HCPL-4661-320E

Logic Output Optoisolators Overview

The HCPL-4661-320E is a high-speed optocoupler featuring two independent channels in an 8-pin DIP Gull Wing package. It provides a data rate of 10 Mb/s with a typical rise time of 24 ns and fall time of 10 ns. The device offers 5000 Vrms isolation voltage and 15 kV/µs common-mode transient immunity (CMTI). It utilizes open collector outputs with Schottky clamping, supporting a maximum forward current of 20 mA and output current of 50 mA. Operating temperatures range from -40°C to +85°C.

Logic Output Optoisolators Feature Summary

• Integrates GaAsP LED with high-gain photo detector for fast logic signal transmission
• Features Schottky-clamped open collector outputs to minimize storage time
• Provides high common-mode transient immunity for noise-sensitive environments

Logic Output Optoisolators Applications

• High-speed digital isolation in industrial communication interfaces
• Signal coupling in motor control and power supply circuits
• Isolation barriers in data acquisition systems

Logic Output Optoisolators Procurement Notes

Verify the specific suffix '320E' to confirm the gull-wing package and RoHS compliance status. Ensure the required isolation voltage rating of 5000 Vrms meets system safety standards. Confirm that the open collector output configuration aligns with the downstream logic interface requirements before finalizing procurement.

Logic Output Optoisolators Selection Notes

Select this component when high-speed data transfer up to 10 Mb/s is required alongside robust electrical isolation. The 15 kV/µs CMTI makes it suitable for noisy environments where standard optocouplers may fail. Compare against the HCPL-4661-000E if a through-hole PDIP package is preferred instead of the surface-mount compatible gull-wing form factor.

Logic Output Optoisolators Part Context

This part belongs to the Broadcom HCPL series of high-speed optocouplers. It combines a gallium arsenide phosphide infrared emitting diode with an integrated high-gain photodetector. The series is designed for applications requiring fast propagation delays and high reliability in isolating digital signals across different voltage domains.

Logic Output Optoisolators Replacement Considerations

The HCPL-4661-000E serves as a functional equivalent but utilizes a PDIP-8 through-hole package rather than the gull-wing variant. Verify pinout compatibility and package dimensions during substitution to ensure mechanical fit within the existing PCB layout.