HCPL-4661-000E

Logic Output Optoisolators Overview

The HCPL-4661-000E is a dual-channel high-speed logic output optocoupler from the Broadcom HCPL series. It integrates a GaAsP LED with an integrated high-gain photo detector and Schottky clamping for fast switching. Key electrical parameters include a data rate of 10 Mb/s, isolation voltage of 3750 Vrms, and common-mode transient immunity of 15 kV/µs. The device operates within a temperature range of -40°C to +85°C, supports a supply voltage of 4.5V to 5.5V, and features a maximum forward current of 20mA with typical rise and fall times of 24ns and 10ns respectively.

Logic Output Optoisolators Feature Summary

• Integrates Schottky clamping on the output stage to minimize storage time and enhance switching speed.
• Provides high common-mode transient immunity (CMTI) of 15 kV/µs for reliable noise rejection.
• Features TTL-compatible logic outputs suitable for direct interfacing with digital systems.

Logic Output Optoisolators Applications

• Industrial networking systems
• Isolation of diverse voltage levels in electronic circuits
• High-speed signal transmission between logic families

Logic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm that the part number suffix matches the specific package and tape/reel requirements if applicable. Ensure compliance with RoHS directives and relevant safety certifications such as UL and CSA before integration into final designs.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required alongside robust noise immunity. The dual-channel configuration allows for cost-effective implementation of isolated bidirectional data buses. Consider the DIP-8 package constraints for PCB layout and thermal management relative to the 60mW power dissipation rating.

Logic Output Optoisolators Part Context

This device belongs to the HCPL series of high-speed optocouplers designed for demanding industrial applications. It combines advanced semiconductor technology with reliable optical isolation to ensure signal integrity across galvanic barriers while maintaining compatibility with standard logic interfaces.

Logic Output Optoisolators Replacement Considerations

Check datasheets for pinout compatibility and electrical parameter equivalence. Verify that alternative parts meet the same 10 Mb/s data rate and 15 kV/µs CMTI specifications to maintain system performance without redesigning isolation barriers.

Logic Output Optoisolators FAQ

What is the typical common-mode transient immunity (CMTI) of the HCPL-4661-000E?

The typical CMTI is 15 kV/µs, ensuring effective rejection of rapid voltage transients.

Does the HCPL-4661-000E include output clamping?

Yes, it features Schottky clamping on the output transistor to reduce storage time and improve switching speed.