PoE 受电设备 (PD)

Analog Devices 的受电设备 (PD) 控制器可支持多种以太网供电功率级别:IEEE PoE (13 W)、IEEE PoE+ (25.5 W)、IEEE PoE++ (71 W) 和 ADI LTPoE++ (高达 90 W) 标准。PD 控制器主要负责为供电设备 (PSE) 提供正确的特征和分级,以使 PSE 通过以太网电缆向 PD 输送正确的功率量。我们的某些 PD 控制器集成了高效率 DC-DC 转换器以简化设计,而我们其他的 PD 控制器则为设计人员提供了选择其自有 DC-DC 转换器的能力,可帮助设计人员实现独特的性价比要求。
产品选型表

PoE Powered Device (PD)

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SortOrderPart## of ChannelsPoE TypeTopologyMax Power
(typ)
(W)
IEEE-Compliant ClassificationIEEE-Compliant DetectionCommentsUS Price 1000 to 4999
($ US)
1LT4294 1 1, 2, 3, 4- 71 Five Event, Four Event, One Event, Three Event, Two Event Yes (Internal 25k resistor) IEEE 802.3bt PD Interface Controller $1.95 (LT4294IDD#PBF)
2LT4295 1 1, 2, 3, 4 Flyback, Forward 71 Five Event, Four Event, One Event, Three Event, Two Event Yes (Internal 25k resistor) IEEE 802.3bt PD Interface with Forward/Flyback Controller $2.75 (LT4295IUFD#PBF)
3LT4276 1 1, 2, LTPoE++ Flyback, Forward 90 One Event, Two Event Yes (Internal 25k resistor) LTPoE++/PoE+/PoE PD Forward/Flyback Controller $2.25 (LT4276CIUFD#PBF)
4LT4275 1 1, 2, LTPoE++- 90 One Event, Two Event Yes (Internal 25k resistor) LTPoE++/PoE+/PoE PD Controller $1.45 (LT4275CIDD#PBF)
5LTC4278 1 2 Flyback 25.5 One Event, Two Event Yes (Internal 25k resistor) IEEE 802.3at PD with Synchronous No-Opto Flyback Controller and 12V Aux Support $2.60 (LTC4278CDKD#PBF)
6LTC4269-2 1 2 Forward 25.5 One Event, Two Event Yes (Internal 25k resistor) IEEE 802.3at High Power PD and Sychronous Forward Controller with AUX Support $2.60 (LTC4269CDKD-2#PBF)
7LTC4269-1 1 2 Flyback 25.5 One Event, Two Event Yes (Internal 25k resistor) IEE 802.3at PD with Synchronous No-Opto Flyback Controller $2.40 (LTC4269CDKD-1#PBF)
8LTC4265 1 2- 25.5 One Event, Two Event Yes (Internal 25k resistor) IEEE 802.3 at High Power PD Interface Controller with 2-Event Classification Recognition $1.80 (LTC4265CDE#PBF)
9LTC4267-3 1 1 Flyback 13 One Event Yes (Internal 25k resistor) Power over Ethernet IEEE 802.3af PD Interface with Integrated 300kHz Switching Regulator $2.10 (LTC4267CGN-3#PBF)
10LTC4267-1 1 1 Flyback 13 One Event Yes (Internal 25k resistor) Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator $2.10 (LTC4267CGN-1#PBF)
11LTC4267 1 1 Flyback 13 One Event Yes (Internal 25k resistor) Power over Ethernet IEEE 802.3af PD Interface with Integrated Switching Regulator $2.10 (LTC4267CGN#PBF)
12LTC4257-1 1 1- 13 One Event Yes (Internal 25k resistor) 100V, 400mA internal FET, dual current limit for legacy applications $1.75 (LTC4257CS8-1#PBF)
13LTC4257 1 1- 13 One Event Yes (Internal 25k resistor) 100V, 400mA internal FET $1.65 (LTC4257CS8#PBF)