FOD2711AV

Overview

The FOD2711AV is an optically isolated error amplifier integrating a precision programmable shunt reference and an optocoupler. It provides high-voltage isolation with a maximum collector-emitter saturation voltage of 400 mV and a current transfer ratio up to 200% at 10 mA input. The device supports a maximum collector current of 50 mA per channel and operates within a temperature range of -40°C to 85°C. Power dissipation is rated at 145 mW, ensuring stable performance in feedback loop applications requiring precise voltage regulation and electrical isolation.

Feature Summary

• Integrates a precision programmable shunt reference with an optocoupler for compact error amplification
• Provides high-voltage isolation suitable for sensitive control circuits
• Features low saturation voltage for efficient signal transmission

Applications

• Switching power supply feedback loops
• Isolated voltage regulation systems
• Industrial control circuitry requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'V' indicates the correct packaging variant, typically tube or tape-and-reel configurations as defined by onsemi. Confirm that the 8-pin DIP package matches the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the datasheet revision date to guarantee compatibility with current manufacturing standards.

Selection Notes

Select this component when a combined reference and isolation solution is required to minimize board space. The integrated shunt reference eliminates the need for external voltage references, simplifying design. Consider the 5 kV isolation rating for safety compliance in mains-connected equipment. Evaluate the 50 mA output current capability against the load requirements of the downstream control stage.

Part Context

This part belongs to onsemi's family of optically isolated amplifiers. It combines the AZ431L precision shunt reference technology with optocoupler functionality. This integration distinguishes it from standard optocouplers that require external reference components. The device is designed for applications demanding both accurate voltage sensing and robust electrical isolation between primary and secondary sides.

Replacement Considerations

Direct substitutes must match the 8-pin DIP package and integrated shunt reference architecture. Verify equivalent isolation voltage ratings and current transfer ratios. Check pinout compatibility to ensure seamless replacement without PCB redesign. Consult onsemi documentation for any newer revisions with improved thermal or electrical specifications.