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See Technical Specifications

LT4321HUF#PBF

PoE Ideal Diode Bridge Controller

Manufacturer:

Analog Devices, Inc
Mfr.Part #:

LT4321HUF#PBF
Datasheet:

LT4321HUF#PBF Datasheet (PDF)
packingQty:

Tube,91
packingOption:

Tube
tempRange:

-40 to 125C
Series:

LT4321
EDA/CAD Models:

Request Free CAD Models for LT4321HUF#PBF

Email: [email protected]

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Tel: +852 95804164

LT4321HUF#PBF General Description

The LT4321 is a dual ideal diode bridge controller that enables a Power over Ethernet (PoE) powered device (PD) to receive power in either voltage polarity from RJ-45 data pairs, spare pairs, or both. The LT4321 and eight N-channel MOSFETs replace the eight diodes in a passive PoE rectifier bridge. The LT4321 eases thermal design and increases delivered power.

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Key Features

Reduces Heat, Eliminates Thermal Design Problems
Maximizes Power Efficiency
Less than 800μA Quiescent Operating Current
Fully Compatible with IEEE 802.3 Detection and Classification
IEEE 802.3 Compliant When Paired with a Powered Device (PD) Controller
Works with 2-Pair and 4-Pair PoE Applications
Compatible with PoE, PoE+, and LTPoE++^™
100V Absolute Maximum Voltage
H-Grade Version Operates Up to 125°C
16-Lead 4mm × 4mm QFN Package

Application

PoE/PoE+/ LTPoE++ Powered Devices
DC Polarity Correction and Ideal Diode-ORing of Telecom Supplies

Specifications

model	LT4321HUF#PBF	packingQty	Tube,91
packingOption	Tube	lifeCycle	production
tempRange	-40 to 125C	Product Category	Power Management Specialized - PMIC
Series	LT4321	Type	Ideal Diode Controller
Mounting Style	SMD/SMT	Output Current	-
Input Voltage Range	20 V to 80 V	Output Voltage Range	7.7 V to 11 V
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 125 C
Input Current	500 uA	Input Voltage, Max	80 V
Input Voltage, Min	20 V	Maximum Output Voltage	11 V
Operating Supply Current	500 uA	Operating Supply Voltage	20 V to 80 V
Product	PMICs	Product Type	Power Management Specialized - PMIC
Factory Pack Quantity	91	Subcategory	PMIC - Power Management ICs
Unit Weight	0.007725 oz