Power Over Ethernet (PoE) Controllers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Number of Channels	Power - Max	Internal Switch(s)	Auxiliary Sense	Standards	Voltage - Supply	Current - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
SI3400-D-GM IC POE CNTRL 1 CHANNEL 20QFN Silicon Labs	0 In Stock	60 : $4.80433 Tube	-	Tube	Discontinued at Digi-Key	Controller (PD), DC/DC	1	15 W	Yes	No	802.3af (PoE)	2.8V ~ 57V	2mA	-40°C ~ 85°C	Surface Mount	20-VQFN Exposed Pad	20-QFN (5x5)
SI3401-D-GM IC POE CNTRL 1 CHANNEL 20QFN Silicon Labs	0 In Stock	60 : $4.93683 Tube	-	Tube	Discontinued at Digi-Key	Controller (PD), DC/DC	1	15 W	Yes	No	802.3af (PoE)	2.8V ~ 57V	2mA	-40°C ~ 85°C	Surface Mount	20-VQFN Exposed Pad	20-QFN (5x5)
SI3400-GM IC POE CNTRL 1 CHANNEL 20QFN Silicon Labs	0 In Stock	Obsolete	-	Tube	Obsolete	Controller (PD), DC/DC	1	15 W	Yes	No	802.3af (PoE)	2.8V ~ 57V	2mA	-40°C ~ 85°C	Surface Mount	20-VQFN Exposed Pad	20-QFN (5x5)
SI3400-BZ-GM IC POE CNTRL 1 CHANNEL 20QFN Silicon Labs	0 In Stock	Obsolete	-	Tray	Obsolete	Controller (PD), DC/DC	1	15 W	Yes	No	802.3af (PoE)	2.8V ~ 57V	2mA	-40°C ~ 85°C	Surface Mount	20-VQFN Exposed Pad	20-QFN (5x5)

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Power over Ethernet (PoE) controllers allow designers to transmit electrical current and data over a single Ethernet connection. Remote devices are powered through Ethernet cabling, eliminating the need for batteries, local power adaptors and additional power cabling. Bridge rectifier and N+1 O-Ring are two types of PoE controllers. Available features may include N and P-channel FETs, internal switches and automotive certification.