FOD050L

Overview

The FOD050L is a high-speed optocoupler from onsemi, featuring an AlGaAs LED optically coupled to a photodetector transistor with a base terminal. It operates at data rates up to 1 Mbit/s and provides electrical isolation of 2500Vrms. The device is housed in an 8-SOIC package, suitable for surface mount applications. Key electrical parameters include a typical rise/fall time of 1µs, a maximum forward current of 25 mA, and a collector-emitter voltage of 7V. It functions within a temperature range of -40°C to 85°C.

Feature Summary

• High-speed operation supporting data transmission rates up to 1 Mbit/s
• Integrated base terminal on the phototransistor output for enhanced control
• Robust electrical isolation capability rated at 2500Vrms

Applications

• High-speed logic interface circuits requiring galvanic isolation
• Data communication systems utilizing LVTTL or LVCMOS logic levels
• Industrial control systems needing fast signal transfer between isolated domains

Procurement Notes

Verify the specific ordering suffix when purchasing, as variants such as FOD050LR2 indicate reel packaging while standard FOD050L may refer to tube packaging. Confirm that the required isolation voltage and speed meet the system design specifications before integration. Ensure compatibility with the target logic family voltages. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select the FOD050L when application requirements demand high-speed signal transmission exceeding standard optocoupler capabilities but do not require the higher speeds of 10 Mbit/s devices. The integrated base allows for faster switching than base-less counterparts. Consider the 8-SOIC footprint for space-constrained PCB layouts. Evaluate the CTR range to ensure sufficient drive capability for the downstream load under varying temperature conditions.

Part Context

This component belongs to the FOD series of high-speed optocouplers by onsemi. It shares architectural similarities with the FOD053L, differing primarily in specific electrical characteristics and pin configurations. The series is designed to bridge low-voltage digital logic with higher voltage isolated circuits, providing reliable signal integrity in noisy environments common in industrial and commercial electronics.

Replacement Considerations

The FOD053L is a documented related part within the same product family. Verify pinout compatibility and specific electrical parameter differences before substitution. Other generic high-speed optocouplers may serve as alternatives only if isolation ratings, speed, and package dimensions match exactly.