FOD2711V

Overview

The FOD2711V is an optically isolated amplifier manufactured by onsemi, designed for precision error amplification in isolated power systems. It integrates a high-precision programmable shunt reference with a phototransistor output coupler. The device provides 5000 Vrms isolation voltage and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a minimum current transfer ratio of 100% at 10 mA input current, a maximum collector-emitter saturation voltage of 400 mV, and a maximum collector-emitter voltage of 30 V. The unit is housed in an 8-DIP package.

Feature Summary

• Integrates AZ431L precision programmable shunt reference with an optocoupler for closed-loop control
• Provides high-voltage galvanic isolation between input and output circuits
• Features low collector-emitter saturation voltage for efficient signal transmission

Applications

• Switching power supply feedback loops
• Isolated error amplification circuits
• Battery management system monitoring

Procurement Notes

Verify the specific suffix 'V' indicates the DIP package variant distinct from surface-mount versions like 'AS'. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the operating environment remains within the specified thermal limits to maintain reference accuracy and isolation integrity during long-term deployment.

Selection Notes

Select this component when a monolithic solution combining a precise voltage reference with optical isolation is required. It is suitable for applications demanding high common-mode transient immunity and minimal external component count. Compare against discrete reference and optocoupler combinations to evaluate board space savings and performance consistency in regulated power architectures.

Part Context

This part belongs to the FOD2711A series of optically isolated amplifiers. It serves as a specialized alternative to separate reference and optocoupler designs, offering matched thermal characteristics between the reference and detector. The series is engineered for industrial and consumer power conversion applications requiring reliable galvanic separation.

Replacement Considerations

The FOD2711V is listed as obsolete in some distributor catalogs. Verify availability of active replacements such as the FOD2711AS or FOD2711ASD if DIP packaging constraints can be relaxed. Check pinout compatibility before substituting with other isolated error amplifiers.