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FOD2741ATV
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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 (0.400", 10.16mm)
- Supplier Device Package：8-DIP
- Grade：-
- Qualification：-
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Overview
The FOD2741ATV is a single-channel optically isolated error amplifier manufactured by Fairchild Semiconductor. It integrates a precision programmable shunt reference (KA431) with an NPN phototransistor output in an 8-pin DIP package. Key electrical parameters include a minimum collector-emitter breakdown voltage of 70 V, a maximum forward current of 20 mA, and a nominal current transfer ratio of 100%. The device supports an operating temperature range from -25°C to 85°C and provides 5000 Vrms isolation voltage.
Feature Summary
- Integrates KA431 precision programmable shunt reference with phototransistor output
- Provides high-voltage electrical isolation between input and output circuits
- Designed for stable feedback control in switching power supply applications
Applications
- Switching power supply feedback loops
- Isolated error amplification circuits
- Voltage regulation systems requiring galvanic isolation
Procurement Notes
Verify the specific suffix 'TV' corresponds to the tape-and-reel packaging variant when sourcing. Confirm RoHS compliance status and lead-free designation against the latest manufacturer documentation. Ensure the supplier source aligns with Fairchild Semiconductor or authorized onsemi distributors following corporate integration. Validate that the component meets required safety certifications such as UL and VDE for the intended application environment.
Selection Notes
Select this component when a combined reference and isolation stage is required to minimize board space. The integrated design simplifies circuit topology compared to discrete solutions. Consider the 8-pin DIP package constraints for through-hole assembly processes. Evaluate the 100% CTR specification against load requirements to ensure adequate signal transmission margin under varying temperature conditions.
Part Context
This part belongs to the FOD2741 series of optically isolated amplifiers originally developed by Fairchild Semiconductor. Following the acquisition, production and distribution are managed under the onsemi brand portfolio. The series is characterized by its integration of a shunt reference with an optocoupler, distinguishing it from standard digital or analog isolators.
Replacement Considerations
Cross-reference with FOD2741B or FOD2741ASDV for pin-compatible alternatives. Verify if different current transfer ratios or packaging formats meet specific design constraints. Check for updated datasheets reflecting post-integration manufacturing changes.
