Description
The LTC®4274A is a single Power Sourcing Equipment (PSE) controller capable of delivering up to 90W of LTPoE++ power to a compatible LTPoE++ Powered Device (PD).
Features
- nn Compliant with IEEE 802.3at Type 1 and 2 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 High Capacitance Legacy Device Detection nn 1MHz I2C Compatible Serial Control Interface nn Midspan Backoff Timer nn Supports 2-Pair and 4-Pair Output Power nn Available in Multiple Power Grades nn LTC4274A-1: LTPoE++™ 38.7W nn LTC4274A-2: LTPoE++ 52.7W nn LTC4274A-3: LTPoE++ 70W nn LTC4274A.