HCPL-7721-020

Logic Output Optoisolators Overview

The HCPL-7721-020 is a high-speed logic output optoisolator manufactured by Broadcom Limited. It features a single channel with a data rate of 25 Mb/s and an insulation voltage of 5000 Vrms. The device utilizes a push-pull, totem pole output configuration with a common mode transient immunity of 10 kV/µs. Electrical parameters include a forward current of 10 mA, forward voltage of 5 V, rise time of 9 ns, and fall time of 8 ns. Output current is rated at 10 mA with power dissipation of 150 mW. It operates within a temperature range of -40°C to +85°C and is housed in an 8-pin PDIP package.

Logic Output Optoisolators Feature Summary

• High-speed digital isolation capability for reliable signal transmission
• Push-pull output stage ensures fast switching performance
• Robust common mode transient immunity protects against noise

Logic Output Optoisolators Applications

• Industrial digital fieldbus isolation such as CC-Link, DeviceNet, and PROFIBUS
• Microprocessor interface circuits requiring galvanic separation
• Data transmission systems needing high-speed signal integrity

Logic Output Optoisolators Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS non-compliance and lead content prior to integration. Validate package type and pinout compatibility with existing PCB layouts. Ensure thermal management aligns with specified power dissipation limits during operation.

Logic Output Optoisolators Selection Notes

Select this component when high-speed isolation exceeding standard optocoupler capabilities is required. Consider the specific CMTI rating for noisy industrial environments. Evaluate the PDIP package constraints against available board space. Assess the need for push-pull outputs versus open-collector alternatives for drive strength requirements.

Logic Output Optoisolators Part Context

This part belongs to the HCPL-7721 series of high-speed optocouplers designed for demanding communication applications. The series provides enhanced performance over traditional logic output isolators. It serves as a critical interface component between microprocessors and fieldbus networks.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-reference options directly with manufacturer resources or authorized distributors for equivalent specifications.