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Analog Devices LT4276 | Demoboard DC2262A-A
LT4276, LT4321 PoE with Synchronous Forward and Ideal Diode Bridge
Details
| Topologie | Eintaktflusswandler |
| Eingangsspannung | 37-57 V |
| Ausgang 1 | 5 V / 13 A |
| IC-Revision | A |
Beschreibung
Demonstration circuit 2262 is a PoE Powered Device (PD) with a synchronous forward isolated power supply featuring the LT®4276 and an ideal diode bridge controller (LT4321).The LT4276 provides IEEE802.3af (PoE, Type 1), IEEE802.3at (PoE+, Type 2), and LTPoE++ PD interfacing and power supply control. When the PD is connected to a PSE, the LT4276 turns on an external, low-resistance, high-power N-channel Hot Swap™ FET. The LT4276 controls a high-power, small-sized power supply that utilizes a highly efficient, synchronously rectified, active clamp forward topology. The LT4321 provides further efficiency improvement by minimizing bridge losses.
Weiterführende Informationen
Artikeldaten
| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L (µH) | IRP,40K (A) | ISAT1 (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Version | Vin | VOut1 (V) | IOut1 (A) | Vaux (V) | n | Bauform | IR 1 (A) | L1 (mH) | RDC1 max. (Ω) | VR (V (AC)) | VT (V (DC)) | Material | L (mm) | W (mm) | H (mm) | Montageart | Muster | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744314490 | SPEC | 8 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-HCI SMT-Hochstrominduktivität | 4.9 | 8.3 | 2.2 | 6.5 | 14.5 | 56 | SMT | – | – | – | – | – | 7050 | – | – | – | – | – | Superflux | 7 | 6.9 | 4.8 | SMT | ||
 | 750313095 | SPEC | – | 9 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-PoE++ Power over Ethernet Plus Plus Transformer | 175 | – | – | – | – | – | Forward | 40 - 57 V (DC) | 5 | 17 | 10.75 | 3.5:1:2.25 | EFD20 | – | – | – | – | 2400 | – | 23.11 | 29.08 | 11.43 | SMT | |
 | 7446632002 | SPEC | 9 Dateien | Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. | WE-LF SMT Stromkompensierte Netzdrossel in SMT | 2200 | – | – | – | – | – | SMT | – | – | – | – | – | SH | 2.75 | 2.2 | 0.1 | 250 | 1500 | MnZn | 23.3 | 18.5 | 11.5 | – |
| Muster |
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| Artikel Nr. | Datenblatt | Simulation | Downloads | Status | Produktserie | L (µH) | IRP,40K (A) | ISAT1 (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Version | Vin | VOut1 (V) | IOut1 (A) | Vaux (V) | n | Bauform | IR 1 (A) | L1 (mH) | RDC1 max. (Ω) | VR (V (AC)) | VT (V (DC)) | Material | L (mm) | W (mm) | H (mm) | Montageart | Muster |
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