LTC4263
Overview
The LTC®4263 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, and short-circuit control, IEEE 802.3af compliant PD detection and classification circuitry, and selectable AC or DC disconnect sensing.
- 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
