LTPoE++/PoE+/PoE PD Controller Features: IEEE 802.3af/at and LTPoE++™ Powered Device (PD) Controller LTPoE++ Supports Power Levels Up to 90W LT4275A Supports All of the Following Standards: LTPoE++ 38.7W, 52.7W, 70W and 90W IEEE 802.3at 25.5W Compliant IEEE 802.3af Up to 13W Compliant LT4275B is IEEE 802.3at/af Compliant LT4275C is IEEE 802.3af Compliant 100V Absolute Maximum Input Voltage Wide Junction Temperature Range (–40°C to 125°C) Overtemperature Protection Integrated Signature Resistor External Hot Swap™ N-Channel MOSFET for Lowest Power Dissipation and Highest System Efficiency Programmable Aux Power Support as Low as 9V Optional Support of Non-Standard Low Voltage PoE Available in 10-Lead MSOP and 3mm × 3mm DFN Packages

LTPoE++/IEEE 802.3bt PD Interface Controller Features: LTPoE++®/IEEE 802.3bt Powered Device (PD) Controller Supports Up to 90W PDs Distinguishes Between LTPoE++ and IEEE 802.3bt PSEs 5-Event Classification Sensing Superior Surge Protection (100V Absolute Maximum) Wide Junction Temperature Range (–40°C to 125°C) Overtemperature Protection Integrated Signature Resistor External Hot Swap N-Channel MOSFET for Lowest Power Dissipation and Highest System Efficiency Configurable Aux Power Support as Low as 9V Pin Compatible with LT4275A/B/C and LT4294 Available in 10-Lead MSOP and 3mm × 3mm DFN Packages

IEEE 802.3bt PD Interface with Forward/Flyback Controller Features: IEEE 802.3af/at/bt Powered Device (PD) with Forward/Flyback Controller Supports Up to 71.3W PDs 5-Event Classification Sensing Superior Surge Protection (100V Absolute Maximum) Wide Junction Temperature Range (–40°C to 125°C) >94% End-to-End Efficiency with LT4321 Ideal Bridge External Hot Swap N-Channel MOSFET for Lowest Power Dissipation and Highest System Efficiency No-Opto Flyback Operation Auxiliary Power Support as Low as 9V Easy Migration of LTPoE++® PDs to IEEE 802.3bt PDs Pin Compatible with LT4276A/B/C 28-Lead 4mm × 5mm QFN Package

USB PERIPHERAL 8K EPROM, 7C65640A; USB Standard:USB 2.0; Supply Voltage Min:3.15V; Supply Voltage Max:3.45V; Interface Case Style:QFN; No. of Pins:56Pins; Data Rate:-; No. of Ports:4 Port; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; MSL:-; SVHC:No SVHC (17-Dec-2015); Clock Frequency:24MHz; IC Generic Number:7C65640A; Logic Function Number:7C65640A; No. of I/O's:11I/O's; No. of Ports:4Ports; Operating Temperature Range:-40°C to +85°C; Termination Type:Surface Mount Device; USB Type:Hub

Secondary-Side Synchronous Rectifier Driver Features:Works with DCM and BCM/CrCM Conduction Mode Flyback TopologiesVCC: 4.5V to 40VSupports Up to 150V MOSFETs26ns Turn-Off Propagation DelayAccurate Minimum On and Off Timers for Reliable OperationAdjustable and Accurate Trip Point: +5mV to –30mV1Ω Gate Driver Pull-DownSOT-23 5-Lead Package

Network Controller & Processor ICs 5V 8.192MHz

1-, 2-, 6- and 8-Channel, 10-Bit Serial I/O Data Acquisition Systems Features: Programmable Features Unipolar/Bipolar Conversions Differential/Single-Ended Multiplexer Configurations Sample-and-Holds Single Supply 5V, 10V or ±5V Operation Direct 3- or 4-Wire Interface to Most MPU Serial Ports and All MPU Parallel I/O Ports Analog Inputs Common Mode to Supply Rails Resolution: 10 Bits Total Unadjusted Error (A Grade): ±1LSB Over Temp Fast Conversion Time: 20µs Low Supply Current LTC1091: 3.5mA Max, 1.5mA Typ LTC1092/LTC1093/LTC1094: 2.5mA Max, 1mA Typ

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