HCPL-4661-020E

Logic Output Optoisolators Overview

The HCPL-4661-020E is a high-speed, dual-channel optocoupler from the Broadcom HCPL series. It integrates a GaAsP light-emitting diode with an integrated high-gain photodetector featuring Schottky clamping. The device offers a data rate of 10 Mb/s and supports an output current of 50 mA. Key electrical parameters include a forward voltage of 1.5 V, rise time of 24 ns, and fall time of 10 ns. It provides 5000 Vrms isolation voltage and operates within a temperature range of -40°C to +85°C. The component is housed in an 8-pin PDIP package.

Logic Output Optoisolators Feature Summary

• Combines a GaAsP LED with a high-gain photodetector for high-speed signal transmission
• Features Schottky-clamped outputs to minimize storage time and enhance switching speed
• Provides high common-mode rejection immunity for noise-sensitive applications
• TTL-compatible logic output design simplifies interface requirements

Logic Output Optoisolators Applications

• Industrial networking systems requiring galvanic isolation
• Data communication circuits operating at high speeds
• General-purpose digital isolation for diverse voltage levels

Logic Output Optoisolators Procurement Notes

Verify the specific suffix (020E) against official datasheets to confirm packaging type and compliance status. Ensure the procurement source provides valid UL and CSA certification documentation. Cross-reference the manufacturer part number with the latest Broadcom Limited product announcements to avoid obsolete stock. Confirm that the received components match the specified PDIP-8 package dimensions and pinout configuration.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required alongside robust common-mode transient immunity. The open-collector output necessitates appropriate pull-up resistor selection based on the target logic voltage level. Consider the 50 mA output current capability for driving low-impedance loads directly. Evaluate the thermal performance within the specified operating temperature range during system integration.

Logic Output Optoisolators Part Context

This device belongs to the HCPL series of high-speed optocouplers designed by Broadcom Limited. The series is characterized by its use of GaAsP technology and integrated Schottky clamping for improved performance. These components are engineered to replace older logic gate optocouplers while offering superior speed and reliability in industrial and commercial environments.

Logic Output Optoisolators Replacement Considerations

Check for direct substitutes within the HCPL-4661 family or equivalent high-speed TTL-compatible optocouplers from other manufacturers. Verify pin compatibility and isolation voltage ratings before substitution. Ensure that any replacement maintains the same 10 Mb/s data rate and 5000 Vrms isolation specification.