NCP1082: 集成式 PoE-PD 和 DC-DC 转换器控制器,13 W,带辅助电源支持
NCP1082 属于安森美半导体的以太网供电器件 (PoE-PD) 系列产品,是一个适用于高要求以太网应用的、耐用、灵活且高度集成的方案。它在一个器件中结合了完全符合 IEEE 802.3af 规范的增强型 PoE-PD 接口和灵活的可配置 DC-DC 转换器控制器。NCP1082 的卓越功能还支持从交流电源适配器和电池供电等辅助电源供电,使得应用能够从非 PoE 网络平滑转换为 PoE 网络,因此无需辅助开关电源。安森美半导体独特的制造工艺和设计增强使得 NCP1082 能够提供最高 13 W 的调节电源,可支持符合 IEEE 802.3af 标准的 PoE 应用。该器件将具有 PoE 功能系统的明显成本优势运用于市场上的多种产品,如 VoIP 电话、无线 LAN 接入点、保安摄像头、销售点终端、RFID 读取器、工业以太网设备等。该集成式电流模式 DC-DC 控制器可实现隔离式和非隔离反激、正向和降压转换器拓扑结构。它具有一个灵活、耐用和高能效设计所需的所有功能,包括可编程开关频率、高达 80% 的占空比、斜率补偿和软启动。NCP1082 使用耐用的高电压工艺制造,将坚固的垂直 N 沟道 DMOS 与低损耗电流感应技术进行集成,适用于要求最高的环境,能够耐受热插拔和线路 ESD 事件等严苛环境。NCP1082 是通信和工业设备中安森美半导体 ASSP 产品阵容的补充,可以结合其他高电压接口设备为通信、工业和保安市场提供完整的方案。
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优势 |
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Auxiliary supply support with an input down to 9V DC.
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Eliminates the need for a second DC-DC converter to support traditional non-PoE power sources which may range down to 9 V.
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Improved robustness behavior against cable ESD. The NCP1082 reaches more then 4 kV on HBM and 3 kV for CESD.
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Protects the device against cable transients and hot swap events that can occur in harsh environments and when installed outdoors.
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Pin compatibility of the ON PoE-PD portfolio including NCP1080, NCP1081, NCP1082 and NCP1083 in a TSSOP20-EP package.
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Enables customers to easily switch from low to high power platforms with or without Vaux using the same reference design.
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应用 |
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终端产品 |
- Power over Ethernet powered devices
- Wall wart replacement
- PoE in combination with wall wart
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- VoIP phones
- WLAN access point
- IP cameras
- Industrial equipment
- Point of sale
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产品型号 :
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