LTC4278IDKD#TRPBF

LTC4278IDKD#TRPBF

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LTC4278IDKD#TRPBF
IC POE CNTRL 1 CHANNEL 32DFN
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$0.01

Quantity Available: 3935
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Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.

LTC4278IDKD#TRPBF FEATURES

Flyback Controller– Isolated Power Supply Efficiency >92%– 88% Efficiency Including Diode Bridge andHot Swap™ FETClass Current

LTC4278IDKD#TRPBF DESCRIPTION

The LTC®4278 is an integrated Powered Device (PD) con-troller and switching regulator intended for high powerIEEE 802.3at and 802.3af applications. With a wide inputvoltage range, the LTC4278 is specifically designed to sup-port PD applications that include a low-voltage auxiliarypower input such as a 12V wall adaptor. The inclusion ofa shutdown pin provides simple implementation of bothPoE and auxiliary dominate applications. In addition, theLTC4278 supports both 1-event and 2-event classificationsas defined by the IEEE, thereby allowing the use in a widerange of product configurations.The LTC4278 synchronous, current mode, flyback control-ler generates multiple supply rails in a single conversionstep providing for the highest system efficiency while main-taining tight regulation across all outputs. The LTC4278includes Linear Technology’s patented No-Opto feedbacktopology to provide full IEEE 802.3 isolation without theneed of an opto-isolator circuit. A true soft-start functionallows graceful ramp-up of all output voltages.The LTC4278 is available in a space saving 32-lead DFNpackage.

LTC4278IDKD#TRPBF APPLICATIONS

Product Attributes

TYPE DESCRIPTION Select all
Auxiliary Sense Yes
Number of Channels 1
Type Controller (PD), DC/DC
Supplier Device Package 32-DFN (7x4)
Product Status Active
Package / Case 32-WFDFN Exposed Pad
Package Tape & Reel (TR)
Mounting Type Surface Mount
Series -
Operating Temperature -40°C ~ 85°C
Current - Supply 1.35mA (Max)
Voltage - Supply 37.2V ~ 60V
Standards 802.3at (PoE+), 802.3af (PoE)
Internal Switch(s) Yes
Power - Max 25.5 W

$0.01

Quantity Available: 3935
SZC Quality Assurance
Analog Devices Inc.

Analog Devices Inc.

Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.

View All Product from Analog Devices Inc.
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years