Microsemi PD69208M+PD69200八端口PSE PoE解决方案

Microsemi公司的PD69208M是以太网供电(PoE)和HDBaseT供电(PoH)管理芯片,在单个56引脚封装内集成了电源,模拟和新型逻辑,用在以太网交换和中跨设备,允许网络设备在同一条电缆上共享电源和数据.根据IEEE802.3和HDBaseT标准以及传统/标准前PD检测,PD69208M支持标准的PD检测,加电和保护,通过过载,欠载,过压,超温和短路等机理提供PD实时保护,是工作在单独可用模式,而不需要主处理器的介入.PD69208能实现IEEE802.3at大功率(“AT”)和PoH标准所标示的所有实时功能,包括负载检测,“AF”,“AT”,和PoH分类;采用多次分类尝试(MCA). PD69208M支持32V-57V间的电源电压而无需另外的电压源,支持高达Type-3 PSE (60W). PD69208M/PD69200芯片组支持PoEPD检测,加电和保护,还能实现IEEE802.3at 和IEEE802.3bt Class 3所标示的所有实时功能.主要用在以太网供电(PoE)(所有IEEE兼容的2线模式),支持4对和IEEE802.3bt PSE Type 3,交换/路由/中跨,工业自动化和PoE LED照明.本文介绍了PD69208M主要特性,框图,典型PoE应用电路(PD69208M和PD69200),PD69200主要特性描述以及八路两对端口评估板PD-IM-7608M框图,主要特性,电路图,材料清单和PCB设计图.
Microsemi’s™ PD69208M Power over Ethernet (PoE) and Power over HDBaseT (PoH) Manager chip integrates power, analog, and state of the art Logic into a single 56-pin, plastic QFN package. The device is used in Ethernet switches and Midspans to allow network devices to share power and data over the same cable.
PD69208M device is an 8 ports, mixed-signal, high voltage PoE/PoH PSE Manager. The PD69208M supports standard PD (Powered Device) detection, power-up, and protection according to IEEE802.3 and the HDBaseT standards as well as legacy/pre-standard PD detection. The PD69208M provides PD real time protection through the following mechanisms: overload, under-load, over-voltage, over temperature, and short-circuit and enables operation in a total standalone mode, with no need for interaction by the host processor. The PD69208 executes all real time functions as specified in IEEE802.3at High Power (“AT”) and PoH standards, including load de...