Broadcom

HCPL-0738-500E

HCPL-0738-500E Description

The HCPL-0738-500E from Broadcom is a dual-channel, high-speed optoisolator designed for robust signal isolation in demanding electronic applications. It features an open-collector output configuration and delivers a high data rate of 15MBd, making it suitable for high-speed digital signal transmission. With an isolation voltage of 3750Vrms, it ensures reliable galvanic isolation, critical for protecting sensitive circuits from high-voltage transients. The device operates within a 4.5V to 5.5V supply range and offers low propagation delays (60ns max), ensuring minimal signal distortion. Its common-mode transient immunity (10kV/µs) enhances noise rejection in electrically noisy environments.

HCPL-0738-500E Features

• Dual-Channel Isolation: Two independent channels (2/0 input/output configuration) for bidirectional or redundant signal isolation.
• High-Speed Performance: 20ns rise time and 25ns fall time enable efficient signal switching.
• Robust Isolation: 3750Vrms isolation and 10kV/µs CMTI for superior noise immunity.
• Open-Collector Output: Allows flexible interfacing with various logic families.
• Low Power Consumption: 1.5V forward voltage (Typ) and 20mA max forward current ensure energy efficiency.
• Surface-Mount Package: 8-pin SOIC package in Tape & Reel (TR) for automated assembly.
• Reliable Compliance: REACH unaffected, MSL 1 (unlimited), and EAR99/ECCN certified for global use.

HCPL-0738-500E Applications

• Industrial Automation: Isolate digital signals in PLCs, motor drives, and control systems.
• Medical Electronics: Ensure patient safety in medical equipment requiring high-voltage isolation.
• Telecommunications: Protect high-speed data lines in networking and communication devices.
• Power Electronics: Interface gate drivers in inverters and power supplies with noise immunity.
• Automotive Systems: Enhance signal integrity in EV battery management and CAN bus systems.

Conclusion of HCPL-0738-500E

The HCPL-0738-500E stands out as a high-performance optoisolator, combining speed, reliability, and isolation strength in a compact package. While now obsolete, its legacy in industrial and medical applications remains notable. Engineers seeking alternatives should consider modern equivalents with similar 15MBd data rates and high CMTI, but the HCPL-0738-500E’s proven performance in noise-prone environments makes it a benchmark for optocoupler design.