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FOD2741CV
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 8-DIP
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Tube
- 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 FOD2741CV is a single-channel optically isolated error amplifier manufactured by Fairchild Semiconductor. It integrates an infrared LED with an NPN phototransistor output in an 8-pin DIP package. The device provides high isolation voltage and is designed for precision analog signal transmission across isolation barriers. Key electrical parameters include a maximum collector-emitter voltage of 30 V, a typical current transfer ratio of 100%, and a reference voltage of 2.495 V. It operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates an infrared emitting diode with an NPN phototransistor for single-channel optical coupling.
- Designed specifically as an error amplifier for precision analog applications requiring galvanic isolation.
- Provides high-voltage isolation between input and output circuits.
Applications
- Precision analog signal isolation in industrial control systems
- Error amplifier stages in switching power supplies
- Isolated feedback loops in motor drives
Procurement Notes
Verify the manufacturer marking on the component body, which should read '2741C' for the FOD2741CV variant. Confirm the package type is 8-pin DIP-W. Ensure compliance with RoHS directives if required by your specific application standards. Cross-reference datasheets from both Fairchild Semiconductor and onsemi, as the product line was transferred, to ensure parameter consistency.
Selection Notes
Select this component when a dedicated error amplifier function is required within an isolated environment. The fixed reference voltage simplifies circuit design compared to standard optocouplers. Consider the thermal dissipation limits and operating temperature range relative to the host system's environmental conditions. Verify that the 30 V collector-emitter voltage rating meets the isolation barrier requirements.
Part Context
The FOD2741 series belongs to the family of optically isolated amplifiers produced by Fairchild Semiconductor and later onsemi. These devices combine the functionality of an optocoupler with internal biasing and reference structures to facilitate accurate error signal transmission. The CV suffix typically denotes the through-hole DIP-8 packaging configuration used in legacy and robust industrial designs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official cross-reference guides or contact the manufacturer directly for qualified alternatives.
