LTC4265CDE#PBF

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Analog Devices

IEEE 802.3 AT HIGH POWER PD INTERFACE CONTROLLER WITH 2-EVENT CLASSIFICATION RECOGNITION

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LTC4265CDE#PBF

Active

Analog Devices

IEEE 802.3 AT HIGH POWER PD INTERFACE CONTROLLER WITH 2-EVENT CLASSIFICATION RECOGNITION

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DocumentsDatasheet R413 Reliability Data

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC4265CDE#PBF

Auxiliary Sense	False
Current - Supply	1.35 mA
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Channels	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	12-WFDFN Exposed Pad
Power - Max [Max]	25.5 W
Standards	802.3at (PoE+), 802.3af (PoE)
Supplier Device Package	12-DFN (4x3)
Voltage - Supply [Max]	60 V
Voltage - Supply [Min]	37.2 V

LTC4265 Series

IEEE 802.3 at High Power PD Interface Controller with 2-Event Classification Recognition

Part	Power - Max [Max]	Mounting Type	Internal Switch(s)	Current - Supply	Package / Case	Standards	Number of Channels	Auxiliary Sense	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]
Analog Devices LTC4265CDE#TRPBF	25.5 W	Surface Mount		1.35 mA	12-WFDFN Exposed Pad	802.3af (PoE) 802.3at (PoE+)	1		12-DFN (4x3)	70 °C	0 °C	60 V	37.2 V
Analog Devices LTC4265CDE#PBF	25.5 W	Surface Mount		1.35 mA	12-WFDFN Exposed Pad	802.3af (PoE) 802.3at (PoE+)	1		12-DFN (4x3)	70 °C	0 °C	60 V	37.2 V

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 5.41
		10	$ 3.62
		25	$ 3.16
		100	$ 2.64
		250	$ 2.39
		500	$ 2.23
		1000	$ 2.10
		2500	$ 1.97
		5000	$ 1.91

Description

General part information

LTC4265 Series

The LTC4265 is a 3rd generation Powered Device (PD) Interface controller intended for IEEE 802.3at high power Power-over-Ethernet (PoE) applications up to 25.5W. By supporting 1-event and 2-event classification signaling as defined by IEEE 802.3, the LTC4265 can be used in a wide range of product configurations. A 100V MOSFET isolates the DC/DC converter during detection and classification, and provides 100mA inrush current for a smooth power-up transition. The LTC4265 also includes complementary power good outputs, an on-board signature resistor, undervoltage/overvoltage lockout and comprehensive thermal protection. All PD solutions from ADI include a shutdown pin with signature corrupt to provide flexible auxiliary power options.The LTC4265 PD interface controller can be used along with a variety of DC/DC converter products to provide a complete, cost effective power solution for high power PD applications.The LTC4265 is available in the space-saving low profile (4mm × 3mm) DFN package and is drop-in compatible with the LTC4264.Applications802.11n Access PointsHigh Power VoIP Video PhonesRFID Reader SystemsPTZ Security Cameras and Surveillance Equipment