DESCRIPTION

· The NCP1090, NCP1091, and NCP1092 are high-power PoE-PD interface controllers compliant with IEEE 802.3af standards.

· These devices integrate essential functions like detection, classification, under-voltage lockout, inrush, and operational current limits.

· NCP1091 features programmable under-voltage lockout, while 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.

FEATURES

· Fully compliant with IEEE 802.3af specifications.

· Includes programmable classification current and adjustable under-voltage lockout (NCP1091).

· Features an open-drain power good indicator and limits inrush current to 130 mA.

· Operational current limit set at 500 mA with over-temperature protection.

· Operates in an industrial temperature range from -40°C to 85°C, with full operation up to 125°C junction temperature.

APPLICATIONS

· Suitable for integration with industrial devices such as stepper motor drivers and CAN bus drivers.

· Ideal for use in industrial and security market solutions requiring high-voltage interfacing.