DESCRIPTION

· The NCP1090, NCP1091, and NCP1092 are high-power PoE-PD interface controllers from ON Semiconductor, compliant with IEEE 802.3af standards.
· These devices integrate essential functions like detection, classification, under voltage lockout, inrush, and operational current limit.
· NCP1091 features programmable under-voltage lockout, and NCP1092 includes an auxiliary pin for additional supply support.
· Built with a robust high-voltage process, they include a vertical N-channel DMOS for durability in harsh environments.
· They are designed to complement industrial devices, offering solutions for industrial and security markets when combined with other high-voltage interfacing devices.

FEATURES

· Fully compliant with IEEE 802.3af specifications.
· Programmable classification current and adjustable under-voltage lockout (NCP1091 only).
· Open-drain power good indicator and 130 mA inrush current limit.
· 500 mA operational current limit and pass switch disabling input for auxiliary supply (NCP1092 only).
· Over-temperature protection and industrial temperature range from -40°C to 85°C, with full operation up to 125°C junction temperature.
· Features a 0.5/C0087 hot-swap pass-switch and vertical N-channel DMOS pass-switch for robustness.

APPLICATIONS

· Ideal for integration with stepper motor drivers and CAN bus drivers in industrial settings.
· Suitable for security market applications requiring reliable high-voltage interfacing.
· Can be used in environments demanding robust performance under harsh conditions.