購囚簡?PoE IEEER 802?3af?at?bt 涙?宥佚 秀廏麗徭強晒 VOIP
扮寂?2019年02月04日 15:24:28 恬宀?Maxim 栖坿?嶄窮利
Maxim巷望議MAX5995A/MAX5995B/MAX5995C頁IEEE 802.3bt惹否議鹿撹阻91W寄孔楕MOSFET議工窮譜姥俊笥陣崙匂,麼勣喘壓參湊利工窮狼由(PoE).匂周戻工阻PD才殊霞炎紛,蛍窃炎紛才鹿撹議醤嗤軟強惜喊窮送陣崙議侯宣孔楕蝕購,酒晒議能癖塘匂俊笥,謹並周蛍窃0-8,100V補秘恷寄峺炎,鋒蓄庁塀才階詰孔債鋒蓄庁塀,麼勣喘壓IEEE 802.3bt工窮譜姥,VOIP窮三,IP芦畠萎孚屢字,涙?俊秘泣,弌侏児嫋才裏侏児嫋,孚苧才秀廏麗徭強晒.云猟初府阻MAX5995B麼勣單米才蒙來,崇夕, 灸侏哘喘窮揃夕參式得浩医MAX5995 EVK麼勣蒙來,窮揃夕可創賠汽才PCB譜柴夕.
The MAX5995A/MAX5995B/MAX5995C provide a complete interface for a powered device (PD) to comply with the IEEER 802.3af/at/bt standard in a Power-Over-Ethernet(PoE) system. The devices provide the PD with a detection signature, classification signature, and an integrated isolation power switch with startup inrush current control.
During the startup period, the devices limit the current to 135mA (typ) before switching to the higher current limit (1800mA to 2400mA, typ) when the isolation power MOSFET is fully enhanced. The devices feature Multi-Event classification, Intelligent MPS (MAX5995B/MAX5995C), Autoclass (MAX5995C), an input UVLO with wide hysteresis and long deglitch time to compensate for twistedpair cable resistive drop and to assure glitch-free transition during power-on/-off conditions. The devices can withstand a maximum voltage of 100V at the input...
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