U U LTC4259A Quad IEEE 802.
3af Power over Ethernet Controller with AC Disconnect FEATURES DESCRIPTIO ■ Controls Four Independent – 48V Powered Ethernet Ports ■ Each Port Includes: – IEEE 802®.
3af Compliant PD Detection and Classification – Output Current Limit with Foldback – Short-Circuit Protection with Fast Gate Pull-Down – PD Disconnect Using AC or DC Sensing – Power Good Indication ■ Operates Autonomously or Controlled by I2CTM Serial Interface ■ 4-Bit Programmable Digital Address Allows Control of Up to 64 Ports ■ Programmable INT Pin Eliminates Software Polling ■ Current and Duty Cycle Limits Protect External FETs ■ Available in a 36-UPin SSOP Package APPLICATIO S ■ IEEE 802.
3af ...

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