HCPL-315J-500E

The HCPL-315J-500E is a dual-channel high-speed logic gate optocoupler manufactured by Broadcom, engineered to deliver galvanic digital signal isolation within a compact SOP-16 surface‑mount package. Employing AlGaAs LED inputs and integrated high‑gain photodetectors, this device supports data rates up to 10 MBd with propagation delays typically below 100 ns, while its push‑pull totem‑pole outputs provide TTL/CMOS‑compatible logic levels. Robust common‑mode transient immunity exceeding 15 kV/µs and a minimum isolation voltage rating of 3750 Vrms enable reliable operation in high‑noise industrial environments.

Primary applications include isolated SPI, RS‑485, and general‑purpose digital I/O interfaces within industrial automation systems, motor drives, and programmable logic controllers, where consistent data transmission across high‑voltage isolation barriers is essential. In aerospace and defense electronics, these couplers serve in data acquisition front‑ends, power converter feedback loops, and avionics communication buses that demand high noise immunity and long‑term stability. The -500E suffix designates tape‑and‑reel packaging for automated pick‑and‑place assembly. While the device operates over an industrial temperature range of -40 °C to +100 °C, procurement teams should note that enhanced screening or MIL‑STD‑883 qualification is not inherent to this commercial part number and must be verified through Broadcom’s high‑reliability product paths if required. Broadcom maintains extended lifecycle support for its optocoupler families, though supply‑chain planning should anticipate allocation considerations during sustained demand.