Description

Single Port PoE/PoE+/LTPoE++ PSE Controller Features: Compliant with IEEE 802.3at Type 1 and 2 Supports LTPoE++® Up to 90W Supports Dual-Signature PDs Fully Autonomous Operation without Microcontroller Very Low Power Dissipation 0.1Ω Sense Resistance Low RDS(ON) External MOSFET Very High Reliability 4-Point PD Detection 2-Point Forced Voltage and Forced Current Robust Short-Circuit Protection Cable Surge Protected ±80V OUT pin Classification Dependent ICUT and ILIM Current Thresholds Supports 2-Pair and 4-Pair Output Power UltraPWR Mode Supports Custom PDs up to 123W Pin-Selectable Detection Backoff Timer for Midspans Pin Programmable Legacy PD Detection Pin Programmable Maximum Power Mode Status LED Pin Available in 20-Pin QFN and 16-Pin SO Packages