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                                                                                                      1. Home
                                                                                                      2. Semiconductors - ICs
                                                                                                      3. Power Management ICs - PMIC
                                                                                                      4. Power-over-Ethernet - POE Controllers
                                                                                                      Print Page

                                                                                                      LTC9102AUKJ#PBF

                                                                                                      PSE Controller, POE, 12 Channel, 3.3 V Input, 1 MHz, 8.2 V UVLO, -40 to 85 °C, QFN-EP-64

                                                                                                      ANALOG DEVICES LTC9102AUKJ#PBF
                                                                                                      Image is for illustrative purposes only. Please refer to product description.
                                                                                                      ManufacturerANALOG DEVICES
                                                                                                      Manufacturer Part NoLTC9102AUKJ#PBF
                                                                                                      Order Code4033370
                                                                                                      Technical Datasheet

                                                                                                      Data Sheet

                                                                                                      See all Technical Docs
                                                                                                      92 In Stock

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                                                                                                      Product Information

                                                                                                      ManufacturerANALOG DEVICES
                                                                                                      Manufacturer Part NoLTC9102AUKJ#PBF
                                                                                                      Order Code4033370
                                                                                                      Technical Datasheet

                                                                                                      Data Sheet

                                                                                                      PoE StandardIEEE 802.3af, 802.3at, 802.3bt
                                                                                                      PoE Controller TypePSE Controller
                                                                                                      Input Voltage3.3V
                                                                                                      Output Current Max-
                                                                                                      UVLO8.2V
                                                                                                      IC Case / PackageQFN-EP
                                                                                                      No. of Pins64Pins
                                                                                                      No. of Channels12Channels
                                                                                                      Power Max71.3W
                                                                                                      Duty Cycle (%)6.3%
                                                                                                      Switching Frequency Max1MHz
                                                                                                      IC MountingSurface Mount
                                                                                                      Operating Temperature Min-40°C
                                                                                                      Operating Temperature Max85°C
                                                                                                      Product Range-
                                                                                                      MSLMSL 1 - Unlimited
                                                                                                      SVHCNo SVHC (21-Jan-2025)
                                                                                                      Controller IC Case StyleQFN-EP
                                                                                                      Frequency1MHz
                                                                                                      Output Current-

                                                                                                      Product Overview

                                                                                                      LTC9102 is a chipset is a 12/24-port power sourcing equipment (PSE) controller designed for use in IEEE 802.3bt Type 3 and 4 compliant power over ethernet (PoE) systems. It is designed to power compliant 802.3af, 802.3at, and 802.3bt PDs. This device's chipset delivers lowest-in-industry heat dissipation by utilizing low RDS(ON) external MOSFETs and 0.1ohm sense resistance per power channel. A transformer-isolated communication protocol replaces expensive opto-couplers and a complex isolated 3.3V supply, resulting in significant BOM cost savings. Advanced power management features include per-port 14bit current/voltage monitoring, programmable power limits, and versatile fast shut down of preselected ports. An advanced power management host software layer is available. PD detection uses a proprietary multipoint detection mechanism ensuring excellent immunity from false PD identification. It is used in application such as PoE PSE switches/routers and midspans etc.

                                                                                                      • ECC-protected eflash and data RAMs
                                                                                                      • Chipset provides electrical isolation
                                                                                                      • Eliminates optos and isolated 3.3V supply
                                                                                                      • Very high reliability multipoint PD detection
                                                                                                      • Connection check distinguishes single-signature and dual-signature PDs
                                                                                                      • Continuous per-port voltage and current monitoring
                                                                                                      • 1MHz I²C compatible serial control interface, pin or I²C programmable PD power
                                                                                                      • VDD supply current is 40mA typical at (TA = 25°C)
                                                                                                      • Operating temperature is -40°C to 85°C
                                                                                                      • Package style is 64-lead plastic QFN

                                                                                                      Notes

                                                                                                      ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

                                                                                                      Technical Specifications

                                                                                                      PoE Standard

                                                                                                      IEEE 802.3af, 802.3at, 802.3bt

                                                                                                      Input Voltage

                                                                                                      3.3V

                                                                                                      UVLO

                                                                                                      8.2V

                                                                                                      No. of Pins

                                                                                                      64Pins

                                                                                                      Power Max

                                                                                                      71.3W

                                                                                                      Switching Frequency Max

                                                                                                      1MHz

                                                                                                      Operating Temperature Min

                                                                                                      -40°C

                                                                                                      Product Range

                                                                                                      -

                                                                                                      SVHC

                                                                                                      No SVHC (21-Jan-2025)

                                                                                                      Frequency

                                                                                                      1MHz

                                                                                                      PoE Controller Type

                                                                                                      PSE Controller

                                                                                                      Output Current Max

                                                                                                      -

                                                                                                      IC Case / Package

                                                                                                      QFN-EP

                                                                                                      No. of Channels

                                                                                                      12Channels

                                                                                                      Duty Cycle (%)

                                                                                                      6.3%

                                                                                                      IC Mounting

                                                                                                      Surface Mount

                                                                                                      Operating Temperature Max

                                                                                                      85°C

                                                                                                      MSL

                                                                                                      MSL 1 - Unlimited

                                                                                                      Controller IC Case Style

                                                                                                      QFN-EP

                                                                                                      Output Current

                                                                                                      -

                                                                                                      Technical Docs (1)

                                                                                                      Technical Data Sheet EN

                                                                                                      Legislation and Environmental

                                                                                                      Country of Origin:
                                                                                                      Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                      Philippines
                                                                                                      Country in which last significant manufacturing process was carried out
                                                                                                      Tariff No:85381090
                                                                                                      US ECCN:EAR99
                                                                                                      EU ECCN:NLR
                                                                                                      RoHS Compliant:Yes

                                                                                                      RoHS

                                                                                                      RoHS Phthalates Compliant:Yes

                                                                                                      RoHS

                                                                                                      SVHC:No SVHC (21-Jan-2025)
                                                                                                      Download Product Compliance Certificate

                                                                                                      Product Compliance Certificate

                                                                                                      Weight (kg):.000001
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