The LT®4276 is a pin-for-pin compatible family of IEEE 802.3 and LTPoE++ 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 powe.
n IEEE802.3af/at and LTPoE++™ 90W Powered Device (PD) with Forward/Flyback Controller
n LT4276A Supports All of the Following Standards: n LTPoE++ 38.7W, 52.7W, 70W and 90W n IEEE 802.3at 25.5W Compliant n IEEE 802.3af up to 13W Compliant
n LT4276B is IEEE 802.3at/af Compliant n LT4276C is IEEE 802.3af Compliant n Superior Surge Protection (100V Absolute Maximum) n Wide Junction Temperature Range (
–40°C to 125°C) n Auxiliary Power Support as Low as 9V n No Opto-Isolator Required for Flyback Operation n External Hot Swap™ N-Channel MOSFET for Lowest
Power Dissipation and Highest Sys.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LT4275 |
Linear |
PD Controller | |
2 | LT421 |
LED Technology |
LED | |
3 | LT4220 |
Linear Technology |
Dual Supply Hot Swap Controller | |
4 | LT423 |
LED Technology |
LED | |
5 | LT424 |
LED Technology |
LED | |
6 | LT4250H |
Linear Technology |
Negative 48V Hot Swap Controller | |
7 | LT4250L |
Linear Technology |
Negative 48V Hot Swap Controller | |
8 | LT4254 |
Linear Technology |
Positive High Voltage Hot Swap Controller with Open-Circuit Detect | |
9 | LT4256-1 |
Linear Technology |
(LT4256-1/-2) Positive High Voltage Hot Swap Controllers | |
10 | LT4256-2 |
Linear Technology |
(LT4256-1/-2) Positive High Voltage Hot Swap Controllers | |
11 | LT4256-3 |
Linear Technology |
Positive High Voltage Hot Swap Controller | |
12 | LT4294 |
Linear Technology |
IEEE 802.3bt PD Interface Controller |