Linear Technology LTC4263IDE#TRPBF

LTC4263IDE#TRPBF Description
The LTC4263IDE#TRPBF is an autonomous single-channel PSE controller for use in IEEE 802.3af compliant Power over Ethernet systems. It includes an onboard power MOSFET, internal inrush, current limit, short-circuit control, IEEE 802.3af compliant PD detection and classification circuitry, and selectable AC or DC disconnect sensing. Onboard control algorithms provide complete IEEE 802.3af-compliant operation without the need for a microcontroller. The LTC4263IDE#TRPBF simplifies PSE implementation, needing only a single 48V supply and a small number of passive support components.

LTC4263IDE#TRPBF Features
IEEE 802®.3af Compliant Operation from a Single 48V Supply Fully Autonomous Operation without Microcontroller Internal MOSFET with Thermal Protection Power Management Works Across Multiple Ports with Simple RC Network Precision Inrush Control with Internal Sense Resistor Powered Device (PD) Detection and Classification AC and DC Disconnect Sensing Robust Short-Circuit Protection Pin-Selectable Detection Backoff for Midspan PSEs Classification Dependent ICUT Current Threshold LED Driver Indicates Port On and Blinks Status Codes Available in 14-Pin SO and 4mm × 3mm DFN Packages

LTC4263IDE#TRPBF Applications
IEEE 802.3af Compliant Endpoint/Midspan PSEs Single-Port or Multi-Port Power Injectors Power Forwarders Low-Port Count PSEs Environment B PSEs Standalone PSEs