High-Speed 10MBit/s Logic Gate Optocouplers
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onsemi HCPL2x OptoelectronicsDescription
onsemi HCPL2x High-Speed 10MBit/s Logic Gate Optocouplers are designed for logic gate applications requiring electrical isolation and fast data transmission. These optocouplers consist of an 850nm AlGaAs LED, optically coupled to a very high-speed integrated photo-detector logic gate. They support data rates up to 10Mbit/s, making them ideal for high-speed digital communication across isolated domains.
onsemi HCPL2x High-Speed 10MBit/s Logic Gate Optocouplers
Introduction
The onsemi HCPL2x series of High-Speed 10MBit/s Logic Gate Optocouplers are designed to facilitate fast data transmission while providing electrical isolation. These components are essential for applications that require reliable communication across isolated domains, making them a popular choice in various electronic designs.
Part Description
The HCPL2x optocouplers utilize an 850nm AlGaAs LED that is optically coupled to a high-speed integrated photo-detector logic gate. With the capability to support data rates of up to 10Mbit/s, these optocouplers ensure efficient and rapid data transfer. They feature a strobable output with an open collector, allowing for wired OR configurations. The devices are designed to operate within a temperature range of -40°C to +85°C, ensuring stable performance in diverse environments. Additionally, they boast a high common-mode transient immunity (CMR) of 10kV/µs, making them suitable for use in noisy industrial settings.

Applications
- Ground loop elimination
- LSTTL to TTL, LSTTL or 5V CMOS interfacing
- Line receivers and data transmission
- Data multiplexing
- Switching power supplies
- Pulse transformer replacement
- Computer-peripheral interfaces
Industries
- Telecommunications
- Industrial automation
- Consumer electronics
- Automotive
- Medical devices
- Data acquisition systems
Usage Ideas
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Data Communication Interface: Create a data communication interface between two microcontrollers using HCPL2x optocouplers to ensure electrical isolation and prevent ground loops.
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Switching Power Supply Design: Design a compact switching power supply that utilizes the HCPL2x for feedback isolation, enhancing the reliability and efficiency of the power conversion process.
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Signal Isolation in Robotics: Implement the HCPL2x in a robotic control system to isolate the control signals from the power circuits, ensuring safe operation and reducing noise interference.
Conclusion
The onsemi HCPL2x High-Speed 10MBit/s Logic Gate Optocouplers are versatile components that provide essential electrical isolation and fast data transmission capabilities. Their robust performance in various applications makes them invaluable in industries ranging from telecommunications to industrial automation. Whether for signal isolation, data communication, or power supply designs, the HCPL2x series stands out as a reliable choice for engineers and designers.