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FOD2741BSV
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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
- Series：-
- Mfr：onsemi
- Package：Bulk,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：Surface Mount
- Package / Case：8-SMD, Gull Wing
- Supplier Device Package：8-SMD
- Grade：-
- Qualification：-
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Overview
The FOD2741BSV is a high-speed optically isolated amplifier manufactured by onsemi, designed for precision signal transmission across isolation barriers. It integrates an infrared LED with an NPN phototransistor output and an internal error amplifier circuit. Key electrical parameters include a 5000 Vrms insulation voltage, a 100% minimum current transfer ratio at 10 mA input, and a reference voltage of 2.495 V. The device operates within a temperature range of -40°C to +85°C and is housed in an 8-SMD surface-mount package.
Feature Summary
- Integrates an error amplifier with the phototransistor for linear signal isolation
- Provides high-voltage galvanic isolation between input and output circuits
- Features a standardized reference voltage for precise error detection applications
Applications
- Error amplifier circuits in switching power supplies
- Isolated feedback loops in motor drives
- Precision analog signal transmission across isolation boundaries
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific packaging variants (bulk vs. reel) prior to ordering. Check for lifecycle notices such as NRND status which may impact long-term availability. Ensure design-in compatibility with existing PCB footprints and thermal management requirements.
Selection Notes
Select this component when linear isolation with integrated error amplification is required. Compare against standard optocouplers if gain linearity is critical. Consider the 8-SMD package constraints for board space. Evaluate the 5000 Vrms isolation rating against system safety standards. Verify that the 100% CTR specification meets the drive requirements of the downstream circuitry.
Part Context
This part belongs to the FOD2741B series of optically isolated amplifiers from onsemi. It is distinct from basic transistor-output optocouplers due to its built-in error amplifier functionality. The series is designed for applications requiring accurate analog signal transfer while maintaining high isolation voltages. It serves as a specialized solution for feedback control systems where noise immunity and isolation are paramount.
Replacement Considerations
Check for pin-compatible alternatives within the same family, such as FOD2741ASDV, noting differences in packaging or lifecycle status. Verify functional equivalence regarding the error amplifier characteristics and isolation voltage ratings before substitution.
