; (9)Transistor Power Dissipation PD2: 85 mW; (10)Total Power Dissipation PD3 145: mW.

Features

FOD2712 features: (1)Optocoupler, precision reference and error amplifier in single package; (2)1.240V ±1% reference; (3)CTR 100% to 200%; (4)2,500V RMS isolation; (5)VDE approval 136616; (6)BSI approval 8661 and 8662; (7)UL approval E90700; (8)CSA approval 1113643.

Diagrams

FOD2712 diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FOD2712
FOD2712

Fairchild Semiconductor

Isolation Amplifiers Error amplifier Optocoupler

Data Sheet

Negotiable 
FOD2712_Q
FOD2712_Q

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

Negotiable 
FOD2712A
FOD2712A

Fairchild Semiconductor

Transistor Output Optocouplers Isolated Error Amp Optocoupler

Data Sheet

0-1: $0.55
1-25: $0.49
25-100: $0.39
100-250: $0.34
FOD2712AR2
FOD2712AR2

Fairchild Semiconductor

Transistor Output Optocouplers Isolated Error Amp Optocoupler

Data Sheet

0-1: $0.58
1-25: $0.50
25-100: $0.39
100-250: $0.29
FOD2712AR2V
FOD2712AR2V

Fairchild Semiconductor

Transistor Output Optocouplers OPTICALLY ISOLATED ERROR AMPLIFIER

Data Sheet

0-1670: $0.31
1670-2000: $0.29
2000-2500: $0.29
2500-5000: $0.27
FOD2712AV
FOD2712AV

Fairchild Semiconductor

Transistor Output Optocouplers OPTICALLY ISOLATED ERROR AMPLIFIER

Data Sheet

0-2010: $0.31
2010-3000: $0.29
3000-6000: $0.27
6000-12000: $0.26
FOD2712R2
FOD2712R2

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

Negotiable 
FOD2712R2V
FOD2712R2V

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

Negotiable