Analog Devices Inc.

48-Port IEEE802.3bt (PoE 2) PSE Digital Controller Features: Fully Compliant IEEE 802.3bt Type 3 and 4 PSE Fully Compliant IEEE 802.3at Type 2 PSE Software-Compatible with LTC4291-1/LTC4292 Up to 48 PSE Ports with One Power Channel per Port Up to 24 PSE Ports with Two Power Channels per Port ECC-Protected eFlash and Data RAMs Low Power Path Dissipation per Channel 100mΩ Sense Resistance 30mΩ or Lower MOSFET RDS(ON) Chipset Provides Electrical Isolation Eliminates Optos and Isolated 3.3V Supply Very High Reliability Multipoint PD Detection Connection Check Distinguishes Single-Signature and Dual-Signature PDs Continuous Per-Port Power and Current Monitoring 1MHz I2C Compatible Serial Control Interface Pin or I2C Programmable PD Power Available in 24-Lead 4mm × 4mm (LTC91011) and a 64-Lead 7mm × 11mm (LTC9102/LTC9103) QFN Packages

$1,476.60