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FOD2711
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 8-DIP
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：100% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：30V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.5V (Max)
- Current - DC Forward (If) (Max)：-
- Vce Saturation (Max)：400mV
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The FOD2711 is an optically isolated error amplifier integrating a precision programmable shunt reference and a phototransistor optocoupler. It provides high gain and wide bandwidth for feedback loops in isolated power supplies. The device features a low reference voltage of 1.24 V and supports a collector-emitter saturation voltage as low as 400 mV. It operates within a temperature range of -40°C to +85°C and offers isolation voltages up to 5000 Vrms depending on the package variant.
Feature Summary
- Integrates RC431A precision programmable shunt reference with optocoupler
- Provides high gain and wide bandwidth for control loop stability
- Features low reference voltage for precise output regulation
Applications
- Isolated AC to DC power supplies
- DC/DC converters
- Flyback converter primary-side regulation
Procurement Notes
Verify the specific suffix (e.g., A, SD) to confirm package type and insulation rating. Confirm RoHS compliance status and lead-free designation. Ensure the manufacturer source matches current ownership transitions from Fairchild to onsemi. Check datasheet revisions for updated electrical characteristics before finalizing procurement.
Selection Notes
Select based on required isolation voltage and package style. The standard DIP version suits through-hole designs, while SMD variants are for surface mount applications. Verify that the integrated reference tolerance meets system accuracy requirements. Ensure the operating temperature range aligns with the target environment constraints.
Part Context
This component belongs to the FOD271x series of optically isolated amplifiers. It serves as a complete solution for error amplification and voltage referencing in isolated circuits. The series includes variants like FOD2712 and FOD2741 with different tolerances and pinouts. It replaces discrete resistor divider and op-amp configurations in power supply designs.
Replacement Considerations
FOD2712A is a similar optically isolated error amplifier with potentially different pinout or tolerance specifications. FOD2741A offers tighter tolerance options. Verify pin compatibility and electrical parameters when substituting.
