Parameters |
Factory Lead Time |
1 Week |
Package / Case |
32-WFDFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~85°C |
Packaging |
Tube |
Published |
2012 |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
32 |
ECCN Code |
EAR99 |
Type |
Controller (PD), DC/DC |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Switching Regulator or Controllers |
Technology |
CMOS |
Voltage - Supply |
37.2V~60V |
Terminal Position |
DUAL |
Terminal Form |
NO LEAD |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Terminal Pitch |
0.4mm |
Time@Peak Reflow Temperature-Max (s) |
30 |
Base Part Number |
LTC4278 |
Pin Count |
32 |
JESD-30 Code |
R-PDSO-N32 |
Qualification Status |
Not Qualified |
Input Voltage-Nom |
14V |
Number of Channels |
1 |
Power - Max |
25.5W |
Current - Supply |
1.35mA Max |
Input Voltage (Min) |
4.5V |
Control Mode |
CURRENT-MODE |
Input Voltage (Max) |
20V |
Control Technique |
PULSE WIDTH MODULATION |
Switcher Configuration |
SINGLE |
Internal Switch(s) |
Yes |
Standards |
802.3at (PoE+), 802.3af (PoE) |
Height Seated (Max) |
0.8mm |
Length |
7mm |
Width |
4mm |
RoHS Status |
ROHS3 Compliant |
LTC4278IDKD#PBF Overview
The Tube package contains it.Packaged in the manner of 32-WFDFN Exposed Pad.As far as this application is concerned, it is a Controller (PD), DC/DC type PoE controller that is being used.There is an increase in the number of channels strong/weak as follows: 1.For the sake of ensuring the reliability of the Po E controller, it functions at a temperature of -40°C~85°C.This electrical Po E controller operates at voltage 37.2V~60V.The base part number LTC4278 determines the Po E controllers.It is possible to terminate a transmission line with a 32 termination by connecting a power over ethernet controller with a matching impedance to the transmission line.It is capable of producing 25.5W Watts of power at its maximum.It is equipped with 32 pin count.Current supply equals 1.35mA Max.Po E controller Switching Regulator or Controllers includes this component.There is a certain temperature that this electrical ethernet power controller reaches during reflow (Cel) of 260.As far as the input voltage of this electrical power over ethernet PoE controller is concerned, it has a maximum value of 20V.The minimal input voltage of this power over ethernet devices is 4.5V.
LTC4278IDKD#PBF Features
Tube package
32 pin count
LTC4278IDKD#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC4278IDKD#PBF Power Over Ethernet (PoE) Controllers applications.
- Switches
- IP Phone Power Management
- High power (>12.95 W) powered devices
- Pico-base Stations
- WLAN Access Points
- POS Terminals
- Lighting
- High Temperature Industrial Applications
- IEEE 802.3af Compliant PoE Powered Devices
- Public Information Displays