Analog Devices LTC4279IUFD Power Over Ethernet (PoE) Controllers
Power Over Ethernet Controller 1 Channel 802.3at (PoE+), 802.3af (PoE), LTPoE++ 20-QFN (4x5)

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LTC4279IUFD
Detailed Description
IC POE CNTRL 1 CHANNEL 20QFN
Package
20-WFQFN Exposed Pad
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
LTC4279IUFD Datasheet
Quick Jump:
Technical Specifications
Analog Devices LTC4279IUFD Power Over Ethernet (PoE) Controllers technical specifications.
General
Number of Channels
1
Package / Case
20-WFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
45V ~ 57V
Lifecycle Status
Obsolete
Current Supply
1.7mA
Type
Controller (PSE)
Power Max
90 W
Internal Switch S
No
Alternate Parts Comparison (LTC4279IUFD vs LTC4279IUFD#TRPBF vs LTC4279IUFD#PBF vs MAX5988BETP+T)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad | 20-WFQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Supply Voltage | 45V ~ 57V | 45V ~ 57V | 45V ~ 57V | 8.8V ~ 60V |
| Number of Channels | 1 | 1 | 1 | 1 |
| Auxiliary Sense | No | No | No | Yes |
| Current Supply | 1.7mA | 1.7mA | 1.7mA | 3.3mA |
| Internal Switch S | No | No | No | Yes |
| Power Max | 90 W | 90 W | 90 W | 6.49 W |
| Standards | 802.3at (PoE+), 802.3af (PoE), LTPoE++ | 802.3at (PoE+), 802.3af (PoE), LTPoE++ | 802.3at (PoE+), 802.3af (PoE), LTPoE++ | 802.3af (PoE) |
| Type | Controller (PSE) | Controller (PSE) | Controller (PSE) | Controller (PD), DC/DC |
| Action |
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