HCPL-663K

Logic Output Optoisolators Overview

The HCPL-663K is a high-speed optocoupler featuring two independent channels within a hermetically sealed LCCC-20 package. It supports data rates up to 10 MBd with propagation delays of 100 ns maximum. The device utilizes an open collector output type capable of handling 25 mA per channel, clamped by Schottky diodes for protection. Key electrical parameters include a forward voltage of 1.5 V at 20 mA input current and a reverse voltage rating of 5 V. Insulation voltage is rated at 1500 Vrms, ensuring robust isolation. Power dissipation is limited to 200 mW, with operating temperatures ranging from -55°C to +125°C.

Logic Output Optoisolators Feature Summary

• Hermetically sealed construction in a leadless ceramic chip carrier package for enhanced reliability.
• Dual-channel design providing independent signal isolation paths.
• Schottky-clamped open collector outputs for fast switching and noise immunity.

Logic Output Optoisolators Applications

• High-voltage industrial control systems requiring galvanic isolation.
• Space-qualified electronic circuits demanding radiation hardness and hermetic sealing.
• Fast digital communication interfaces needing high common-mode transient immunity.

Logic Output Optoisolators Procurement Notes

Verify the specific suffix and manufacturing lot against official Broadcom datasheets to confirm hermetic seal integrity and space qualification status. Ensure the ordering part number matches the exact pinout and package dimensions specified for the LCCC-20 configuration. Cross-reference component markings with authorized distributor certificates to prevent counterfeit infiltration. Confirm compliance with RoHS directives if applicable to the specific production batch.

Logic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high-speed performance is required in harsh environments. The hermetic seal makes it suitable for aerospace or military applications where moisture resistance is critical. Compare propagation delay specifications against system timing requirements to ensure compatibility with 10 MBd signals. Evaluate thermal management needs given the 200 mW power dissipation limit in enclosed spaces.

Logic Output Optoisolators Part Context

Part of the HCPL-663 series, this device represents a specialized line of high-speed optocouplers designed for demanding applications. Unlike standard plastic-packaged variants, the ceramic construction offers superior environmental stability. It serves as a bridge between low-voltage logic circuits and high-voltage domains, maintaining signal integrity while preventing ground loops and electrical interference across isolated boundaries.

Logic Output Optoisolators Replacement Considerations

HCPL-6631 is a through-hole equivalent in the same family. Verify package compatibility and insulation voltage ratings before substitution. Check if the application requires surface-mount versus through-hole mounting styles. Ensure that the replacement part maintains the same hermetic sealing characteristics if environmental resilience is critical.