HCPL-0661-500E

Logic Output Optoisolators Overview

The HCPL-0661-500E is a high-speed, dual-channel logic output optocoupler manufactured by Broadcom Limited. It features an AlGaAs or GaAsP LED coupled to a high-gain integrated photodetector with Schottky-clamped open-collector outputs. The device supports data rates up to 10 MBd and provides an isolation voltage of 3750 Vrms. Key electrical parameters include a typical rise time of 24 ns, fall time of 10 ns, and a minimum common-mode transient immunity (CMTI) of 15 kV/µs. It operates within a supply voltage range of 4.5V to 5.5V and withstands a maximum forward current of 15 mA per channel.

Logic Output Optoisolators Feature Summary

• High common-mode transient immunity ensures reliable signal transmission in noisy environments.
• Schottky-clamped open-collector outputs support wired-OR logic configurations for flexible circuit design.
• Integrated shielding structure minimizes capacitive coupling between input and output sides.

Logic Output Optoisolators Applications

• Computer peripheral interface isolation
• Data isolation and conversion circuits
• Switching power supply feedback loops

Logic Output Optoisolators Procurement Notes

Verify the suffix '500E' confirms the reel packaging format as specified in official documentation. Ensure compliance with RoHS directives and check for specific marking revisions if required for long-term production runs. Confirm the SOIC-8 package dimensions match the target PCB footprint before finalizing procurement orders.

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 efficient board space utilization compared to single-channel alternatives. Verify that the open-collector output type aligns with the downstream logic gate requirements and pull-up resistor specifications.

Logic Output Optoisolators Part Context

This part belongs to the HCPL series of high-speed optocouplers originally developed by Fairchild Semiconductor and later acquired by Avago Technologies, now Broadcom. The series includes variants like HCPL-0600 and HCPL-0631, differentiated primarily by channel count and specific logic output characteristics within the same high-performance family.

Logic Output Optoisolators Replacement Considerations

HCPL-0661-000E

Logic Output Optoisolators FAQ

What is the maximum common-mode transient immunity rating?

The device guarantees a minimum CMTI of 15 kV/µs on both channels.

Does the output support wired-OR functionality?

Yes, the Schottky-clamped open-collector outputs allow for wired-OR logic connections.