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Ⅰ.Overview of product

HCPL0661-500E is a high-speed dual-channel logic output optoisolator developed by Broadcom Limited, featuring superior transient immunity and stable high-rate signal transmission. It is widely used for electrical isolation and signal protection in high-speed industrial digital circuits.

Ⅱ.Core parameter

Category:Isolators,Optocouplers,Optoisolators, Logic Output Optoisolators

Data Rate:10MBd

Manufacturer:Broadcom Limited

Propagation Delay tpLH / tpHL (Max):100ns, 100ns

Packaging:Tape & Reel

Rise / Fall Time (Typ) :24ns,10ns

Part Status:Active

Voltage - Forward (Vf) (Typ):1.5V

Number of Channels:2

Current - DC Forward (If) (Max):15mA

Inputs - Side 1/Side 2:2/0

Voltage - Supply:4.5V ~ 5.5V

Voltage - Isolation:3750Vrms

Operating Temperature:-40°C ~ 85°C

Common Mode Transient Immunity (Min):15kV/µs

Mounting Type:Surface Mount

Input Type:DC

Package / Case:8-SOIC (0.154", 3.90mm Width)

Output Type:Open Collector, Schottky Clamped

Current - Output / Channel:50 mA

Ⅲ.Main characteristics

High Speed:The optoisolator supports a maximum data transmission rate of 10MBd with extremely short rise and fall time parameters. It ensures ultra-fast and error-free digital signal transmission for high-frequency operating circuits.

Low Delay:It features a maximum propagation delay of only 100ns for both high and low level transitions. The low-delay characteristic effectively avoids signal phase deviation and ensures circuit synchronization accuracy.

Strong Immunity:It provides excellent common mode transient immunity up to 15kV/µs, resisting severe high-speed transient interference in industrial environments. It maintains stable signal output without distortion under harsh electromagnetic conditions.

High Isolation:The device is equipped with 3750Vrms high isolation voltage to separate low-voltage control circuits and high-voltage power circuits. It effectively prevents electric leakage and improves the overall safety of electronic systems.

Dual Channel:Designed with two independent signal channels, it can transmit two groups of signals simultaneously in a single chip. It saves PCB layout space and simplifies peripheral circuit design greatly.

Low Power:It has a typical forward voltage of 1.5V and a maximum forward current of 15mA, realizing low-power operating status. This feature reduces system power consumption and adapts to energy-saving electronic design requirements.

Wide Adaptation:It works stably in a temperature range of -40°C to 85°C and a supply voltage range of 4.5V to 5.5V. It can adapt to most industrial and commercial electronic working environments.

Ⅳ.Application field

Bus Isolation:It is used for high-speed signal isolation of industrial field bus interfaces such as PROFIBUS and CAN bus. It eliminates common-mode interference on bus lines and guarantees stable data communication between industrial equipment.

PLC Signal:Applied in programmable logic controller digital signal input and output isolation circuits. It isolates external field strong interference signals to protect the internal core control unit of PLC equipment.

Motor Control:Deployed in servo motor and frequency converter high-speed pulse signal feedback circuits. It isolates drive power interference and ensures accurate closed-loop control of motor speed and position.

Data Interface:Suitable for isolation protection of high-speed serial communication interfaces of industrial computers. It filters out transient pulse interference and improves the reliability of equipment data interaction.

Power Control:Used in switching power supply signal sampling and feedback isolation circuits. It isolates high-frequency switching noise and stabilizes the voltage regulation feedback signal of power supplies.

Instrument Detection:Applied in high-precision industrial detection instrument signal transmission links. It prevents circuit crosstalk interference and ensures the accuracy of detection data output.

 
Ⅴ.Summary

HCPL0661-500E is a high-speed, high-reliability dual-channel logic optoisolator with outstanding anti-interference performance and low-delay transmission capability. It serves as an indispensable isolation component for high-speed digital signal processing in industrial control and power electronic systems.