| Parameters |
| Factory Lead Time |
8 Weeks |
| Lifecycle Status |
PRODUCTION (Last Updated: 2 weeks ago) |
| Package / Case |
32-WFDFN Exposed Pad |
| Surface Mount |
YES |
| Number of Pins |
32 |
| Operating Temperature |
0°C~70°C |
| Packaging |
Tube |
| Published |
2011 |
| 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 |
| Peak Reflow Temperature (Cel) |
260 |
| Number of Functions |
1 |
| Terminal Pitch |
0.4mm |
| Frequency |
100kHz |
| Time@Peak Reflow Temperature-Max (s) |
30 |
| Base Part Number |
LTC4278 |
| Pin Count |
32 |
| Input Voltage-Nom |
14V |
| Number of Channels |
1 |
| Nominal Supply Current |
1.35mA |
| Power - Max |
25.5W |
| Current - Supply |
1.35mA Max |
| Control Mode |
CURRENT-MODE |
| Control Technique |
PULSE WIDTH MODULATION |
| Nominal Input Voltage |
60V |
| Switcher Configuration |
SINGLE |
| Internal Switch(s) |
Yes |
| Standards |
802.3at (PoE+), 802.3af (PoE) |
| Height Seated (Max) |
0.8mm |
| Length |
7mm |
| Width |
4mm |
| Radiation Hardening |
No |
| REACH SVHC |
No SVHC |
| RoHS Status |
ROHS3 Compliant |
LTC4278CDKD#PBF Overview
As part of Tube, PoE controller is embedded.Packaged according to 32-WFDFN Exposed Pad.Controller (PD), DC/DC is the type of PoE controller.There is an increase in the number of channels strong/weak as follows: 1.Keeping its operating temperature at 0°C~70°C ensures PoE reliability.This electrical Po E controller operates at voltage 37.2V~60V.The base part number LTC4278 determines the Po E controllers.In a 32 termination, a transmission line is terminated with an impedance-matched power over ethernet controller.As far as the maximum power of this electrical ethernet over power controller is concerned, it is 25.5W Watts.There is a pin count of 32 on this ethernet over power controller.There is a supply current of 1.35mA Max in the system.There is a Po E controller like this in Switching Regulator or Controllers.A 32-pin design is used in it.There is a 260 thermal peak of this electrical ethernet power controller (Cel).100kHz frequencies are used by this electrical PoE ethernet controller.
LTC4278CDKD#PBF Features
Tube package
32 pin count
32 pins
LTC4278CDKD#PBF Applications
There are a lot of Linear Technology/Analog Devices LTC4278CDKD#PBF Power Over Ethernet (PoE) Controllers applications.
- Single-Port PSE Power Injectors
- Dual Signature PD/Forced UPOE
- Commercial Information Displays
- WLAN Access Points
- Pico-base Stations
- Single-Port PSE End-Point Applications
- Public Information Displays
- Power over Ethernet
- High power (>12.95 W) powered devices
- Midspan Applications