HCPL-0720

Logic Output Optoisolators Overview

The HCPL-0720 is a single-channel high-speed optocoupler manufactured by Broadcom Limited, housed in an SOIC-8 surface-mount package. It supports data rates up to 25 MBd with a maximum propagation delay of 40 ns and transition times of 9 ns rise and 8 ns fall. The device features an insulation voltage of 3750 Vrms and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a forward current of 10 mA, forward voltage of 5 V, and a maximum power dissipation of 150 mW. It provides a continuous output current of 10 mA and is designed for CMOS logic compatibility.

Logic Output Optoisolators Feature Summary

• Integrates CMOS LED driver, high-speed LED, and CMOS detector chip for low-power operation
• Provides high common-mode rejection capability of 10 kV/µs
• Compatible with 5V CMOS logic levels using only two bypass capacitors
• Includes integrated photodiode, transimpedance amplifier, and voltage comparator

Logic Output Optoisolators Applications

• Digital fieldbus isolation for CC-Link, DeviceNet, and PROFIBUS
• Plasma display panel (PDP) level shifting
• Multiplexed data transmission systems
• Computer peripheral interface isolation

Logic Output Optoisolators Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration, as variants exist for tube, reel, and cut tape formats. Ensure the selected part number includes the 'E' suffix if lead-free compliance is required. Confirm that the procurement source provides official datasheets matching the exact suffix to guarantee correct pinout and performance specifications. Cross-reference manufacturer part numbers with distributor identifiers to avoid substitution errors during sourcing.

Logic Output Optoisolators Selection Notes

Select this component when electrical isolation is required for digital signals operating at speeds up to 25 MBd. It is suitable for applications demanding low propagation delay and high common-mode immunity. Consider the SOIC-8 package for surface-mount assembly constraints. Verify that the system voltage requirements align with the 3750 Vrms insulation rating. Ensure the input current capabilities match the driving circuit's output specifications for reliable signal transmission.

Logic Output Optoisolators Part Context

This device belongs to the HCPL series of high-speed optocouplers from Broadcom. It utilizes advanced CMOS technology to achieve performance comparable to discrete logic gates while maintaining galvanic isolation. The series is designed for industrial and communication applications requiring robust signal integrity across isolated boundaries. It represents a solution for replacing traditional relay or transformer-based isolation in modern digital circuits.

Logic Output Optoisolators Replacement Considerations

Check for direct substitutes within the HCPL family such as HCPL-0630 for through-hole applications. Verify functional equivalence regarding data rate, insulation voltage, and package dimensions before substitution. Ensure any replacement part meets the same safety certifications including UL1577 and IEC standards. Confirm that alternative components support the required 25 MBd speed and 40 ns propagation delay specifications.