FOD073LR2

Overview

The FOD073LR2 is a high-speed, single-channel optocoupler manufactured by onsemi. It integrates an AlGaAs infrared LED emitter with a high-speed integrated circuit output (HIOCO) photodetector. The device provides electrical isolation between input and output circuits while transmitting digital signals. Key electrical characteristics include a propagation delay of typically 15 ns and a pulse width distortion of 5 ns. It operates with a supply voltage range of 4.5 V to 5.5 V for the output stage. The component supports data rates up to 10 Mbps and features a common-mode transient immunity of 50 kV/µs minimum.

Feature Summary

• High-speed signal transmission capability suitable for digital communication interfaces
• Integrated high-speed output circuitry for fast switching performance
• Robust common-mode transient immunity for noise rejection in noisy environments
• Single-channel configuration simplifying circuit design

Applications

• Digital isolation in industrial automation systems
• Signal isolation in power supply feedback loops
• Data communication interface isolation
• Microcontroller I/O isolation

Procurement Notes

Verify the specific suffix LR2 indicates the tape and reel packaging format when ordering. Confirm the operating temperature range requirements match the application environment. Ensure input current settings align with the datasheet specifications to guarantee optimal performance and longevity of the internal LED component.

Selection Notes

Select this component when high-speed digital isolation is required within a single channel. Consider the propagation delay and pulse width distortion parameters if timing precision is critical. Evaluate the common-mode transient immunity against potential noise sources in the target application environment to ensure reliable operation.

Part Context

This part belongs to onsemi's family of high-speed optocouplers designed for robust signal isolation. The FOD073 series utilizes advanced AlGaAs technology to achieve superior speed and reliability compared to standard GaAs devices. It is engineered for applications demanding fast response times and high noise immunity in compact packages.

Replacement Considerations

Check for direct pin-compatible replacements from onsemi or other manufacturers offering similar HIOCO technology. Verify that any substitute matches the 10 Mbps data rate and 50 kV/µs CMTI specifications. Ensure the replacement package type and thermal characteristics are compatible with the existing board layout.