REFD5044, Low-EMI, Active-Clamped Forward, Class 4 Powered Device (PD) Provides High-Efficiency Solution for PoE Applications
Progetto di riferimento usando la parte MAX5974A di Analog Devices
Immagine
1 / 6
Per prodotti finali
- PoE Applications
Per contattare il Servizio Clienti.
- REFD5044, Reference design is for a highly efficient and low-EMI active-clamped forward, 5V powered device (PD). The design features the MAX5969B as its controller. The design also uses the MAX5974A, which controls current-mode PWM converters and provides inductive feedback, zero-voltage switching (ZVS), and frequency foldback to reduce cost and enhance supply efficiency for PoE applications. Using these devices, this reference design is IEEE 802.3af/at compliant, and is a high-performance, compact, and cost-efficient solution for a Class 4 PD. The design can also support the auxiliary input voltage to provide maximum 25W output power
Funzioni principali
-
Conversion TypeDC to DC
-
Input Voltage42 to 57 V
-
Output Voltage5 V
-
Output Current4.8 A
-
Output Power25 W
-
Efficiency92.2 %
-
TopologyForward- Active Clamp
Parti in primo piano (3)
| Numero parte | Produttore | Tipo | Per contattare il Servizio Clienti. | |||
|---|---|---|---|---|---|---|
|
MAX5969BETB+T | Analog Devices | Interface Controllers | Powered Device Interface Controller 10-Pin TDFN EP T/R | AGGIORNA | |
|
|
MAX5969BETB+ | Analog Devices | Interface Controllers | Powered Device Interface Controller 10-Pin TDFN EP T/R | AGGIORNA | |
|
MAX5974AETE+T | Analog Devices | PWM and Resonant Controllers | Current Mode PWM Controller 1A 100kHz to 600kHz 16-Pin TQFN EP T/R | AGGIORNA | |