ADI LT4276CIUFD#TRPBF
| Manufacturer | |
| MPN | LT4276CIUFD#TRPBF |
| LCSC Part # | C672430 |
| Packaging | QFN-28-EP(4x5) |
| Customer # | |
| Key Attributes | LTPoE++/PoE+/PoE PD Forward/Flyback Controller |
| Datasheet |  ADI LT4276CIUFD#TRPBF |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | ADI | |
| Packaging | QFN-28-EP(4x5) | |
| Ethernet Speed Standards | - | |
| Features | - | |
| Type | - | |
| Operating Temperature | -40℃~+85℃ | |
| number of channels | - | |
| Voltage - Supply | 7.2V~8V | |
| MAC Interface | - |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The is a pin-for-pin compatible family of IEEE 802.3 and LTP0E++ Powered Device (PD) controllers. It includes an isolated switching regulator controller capable of synchronous operation in both forward and flyback topologies with auxiliary power support. The LT4276A employs the LTPoE++ classification scheme, receiving 38.7W, 52.7W, 70W or 90W of power at the PD RJ45 connector, and is backwards compatible with IEEE 802.3. The LT4276B is a fully 802.3at compliant, 25.5W Type 2 (P0E+) PD. The LT4276C is a fully 802.3af compliant, 13W Type 1 (PoE) PD. The LT4276 supports both forward and flyback power supply topologies, configurable for a wide range of PoE applications. The flyback topology supports No-Opto feedback. Auxiliary input voltage can be accurately sensed with just a resistor divider connected to the AUX pin. The LT4276 utilizes an external, low RDS(ON) N-channel MOSFET for the Hot Swap function, maximizing power delivery and efficiency, reducing heat dissipation, and easing the thermal design.
Features
- IEEE802.3af/at and LTPoE++ 90W Powered Device (PD) with Forward/Flyback Controller
- LT4276A Supports All of the Following Standards: LTPoE++ 38.7W, 52.7W, 70W and 90W, IEEE 802.3at 25.5W Compliant, IEEE 802.3af up to 13W Compliant
- LT4276B is IEEE 802.3at/af Compliant
- LT4276C is IEEE 802.3af Compliant
- Superior Surge Protection (100V Absolute Maximum)
- Wide Junction Temperature Range (-40℃ to 125℃)
- Auxiliary Power Support as Low as 9V
- No Opto-Isolator Required for Flyback Operation
- External Hot Swap N-Channel MOSFET for Lowest Power Dissipation and Highest System Efficiency >94%
- End-to-End Efficiency with LT4321 Ideal Bridge
- Available in a 28-Lead 4mm × 5mm QFN Package
Applications
- High Power Wireless Data Systems
- Outdoor Security Camera Equipment
- Commercial and Public Information Displays
- High Temperature Applications
| Qty | Unit Price | Total Amount |
|---|---|---|
| 1+ | $ 4.7882 | $ 4.79 |
| 10+ | $ 4.6759 | $ 46.76 |
| 30+ | $ 4.6011 | $ 138.03 |
| 100+ | $ 4.5262 | $ 452.62 |
Standard Packaging2500/Full Reel | ||
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers | |
| Manufacturer | ADI | |
| Packaging | QFN-28-EP(4x5) | |
| Ethernet Speed Standards | - | |
| Features | - | |
| Type | - | |
| Operating Temperature | -40℃~+85℃ | |
| number of channels | - | |
| Voltage - Supply | 7.2V~8V | |
| MAC Interface | - |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2500 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
The is a pin-for-pin compatible family of IEEE 802.3 and LTP0E++ Powered Device (PD) controllers. It includes an isolated switching regulator controller capable of synchronous operation in both forward and flyback topologies with auxiliary power support. The LT4276A employs the LTPoE++ classification scheme, receiving 38.7W, 52.7W, 70W or 90W of power at the PD RJ45 connector, and is backwards compatible with IEEE 802.3. The LT4276B is a fully 802.3at compliant, 25.5W Type 2 (P0E+) PD. The LT4276C is a fully 802.3af compliant, 13W Type 1 (PoE) PD. The LT4276 supports both forward and flyback power supply topologies, configurable for a wide range of PoE applications. The flyback topology supports No-Opto feedback. Auxiliary input voltage can be accurately sensed with just a resistor divider connected to the AUX pin. The LT4276 utilizes an external, low RDS(ON) N-channel MOSFET for the Hot Swap function, maximizing power delivery and efficiency, reducing heat dissipation, and easing the thermal design.
Features
- IEEE802.3af/at and LTPoE++ 90W Powered Device (PD) with Forward/Flyback Controller
- LT4276A Supports All of the Following Standards: LTPoE++ 38.7W, 52.7W, 70W and 90W, IEEE 802.3at 25.5W Compliant, IEEE 802.3af up to 13W Compliant
- LT4276B is IEEE 802.3at/af Compliant
- LT4276C is IEEE 802.3af Compliant
- Superior Surge Protection (100V Absolute Maximum)
- Wide Junction Temperature Range (-40℃ to 125℃)
- Auxiliary Power Support as Low as 9V
- No Opto-Isolator Required for Flyback Operation
- External Hot Swap N-Channel MOSFET for Lowest Power Dissipation and Highest System Efficiency >94%
- End-to-End Efficiency with LT4321 Ideal Bridge
- Available in a 28-Lead 4mm × 5mm QFN Package
Applications
- High Power Wireless Data Systems
- Outdoor Security Camera Equipment
- Commercial and Public Information Displays
- High Temperature Applications
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |