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The LTC® 4266 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.
■ 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
■ High Power PSE Switches/Routers
■ High Power PSE Midspans
Attribute | Attribute Value |
---|---|
Manufacturer | Analog Devices / Linear Technology |
Product Category | Power Over Ethernet (PoE) Controllers |
Series | - |
Type | Controller (PD), DC/DC |
Packaging | Tube Alternate Packaging |
Package-Case | 32-WFDFN Exposed Pad |
Operating-Temperature | -40°C ~ 85°C |
Number-of-Channels | 1 Channel |
Voltage-Supply | 37.2 V ~ 60 V |
Supplier-Device-Package | 32-DFN (7x4) |
Current-Supply | 1.35mA (Max) |
Standards | 802.3at (PoE+), 802.3af (PoE) |
Internal-Switch-s | Yes |
Power-Max | 25.5W |
Auxiliary-Sense | Yes |
Form,Package,Functional compatible component
Descriptions
Who we are?
is a professional electronic marketing corporation entirely engaged in the fields of semi-conductors and electronic components sale and service for clients over 10 years, specialize in selling the new and unused, original factory sealed packing electronic components. specialize in IC,diode,transistor,IGBT,DC-DC converter.....***has set up our own sales service conception and has already established strong partnerships with many famous manufacturers and we have more than 5,000,000 kinds of electronic components for your choices, always at your services !
FAQ
Q: Are you trading company or manufacturer?
A: We are original manufacturer OF Integrated Circuit Chip . We can do OEM/ODM business.
Q: How long is your delivery time?
A: Group buying delivery time: 30-60 days; General delivery time: 20 days.
Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q: How to buy your products?
A: You can buy the products from our company directly.Normally the procedure is sign the contract, payment by T/T,Contact the shipping company to delivery the goods to your country.Q: What is the warranty ?
A: The free warranty is one year from the day of Commissioning qualified.If there is any fault for our products within the free warranty period, we will repair it and change the fault assembly for free