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FOD2743AV
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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)：50% @ 1mA
- Current Transfer Ratio (Max)：100% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.07V
- 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 FOD2743AV is a single-channel transistor output optocoupler designed as an error amplifier coupler. It features a nominal current transfer ratio of 50% and a collector-emitter breakdown voltage of 70 V minimum. The device supports a maximum forward current of 20 mA with a forward voltage of 1.2 V. It provides high isolation capability with a maximum insulation voltage of 5000 V. The component operates within a temperature range of -40°C to +85°C and is available in an 8-pin DIP package.
Feature Summary
- Integrated phototransistor output for error amplifier applications
- High isolation voltage rating for safety-critical circuits
- UL and VDE approved for international compliance
Applications
- Switching power supply feedback loops
- Industrial control signal isolation
- Microcontroller interface isolation
Procurement Notes
Verify the specific suffix (AV) against the manufacturer's current production status, as this variant may be obsolete or superseded by newer generations from onsemi. Confirm RoHS compliance and lead-free specifications match project requirements. Ensure the DIP-8 package dimensions align with PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when a dedicated error amplifier coupler is required for isolated feedback paths. The 50% CTR specification suits applications requiring moderate gain stability. Consider the 70 V collector-emitter voltage rating for low-voltage output stages. Verify thermal management needs for the operating temperature range up to 85°C.
Part Context
This part belongs to the Fairchild Semiconductor FOD2743 series of optically isolated amplifiers. The series includes variants like FOD2741 and FOD2743BTV, differing primarily in current transfer ratio and packaging options. The FOD2743AV specifically denotes the AV suffix configuration within this family.
Replacement Considerations
Check for direct replacements such as FOD2743BTV or FOD2743CSDV, ensuring pin compatibility and electrical parameter equivalence. Verify if onsemi offers updated versions with identical functionality.
