Specification	LM5071MTX-80/NOPB

Auxiliary Sense	True
Current - Supply	1 mA
Internal Switch(s)	Both
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Package / Case	16-TSSOP
Package / Case [x]	0.173 in
Package / Case [y]	4.4 mm
Power - Max [Max]	12.95 W
Standards	802.3af (PoE)
Supplier Device Package	16-TSSOP
Type	Controller (PD), DC/DC
Voltage - Supply [Max]	60 V
Voltage - Supply [Min]	1.8 V

LM5071 Series

Class 3 PoE PD with flyback DC-DC controller & 12V-57V Adapter Priority

Part	Type	Standards	Number of Channels	Mounting Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Power - Max [Max]	Internal Switch(s)	Package / Case [x]	Package / Case	Package / Case [y]	Supplier Device Package	Regulator Topology	Voltage - Input [Min]	Voltage - Input [Max]	Utilized IC / Part	Board Type	Supplied Contents	Voltage - Output	Frequency - Switching	Power - Output	Main Purpose	Outputs and Type	Outputs and Type	Current - Output
Texas Instruments LM5071MTX-50/NOPB	Controller (PD) DC/DC	802.3af (PoE)	1	Surface Mount	60 V	1.8 V	1 mA	125 °C	-40 °C	12.95 W	Both	0.173 in	16-TSSOP	4.4 mm	16-TSSOP
Texas Instruments LM5071EVAL/NOPB																Flyback	38 V	60 V	LM5071	Fully Populated	Board(s)	3.3 V	250 kHz	10.89 W	Power Over Ethernet Special Purpose DC/DC	Isolated	1	3.3 A
Texas Instruments LM5071MT-80/NOPB	Controller (PD) DC/DC	802.3af (PoE)	1	Surface Mount	60 V	1.8 V	1 mA	125 °C	-40 °C	12.95 W	Both	0.173 in	16-TSSOP	4.4 mm	16-TSSOP
Texas Instruments LM5071MTX-80/NOPB	Controller (PD) DC/DC	802.3af (PoE)	1	Surface Mount	60 V	1.8 V	1 mA	125 °C	-40 °C	12.95 W	Both	0.173 in	16-TSSOP	4.4 mm	16-TSSOP
Texas Instruments LM5071MT-50/NOPB	Controller (PD) DC/DC	802.3af (PoE)	1	Surface Mount	60 V	1.8 V	1 mA	125 °C	-40 °C	12.95 W	Both	0.173 in	16-TSSOP	4.4 mm	16-TSSOP

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.25
		10	$ 2.92
		25	$ 2.76
		100	$ 2.39
		250	$ 2.27
		500	$ 2.04
		1000	$ 1.72
	Digi-Reel®	1	$ 3.25
		10	$ 2.92
		25	$ 2.76
		100	$ 2.39
		250	$ 2.27
		500	$ 2.04
		1000	$ 1.72
	Tape & Reel (TR)	2500	$ 1.63
		5000	$ 1.57
Texas Instruments	LARGE T&R	1	$ 2.52
		100	$ 2.20
		250	$ 1.54
		1000	$ 1.25

Description

General part information

LM5071 Series

The LM5071 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution for Powered Devices (PD) that connect into Power over Ethernet (PoE) systems.The LM5071 is specifically designed for the PD that must accept power from auxiliary sources such as AC adapters. The auxiliary power interface of the LM5071 activates the PWM controller when the ac adapter is connected to power the PD when PoE network power is unavailable. The LM5071 integrates an 80V, 400mA line connection switch and associated control for a fully IEEE 802.3af compliant interface with a full featured current mode pulse width modulator dc-dc converter. All power sequencing requirements between the controller interface and switch mode power supply (SMPS) are integrated into the IC.

Documents

Technical documentation and resources

LM5071 Power Over Ethernet PD Controller with Auxiliary Power Interface datasheet (Rev. E)

Data sheet