HCPL0638R2

Logic Output Optoisolators Overview

The HCPL0638R2 is a high-performance, dual-channel logic output optocoupler manufactured by onsemi. It features Schottky-clamped inputs for enhanced noise immunity and supports data rates up to 10 Mbps. The device provides a high common-mode transient immunity (CMTI) of 10 kV/µs, ensuring reliable signal transmission in electrically noisy environments. It operates within an isolation voltage range of 3750 Vrms and is housed in an 8-pin SOIC package.

Logic Output Optoisolators Feature Summary

• Dual-channel configuration with Schottky-clamped inputs for improved noise rejection
• High common-mode transient immunity rated at 10 kV/µs
• Logic output design suitable for digital communication interfaces

Logic Output Optoisolators Applications

• Industrial automation control systems
• Data communication equipment requiring galvanic isolation
• Power supply feedback loops

Logic Output Optoisolators Procurement Notes

Verify the specific suffix 'R2' corresponds to the reel packaging format required for your assembly line. Confirm that the 3750 Vrms isolation rating meets the safety standards applicable to your target market. Ensure input current limits are respected to maintain optimal CMTI performance during operation.

Logic Output Optoisolators Selection Notes

Select this component when dual-channel isolation with high-speed digital signaling is required. The Schottky clamp feature makes it suitable for applications with significant ground potential differences or high-frequency switching noise. Compare against single-channel variants if only one isolated path is needed to optimize board space and cost.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-063x series of high-speed optocouplers from onsemi. It is designed to replace older generations of logic output couplers that lack sufficient CMTI ratings. The series is widely used in modern industrial and telecommunications infrastructure where signal integrity under high-voltage stress is critical.

Logic Output Optoisolators Replacement Considerations

HCPL0638 is the base part number for the non-reel variant. Verify compatibility with legacy designs using HCPL0638 by checking pinout consistency and electrical parameter tolerances before substitution.