Power-over-Ethernet (PoE) Interface Controllers

Analog Devices’ power over Ethernet (PoE) products encompass a wide variety of power sourcing equipment (PSE) and powered device (PD) controllers that support multiple power levels: IEEE PoE (13W, 802.3af), IEEE PoE+ (25.5W, 802.3at), IEEE PoE++ (71.3W, 802.3bt), and ADI LTPoE++ (90W) standard. Our PSE and PD controllers provide complete PoE solutions and use external components such as power MOSFETs and sense resistors to lower resistance in the power path—minimizing heat dissipation and maximizing power efficiency. In addition, our robust cable discharge protection scheme, a high abs max rating on all analog pins, wide operating temperature, and overtemperature protection all make for extremely rugged PoE solutions that meet IEC61000 cable discharge requirements that far exceed ESD and cable ESD testing levels.

Power-over-Ethernet (PoE) Interface Controllers

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SortOrderPart#Power Device Features# of ChannelsPoE TypeMax Power
(typ)
(W)
IEEE-Compliant DetectionIEEE-Compliant ClassificationIEEE-Compliant DisconnectionPrice (1000+)
($ US)
1LT4293 PD 1 1, 2, 3, 4, LTPoE++ 90 Yes (Internal 25k resistor) Five Event, Four Event, One Event, Three Event, Two Event N/A $1.75 (LT4293IDD#PBF)
2LTC4291-1 PSE 4 1, 2, 3, 4 71 4-Point Five Event, Four Event, One Event, Three Event, Two Event DC $2.00 (LTC4291IUF-1#PBF)
3LTC4292 PSE 4 1, 2, 3, 4 71 4-Point Five Event, Four Event, One Event, Three Event, Two Event DC $6.00 (LTC4292IUJ#PBF)
4LTC4291 PSE 4 1, 2, 3, 4 71 4-Point Five Event, Four Event, One Event, Three Event, Two Event DC $2.00 (LTC4291IUF#PBF)
5LT4294 PD 1 1, 2, 3, 4 71 Yes (Internal 25k resistor) Five Event, Four Event, One Event, Three Event, Two Event N/A $1.55 (LT4294IDD#PBF)
6LTC4279 PSE 1 1, 2, LTPoE++ 123 4-Point LTPoE++, One Event, Two Event DC $3.45 (LTC4279IS#PBF)
7LT4295 PD 1 1, 2, 3, 4 71 Yes (Internal 25k resistor) Five Event, Four Event, One Event, Three Event, Two Event N/A $2.19 (LT4295IUFD#PBF)
8LT4276 PD 1 1, 2, LTPoE++ 90 Yes (Internal 25k resistor) One Event, Two Event N/A $1.65 (LT4276CIUFD#PBF)
9LTC4290 & LTC4271 PSE 8 1, 2, LTPoE++ 90 4-Point LTPoE++, One Event, Two Event DC $7.00 (LTC4290CIUJ#PBF)
10LT4275 PD 1 1, 2, LTPoE++ 90 Yes (Internal 25k resistor) One Event, Two Event N/A $0.95 (LT4275CIDD#PBF)
11LTC4271 PSE 12 1, 2, LTPoE++ 90 4-Point LTPoE++, One Event, Two Event DC $3.00 (LTC4271IUF#PBF)
12LTC4270 & LTC4271 PSE 12 1, 2, LTPoE++ 90 4-Point LTPoE++, One Event, Two Event DC $9.00 (LTC4270CIUKG#PBF)
13LTC4274 PSE 1 2 25.5 4-Point One Event, Two Event DC $4.50 (LTC4274CUHF#PBF)
14LTC4278 PD 1 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A $2.30 (LTC4278CDKD#PBF)
15LTC4269-2 PD 1 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A $2.30 (LTC4269CDKD-2#PBF)
16LTC4269-1Reference Circuit Available PD 1 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A $2.10 (LTC4269CDKD-1#PBF)
17LTC4266 PSE 4 2 25.5 4-Point One Event, Two Event DC $5.00 (LTC4266CGW#PBF)
18LTC4265 PD 1 2 25.5 Yes (Internal 25k resistor) One Event, Two Event N/A $1.30 (LTC4265CDE#PBF)
19LTC4267-3 PD 1 1 13 Yes (Internal 25k resistor) One Event N/A $1.67 (LTC4267CGN-3#PBF)
20LTC4263-1 PSE 1- 30 2-Point One Event DC or AC $2.95 (LTC4263CDE-1#PBF)
21LTC4263 PSE 1 1 12.95 2-Point One Event DC or AC $2.95 (LTC4263CDE#PBF)
22LTC4267-1 PD 1 1 13 Yes (Internal 25k resistor) One Event N/A $1.67 (LTC4267CGN-1#PBF)
23LTC4267 PD 1 1 13 Yes (Internal 25k resistor) One Event N/A $1.67 (LTC4267CGN#PBF)
24LTC4257-1 PD 1 1 13 Yes (Internal 25k resistor) One Event N/A $0.99 (LTC4257CS8-1#PBF)
25LTC4257 PD 1 1 13 Yes (Internal 25k resistor) One Event N/A $0.92 (LTC4257CS8#PBF)