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LTC4266C - Quad PoE/PoE+/LTPoE++ PSE Controller

Download the LTC4266C datasheet PDF. This datasheet also covers the LTC4266A variant, as both devices belong to the same quad poe/poe+/ltpoe++ pse controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The LTC®4266A is a quad power sourcing equipment (PSE) controller capable of delivering up to 90W of LTPoE++ power to a compatible LTPoE++ powered device (PD).

Key Features

  • nn Four Independent PSE Channels nn Compliant with IEEE 802.3at Type 1 and 2 nn Low Power Dissipation nn 0.25Ω Sense Resistance Per Channel nn Very High Reliability 4-Point PD Detection nn 2-Point Forced Voltage nn 2-Point Forced Current nn High Capacitance Legacy Device Detection nn 1MHz I2C Compatible Serial Control Interface nn Midspan Backoff Timer nn Supports 2-Pair and 4-Pair Output Power nn Available in Multiple Power Grades nn LTC4266A-1: LTPoE++™ 38.7W nn LTC4266A-2: LTPoE++ 52.7W nn LT.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LTC4266A-LinearTechnology.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Linear Technology (now Analog Devices)

Part Number Description
LTC4266 Quad IEEE 802.3at Power over Ethernet Controller
LTC4266A Quad PoE/PoE+/LTPoE++ PSE Controller
LTC4260 Positive High Voltage Hot Swap Controller
LTC4261 Negative Voltage Hot Swap Controllers
LTC4261-2 Negative Voltage Hot Swap Controllers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Features nn Four Independent PSE Channels nn Compliant with IEEE 802.3at Type 1 and 2 nn Low Power Dissipation nn 0.25Ω Sense Resistance Per Channel nn Very High Reliability 4-Point PD Detection nn 2-Point Forced Voltage nn 2-Point Forced Current nn High Capacitance Legacy Device Detection nn 1MHz I2C Compatible Serial Control Interface nn Midspan Backoff Timer nn Supports 2-Pair and 4-Pair Output Power nn Available in Multiple Power Grades nn LTC4266A-1: LTPoE++™ 38.7W nn LTC4266A-2: LTPoE++ 52.7W nn LTC4266A-3: LTPoE++ 70W nn LTC4266A-4: LTPoE++ 90W nn LTC4266C: PoE 13W nn Available in 38-Lead 5mm × 7mm QFN Package Applications nn LTPoE++ PSE Switches/Routers nn LTPoE++ PSE Midspans nn IEEE 802.3at Type 1 PSE Switches/Routers nn IEEE 802.