Parameters |
Factory Lead Time |
1 Week |
Package / Case |
38-WFQFN Exposed Pad |
Surface Mount |
YES |
Operating Temperature |
-40°C~85°C |
Packaging |
Tape & Reel (TR) |
Published |
2007 |
JESD-609 Code |
e3 |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
38 |
ECCN Code |
EAR99 |
Type |
Controller (PSE) |
Terminal Finish |
Matte Tin (Sn) |
Subcategory |
Power Management Circuits |
Technology |
CMOS |
Voltage - Supply |
45V~57V |
Terminal Position |
QUAD |
Number of Functions |
1 |
Supply Voltage |
3.3V |
Terminal Pitch |
0.5mm |
Base Part Number |
LTC4274 |
Pin Count |
38 |
JESD-30 Code |
R-PQCC-N38 |
Supply Voltage-Max (Vsup) |
4.3V |
Power Supplies |
3.354V |
Supply Voltage-Min (Vsup) |
3V |
Number of Channels |
1 |
Adjustable Threshold |
YES |
Power - Max |
70W |
Current - Supply |
2.4mA |
Supply Current-Max (Isup) |
5mA |
Internal Switch(s) |
No |
Standards |
802.3at (PoE+), 802.3af (PoE), LTPoE++ |
Height Seated (Max) |
0.8mm |
Length |
7mm |
Width |
5mm |
RoHS Status |
ROHS3 Compliant |
LTC4274AIUHF-3#TRPBF Overview
It is embedded in the Tape & Reel (TR) package.It is packaged in a way that resembles 38-WFQFN Exposed Pad.I would like to inform you that this PoE controller is of the Controller (PSE) type.There is an increase in the number of channels strong/weak as follows: 1.For a reliable operation, -40°C~85°C is the PoE operating temperature.Electricity is supplied to this Po E controller by voltage 45V~57V.Base part numbers LTC4274 can be used to establish Po E controllers.In a 38 termination, the transmission line is terminated with a power over ethernet controller that matches its characteristic impedance.The maximal power of this electrical ethernet over power controller is 70W Watts.Count of 38 pins is included.The supply current amounts to 2.4mA.Po E controller Power Management Circuits includes this component.It is necessary to have a greater voltage than 3.3V in the supply.The maximum current that can be provided for its operation (Isup) is reached at 5mA.Upon reaching 4.3V for its operation, the maximal current (Vsup) required for its operation is reached.3V is reached once it receives the minimal current (Vsup) it requires to operate.From 3.354V power supplies, it operates.
LTC4274AIUHF-3#TRPBF Features
Tape & Reel (TR) package
38 pin count
3.354V power supplies
LTC4274AIUHF-3#TRPBF Applications
There are a lot of Linear Technology/Analog Devices LTC4274AIUHF-3#TRPBF Power Over Ethernet (PoE) Controllers applications.
- 4PPOE
- Non-Compliant, Application Specific Devices
- Single-Port PSE Power Injectors
- High power (>12.95 W) powered devices
- Routers
- RFID Readers
- Pico-base Stations
- Power Modules
- IEEE 802.3bt (Draft) Compliant Devices
- Dual Signature PD/Forced UPOE