Description
The LTC®4291-1/LTC4292 chipset is a 4-port power sourcing equipment (PSE) controller designed for use in IEEE 802.3bt Type 3 and 4 compliant Power over Ethernet (PoE) systems.
Features
- nn Four PSE Ports nn Two Power Channels per Port
nn Fully Compliant IEEE 802.3bt Type 3 and 4 PSE nn Compliant Support for Type 1, 2, 3, and 4 PDs
nn Low Power Path Dissipation per Channel nn 150mΩ Sense Resistance nn 30mΩ or Lower MOSFET RDS(ON)
nn Chipset Provides Electrical Isolation nn Eliminates Optos and Isolated 3.3V Supply
nn Very High Reliability Multipoint PD Detection nn Connection Check Distinguishes SingleSignature and Dual-Signature PDs
nn Continuous, Dedicated Per-Port Power and C.
LTC4291-1-AnalogDevices.pdf
