FOD2743ATV

Overview

The FOD2743ATV is an obsolete optically isolated amplifier from onsemi, featuring a photovoltaic output configuration. It provides high-voltage isolation with a rated insulation voltage of 5000 Vrms. The device operates within a temperature range of -40°C to +85°C and is housed in an 8-DIP package. As a photovoltaic output optoisolator, it utilizes an internal charge pump mechanism to drive the output transistor, enabling linear signal transmission across the isolation barrier without requiring external biasing for the output stage.

Feature Summary

• Photovoltaic output architecture eliminates the need for external collector bias voltage
• High-voltage electrical isolation capability for safety-critical applications
• Linear error amplifier design suitable for precision feedback loops

Applications

• Switch-mode power supply error amplification
• Isolated feedback control circuits
• Medical equipment signal isolation

Procurement Notes

This component is officially listed as obsolete by the manufacturer and is no longer in production. Sourcing is limited to existing stock or surplus channels. Verify authenticity carefully due to potential counterfeits in the aftermarket. Confirm package integrity and pin compatibility before integration into new designs.

Selection Notes

Designers should prioritize replacement components due to the discontinued status of this part. Evaluate alternatives with similar photovoltaic output characteristics and comparable isolation ratings. Ensure that substitute devices meet the required thermal performance and packaging constraints for the intended application environment.

Part Context

The FOD2743ATV belongs to the FOD2743B series of optically isolated amplifiers. It shares functional similarities with other members of the family but differs in packaging and specific electrical tolerances. This series was designed for applications requiring precise analog signal transfer across isolation barriers.