·Compatible with 802.3af Specifications
·Support 13W PoE Power Application
·100V, 0.48Ω Integrated Pass Switch
·Inrush Current Limit of 120mA Maximum
·Current Limit During Normal Operation Between 400mA and 600mA
·Current Limit and Foldback
·Simplified Wall Adapter Interface
·Integrated 160V Switching Power MOSFET
·Supports Primary-Side Regulated Flyback without Opto-Coupler Feedback
·Supports Low-side Switch Buck Converter
·Up to 3A Programmable Switching Current Limit
·OLP, OVP, OTP and Open-Circuit Protection
·Minimal External Components
·QFN 4mmx5mm-28 Package
The TMI7326B is an integrated IEEE 802.3af compatible PoE Poweredꦐ Device with PD interface ꧅ and power converter. It is targe🥂ted for isolated or♚ non-isolated 13W PoE application. The PD provide a complete interfไace for a powered device (PD) to✅ compl꧃y with the IEEE® 802.3af/at standard in a power-over-⛎Ethernet (PoE) system. The 𒊎PD with a detection signature, classification signat♍ure, and an integrated isolation powe🌳r switch with inr𓂃ush current control. During the inrush🐼 period, the PD limit the currꦗent to less than 120mA before switching to the higher current limit (400mA to &n💝bsp;600mA) when🌳 the isolation power MOSFET is fully enhanced. The devic𒉰✨es feature an input UVLO with wide hysteresis and long deglitch time to compensate for twisted-pair cable res💯istive drop and to assure glitch-free transition dur🌠ing power-on/-off cond🍬itions. The PD can withsta😼nd up to 100V at the i༺nput. The devices detect the presence of a wall adapter power-so𓃲urce con♑nection and allow a smooth switchover from the PoE 🤪power source to the wal🦹l power adapter. The intelligent MPS function enables applications requiring ♊very low power standby modes. TMI7326B features protection inclꦦuding over current protection, over v꧋olt🌳age protection, open circuit protection and thermal shut down. T🏅he TMI7326B can support a front-end solution ﷽for PoE-PD application with minimum external component, it is available in QFN-2𓆏8 (4mmX5mm) package.