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LTC4278IDKD#TRPBF 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.Flyback Controller– Isolated Power Supply Efficiency >92%– 88% Efficiency Including Diode Bridge andHot Swap™ FETClass Current
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.
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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 |
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.IC POE CNTRL 1 CHANNEL 32DFN
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