Broadcom

HCPL-7721

HCPL-7721 Description

The HCPL-7721 from Broadcom Limited is a high-performance, single-channel logic output optoisolator designed for applications requiring robust signal isolation and fast data transmission. With an isolation voltage of 3750Vrms, it ensures reliable galvanic isolation between input and output circuits, making it suitable for high-voltage environments. The device operates within a supply voltage range of 4.5V to 5.5V and delivers a 10 mA output current, supporting efficient signal transfer. Its push-pull output configuration eliminates the need for an external pull-up resistor, simplifying circuit design. The HCPL-7721 is housed in an 8-pin DIP package and is REACH compliant, ensuring environmental safety.

HCPL-7721 Features

• High-Speed Performance: Features a data rate of 25MBd with rise/fall times of 9ns and 8ns, enabling rapid signal processing.
• Superior Noise Immunity: Offers common-mode transient immunity (CMTI) of 10kV/µs, ensuring stable operation in noisy industrial environments.
• Low Propagation Delay: 40ns maximum propagation delay (tpLH/tpHL) ensures minimal signal latency.
• Wide Operating Voltage: Compatible with 4.5V–5.5V supplies, making it versatile for various logic-level applications.
• Robust Isolation: 3750Vrms isolation protects sensitive components from high-voltage transients.
• Reliable Packaging: MSL 1 (Unlimited) rating ensures long shelf life and ease of handling.

HCPL-7721 Applications

The HCPL-7721 is ideal for:

• Industrial Automation: Isolating digital signals in PLCs, motor drives, and control systems.
• Medical Equipment: Ensuring patient safety by isolating sensitive circuits in diagnostic devices.
• Power Electronics: Protecting low-voltage logic in inverters, SMPS, and gate drivers.
• Communication Systems: Isolating high-speed data lines in networking and telecom equipment.
• Automotive Systems: Enhancing reliability in EV battery management and charging systems.

Conclusion of HCPL-7721

The HCPL-7721 stands out as a high-speed, high-reliability optoisolator with exceptional noise immunity and isolation capabilities. Its push-pull output, fast switching, and robust construction make it a superior choice for demanding applications in industrial, medical, and automotive sectors. Broadcom's commitment to quality ensures long-term performance, making the HCPL-7721 a trusted solution for critical isolation needs.