LTC4266CGW#PBF PoE Power Sourcing Equipment (PSE) by Analog Devices

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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Prices starting from US$9.08

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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

Power Over Ethernet 25.5W Automotive 36-Pin SSOP W | Richardson RFPD


LTC4266CGW#PBF Semiconductors - ICs by Linear Technology

IC QUAD POE CONTROLLER 3.3V 36SSOP

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

Input Voltage 57V
Output Current -
UVLO 25V
Controller IC Case Style SSOP
No. of Pins 36Pins
Duty Cycle (%) 6.3%
Frequency 1MHz
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Operating Temperature Range 0°C to +70°C
Supply Current -2.4mA

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LTC4266CGW#PBF?

Additional datasheets, footprints and schematics for LTC4266CGW#PBF are listed on our Part Details page. You can also find images and similar parts to LTC4266CGW#PBF on this page.

What pricing and inventory information can I view?

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What category does LTC4266CGW#PBF fall under?

The LTC4266CGW#PBF is listed under PoE Power Sourcing Equipment (PSE).

Can I view similar or alternative parts?

You can view similar parts to LTC4266CGW#PBF 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 LTC4266CGW#PBF RoHS compliant?

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

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Authorised distributors including Richardson RFPD have stock available or on a lead time for LTC4266CGW#PBF.

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