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FOD2741AT
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Product Detailed Parameters
- Description：OPTOISOLTR 5KV 1CH TRANS 8-MDIP
- Series：-
- Mfr：onsemi
- 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 (0.400", 10.16mm)
- Supplier Device Package：8-MDIP
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Overview
The FOD2741AT is a surface-mount optically isolated error amplifier manufactured by onsemi. It integrates a precision programmable shunt reference with an NPN phototransistor output in an 8-SMD package. Key electrical parameters include a 5000 Vrms isolation voltage, a forward voltage of 1.5 V, and a current transfer ratio ranging from 100% to 200% at 10 mA input. The device supports a maximum collector current of 50 mA and operates within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a precision programmable shunt reference with an NPN phototransistor for high-accuracy feedback control.
- Provides robust galvanic isolation between input and output circuits via optical transmission.
- Designed specifically for use as an error amplifier or reference voltage source in isolated power conversion topologies.
Applications
- Error amplifier function in isolated AC-to-DC power supplies
- Reference voltage generation in DC-to-DC converters
- Feedback loop compensation in switch-mode power supply designs
Procurement Notes
Verify the specific suffix 'T' against official documentation to confirm tape-and-reel packaging status, as datasheets may list standard reel configurations. Confirm RoHS compliance and REACH status through manufacturer declarations. Ensure the component meets the required operating temperature range for the target application environment before finalizing procurement.
Selection Notes
Select this component when a combined error amplifier and optocoupler solution is required to reduce board space and component count. It is suitable for applications needing precise voltage referencing with high isolation requirements. Consider the 8-SMD package constraints and thermal dissipation limits when designing the PCB layout for optimal performance.
Part Context
The FOD2741 series belongs to onsemi's family of optically isolated amplifiers. This specific part combines the functionality of a shunt reference regulator with an optocoupler, simplifying circuit design for isolated power supplies. It serves as a direct replacement for discrete reference and optocoupler combinations in legacy designs requiring high isolation ratings.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative manufacturers, ensuring equivalent isolation voltage and current transfer ratio specifications are met.
