DC1366B PoE Power Sourcing Equipment (PSE) by Analog Devices

PoE Power Sourcing Equipment (PSE)
Status: Production
Series: LTC4266
RoHS: Compliant
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The LTC4266 is a quad PSE controller designed for use in IEEE 802.3 Type 1 and Type 2 (high power) compliant Power over Ethernet systems. External power MOSFETs enhance system reliability and minimize channel resistance, cutting power dissipation and eliminating the need for heatsinks even at Type 2 power levels. External power components also allow use at very high power levels while remaining otherwise compatible with the IEEE standard. 80V-rated port pins provide robust protection against external faults.The LTC4266 includes advanced power management features, including current and voltage readback and programmable ICUT and ILIM thresholds. Available C libraries simplify power-management software development; an optional AUTO pin mode provides fully IEEE-compliant standalone operation with no software required. Proprietary 4-point PD detection circuitry minimizes false PD detection while supporting legacy phone operation. Midspan operation is supported with built-in 2-event classification and backoff timing. Host communication is via a 1MHz I2C serial interface.The LTC4266 is available in a 5mm × 7mm QFN package that significantly reduces board space compared with competing solutions. A legacy-compatible 36-pin SSOP package is also available.

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Features

Four Independent PSE Channels
Compliant with IEEE 802.3at Type 1 and 2
0.34Ω Total Channel Resistance
130mW/Port at 600mA
Advanced Power Management
8-Bit Programmable Current Limit (ILIM)
7-Bit Programmable Overload Currents (ICUT)
Fast Shutdown of Preselected Ports
14.5-Bit Port Current/Voltage Monitoring
2-Event Classification
Very High Reliability 4-Point PD Detection
2-Point Forced Voltage
2-Point Forced Current
High Capacitance Legacy Device Detection
LTC4259A-1 and LTC4258 Pin and SW Compatible
1MHz I2C Compatible Serial Control Interface
Midspan Backoff Timer
Supports Proprietary Power Levels Above 25W
Available in 38-Pin 5mm × 7mm QFN and 36-Pin SSOP Packages

Last 6 months Inventory & Pricing History

Alternative Descriptions

LTC4266 Demonstration Circuit | Richardson RFPD

DC1366B Development Boards & Evaluation Kits by Linear Technology

DEMO BOARD IEEE 802.3AT POE

Education Maker & Hobbyist Electronics>Development Boards & Evaluation Kits>Power Management Development Kits
Status: Unknown
Series: -
RoHS: Unknown
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Demonstration circuit DC1366B features the LTC®4266, a quad network power controller with I2C® interface, designed for use in IEEE 802.3at compliant Power Sourcing Equipment (PSE). Integrated into a tiny 5mm × 7mm 38-pin QFN package are four independent channels controlling external N-channel power MOSFETs. Each port features: n Reliable 4-Point PD Detection n Selectable 1 or 2-Event Classification n Inrush Current Limiting n n Extremely Fast Short-Circuit Protection with Programmable Foldback Current Threshold Programmable Cutoff Current Threshold for Class Power Enforcement n Voltage and Current Readback n DC Disconnect Sensing The DC1366B is configured like a midspan PSE with two RJ45 connectors for each port such that gigabit Ethernet data can pass through the board at full line rates while DC power is injected by the LTC4266 on the OUT TO PD side of the board. Often one of the most challenging aspects of designing a PSE system is the power management software; Linear Technology makes the job easier with the fully-featured LTC4266 register set and a QuikEval™ GUI software application. The GUI allows the user full and easy access to the LTC4266 register set with detailed contextual help info. LTC4266 example software is available only under a nondisclosure agreement (NDA). The DC1366B has increased surge protection and more compact Hot Swap™ MOSFETs over the DC1366A.

Features

Specifications

Silicon Manufacturer Linear Technology
Silicon Core Number LTC4266
Kit Application Type Power Management
Application Sub Type Power Over Ethernet (POE) PSE Controller
Kit Contents Demo Board LTC4266
Product Range -
SVHC No SVHC (07-Jul-2017)
Features IEEE 802.3at Quad PSE Controller 4Point PD Detection Four RJ45 Port 50V-57V/Optional 3.3V Supply

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC1366B?

Additional datasheets, footprints and schematics for DC1366B are listed on our Part Details page. You can also find images and similar parts to DC1366B on this page.

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What category does DC1366B fall under?

The DC1366B is listed under PoE Power Sourcing Equipment (PSE).

Can I view similar or alternative parts?

You can view similar parts to DC1366B when available in the PoE Power Sourcing Equipment (PSE) range under the specifications section at the bottom of the details page.

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Is the DC1366B RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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