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LT4295 Datasheet (PDF) - Analog Devices

LT4295 Datasheet PDF - Analog Devices
Part # LT4295
Download  LT4295 Download
File Size   2456.56 Kbytes
Page   34 Pages
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices
Description 12-/24-/48-Port IEEE 802.3 at PoE PSE Controller

LT4295 Datasheet (PDF)

Go To PDF Page Download Datasheet
LT4295 Datasheet PDF - Analog Devices

Part # LT4295
Download  LT4295 Click to download

File Size   2456.56 Kbytes
Page   34 Pages
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices
Description 12-/24-/48-Port IEEE 802.3 at PoE PSE Controller

LT4295 Datasheet (HTML) - Analog Devices


LT4295 Product details

DESCRIPTION
The LTC®9101-2A/LTC9102 chipset is a (up to) 48-port power
sourcing equipment (PSE) controller designed for use in IEEE
802.3at Type 1 and 2 compliant Power over Ethernet (PoE) systems.
The LTC9101-2A/LTC9102 is designed to power compliant
802.3af and 802.3at PDs. The LTC9101-2A/LTC9102 chipset delivers
lowest-in-industry heat dissipation using low RDS(ON) external
MOSFETs and 0.1Ω sense resistance per power channel. A transformer-
isolated communication protocol replaces expensive optocouplers
and a complex isolated 3.3V supply, resulting in significant
bill of materials (BOM) cost savings.
Advanced power management features include per-port 14‑bit current/
voltage monitoring, programmable current limits, and versatile
fast shutdown of preselected ports. PD detection uses a proprietary
multipoint detection mechanism, ensuring excellent immunity from
false PD identification. 1-event and 2-event physical classification
are supported. The LTC9101-2A/LTC9102 includes an I2C serial
interface operable up to 1MHz. The LTC9101-2A/LTC9102 is pin or
I2C programmable to negotiate PD-delivered power up to 25.5W.

FEATURES
► Fully Compliant IEEE 802.3at Type 1 and 2 PSE
► Up to 48 PSE Ports
► Industry-Standard Register Map
► +80V/–20V Tolerant Port-Facing Pins
► ECC-Protected eFlash and Data RAMs
► Low Power Path Dissipation per Channel
► 100mΩ Sense Resistance
► 30mΩ or Lower MOSFET RDS(ON)
► Chipset Provides Electrical Isolation
► Eliminates Optos and Isolated 3.3V Supply
► Very High Reliability Multipoint PD Detection
► Continuous Per-Port Voltage and Current Monitoring
► 1MHz I2C Compatible Serial Control Interface
► Pin or I2C Programmable PD Power
► Available in 24-Lead 4mm × 4mm (LTC9101‑2A) and 64-Lead
7mm × 11mm (LTC9102) QFN Packages

APPLICATIONS
► PoE PSE Switches/Routers and Midspans




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About Analog Devices


Analog Devices, Inc. (ADI) is a publicly traded company that designs, develops, and manufactures high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits (ICs).
The company was founded in 1965 and is headquartered in Norwood, Massachusetts.
ADI serves a wide range of industries, including aerospace and defense, automotive, communications, consumer, industrial, medical, and test and measurement.
The company's product portfolio includes data converters, amplifiers and comparators, power management ICs, microcontrollers, sensors, and radio frequency (RF) and microwave components, among others.
ADI is dedicated to innovation and customer satisfaction, and is committed to providing its customers with high-quality, reliable solutions to meet their needs.
With a focus on energy efficiency and sustainability, ADI is a leader in the analog and mixed-signal IC industry, driving technological advancements and providing innovative solutions to the world's most challenging problems.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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