ON Semiconductor NCP1091DBRG

Description
The NCP1090, NCP1091, and NCP1092 are PoE-PD interface controllers that fully support IEEE 802.3af specifications. They integrate essential functions such as detection, classification, under voltage lockout, inrush and operational current limit, and a power good indicator. The NCP1091 offers programmable under-voltage, while the NCP1092 provides an auxiliary pin for applications with auxiliary supplies.

Features
Supports IEEE 802.3af specifications
Programmable classification current
Adjustable under voltage lockout (NCP1091 only)
Open-drain power good indicator
130 mA inrush current limit
500 mA operational current limit
Pass switch disabling input for rear auxiliary supply operation (NCP1092 only)
Over-temperature protection
Industrial temperature range (-40°C to 85°C) with full operation up to 125°C junction temperature
0.5 Ω hot-swap pass-switch
Vertical N-channel DMOS pass-switch for robustness

Applications
The NCP1090, NCP1091, and NCP1092 are suitable for applications in industrial and security markets, complementing ON Semiconductor's ASSP portfolio in industrial devices. They can be combined with stepper motor drivers, CAN bus drivers, and other high-voltage interfacing devices to provide complete solutions.