LTC4270 Datasheet | Linear Technology

Features nn 12 Independent PSE Channels nn pliant with IEEE 802.3at Type 1 and 2 nn Chipset Provides Electrical Isolation nn Reduced BOM Cost nn Eliminates up to 6 High Speed Opto-Couplers nn Eliminates Isolated 3.3V Power Supply nn Low Power Dissipation nn 0.25Ω Sense Resistance Per Channel nn Very High Reliability 4-Point PD Detection nn 2-Point Forced Voltage nn 2-Point Forced Current nn VEE and VPORT Monitoring nn 1 Second Rolling IPORT Averaging nn Supports 2-Pair and 4-Pair Output Power nn 1MHz I2C patible Serial Control Interface nn Available In Three Power Grades nn A-Grade - LTPoE++™ 38.7W to 90W nn B-Grade - PoE+ 25.5W nn C-Grade - PoE 13W nn Available In 52-Lead 7mm × 8mm...