Ag9724-FL
Overview
The Ag9724-FL is an isolated Power over Ethernet (PoE) module designed to extract power from a conventional twisted-pair Category 5 Ethernet cable. It provides a regulated 24V output at up to 500mA (12W) while maintaining 1500V isolation between the input and output to protect sensitive downstream electronics. This module is IEEE 802.3af compliant and includes built-in signatures for PD detection and classification.
Why Choose This Part
The module offers a small footprint in a Single-In-Line (SIL) package, saving significant PCB area compared to discrete PoE designs. It includes integrated short-circuit, thermal, and over-current protection, and the output voltage can be adjusted with a simple external resistor to compensate for line losses.
Applications
Key Specifications
Getting Started
To integrate this module, connect the input pins to a bridge rectifier fed by the Ethernet transformer center taps. Engineers should ensure adequate copper area on the PCB for thermal dissipation, as the module can operate up to 85 degrees Celsius. Follow the Silvertel recommended layout for the classification resistor to ensure the PSE correctly identifies the 12W power requirement.
