SERVER POWER
Data centers, installed thousands of servers, to deliver more power in very dense network farms. Large scale data centers consume enormous amount of energy. As energy cost increase, there is a strong demand to increase system efficiency. Server power supplies target EU’s 80 Plus ‘Titanium’ efficiency for 2023 to reduce energy consumption ,operating cost and CO2 emission.
Topology Trend
PFC : Boost PFC → Dual-Boost Bridgeless PFC → Totem-pole PFC
DC-DC : Phase-shift full-bridge → LLC resonant converter
| Output Power | 300 W ~ 3 kW |
|---|---|
| Input / Output Voltage | 90~264VAC / 12~48VDC |
| Switching Freq. | PFC : 60 ~ 100 kHz, DC-DC : > 100kHz |
| System Requirement |
High System Efficiency – 80Plus Design Simplification High Power Density BOM Saving |
Device Solution
| System Block | Topology | Product Category | PMS Solution |
|---|---|---|---|
| PFC | Boost CCM / Interleaved PFC | 600/650V SJ MOSFETs | 600/650V e MOS |
| 650V SiC Diodes | 650V e SiC Diode | ||
| CCM Totem-pole PFC | 650V SiC MOSFETs | 650V e SiC MOSFET | |
| HV DC-DC (Primary) |
ZVS PSFB, HB / FB LLC | 600/650V SJ MOSFETs | 600/650V e MOS |
| 650V SiC MOSFETs | 650V e SiC MOSFET | ||
| HV DC-DC (Secondary) |
Synchronous Rectification | 60~150V MV MOSFETs | 60~150V e MOS |
| Interleaved CCM PFC - Recommended Products | ||
|---|---|---|
| e MOS E7 | PMW60N099E7 *PML60N105E7 PMP60N180E7 |
600V / 99mΩ, TO-247 600V / 105mΩ, PQFN88 600V / 180mΩ, TO-220 |
| e SiC Diode | PCH65S06D1Q PCH65S08D1Q |
650V / 6A, TO-220 2L 650V / 8A, TO-220 2L |
| LLC or ZVS PSFB - Recommended Products | ||
|---|---|---|
| e MOS F7 | *PMW60N075F7 *PMW60N105F7 |
600V / 75mΩ, TO-247 600V / 105mΩ, TO-247 |
| Synchronous Rectification - Recommended Products | ||
|---|---|---|
| 60V e MOS | *PSS06N1P2(L)G1 *PSS06N1P8LG1 *PSS06N2P5LG1 |
60V / 1.2mΩ, PQFN56 60V / 1.8mΩ, PQFN56 60V / 2.5mΩ, PQFN56 |
| Totem-Pole PFC - Recommended Products | ||
|---|---|---|
| e SiC MOSFET (FAST Leg) |
*PCZ65N27M1 *PCZ65N48M1 |
650V / 27mΩ, TO-247-4L 650V / 48mΩ, TO-247-4L |
| e MOS E7/F7 (SLOW Leg) |
PMW60N028E7 PMW60N040E7 *PMW60N030F7 *PMW60N043F7 *PMW65N043F7 |
600V / 28mΩ, TO-247 600V / 40mΩ, TO-247 600V / 43mΩ, TO-247 600V / 30mΩ, TO-247 650V / 43mΩ, TO-247 |
| LLC or ZVS PSFB - Recommended Products | ||
|---|---|---|
| e SiC MOSFET | *PCZ65N27M1 *PCZ65N48M1 *PCZ65N72M1 |
650V / 27mΩ, TO-247-4L 650V / 48mΩ, TO-247-4L 650V / 72mΩ, TO-247-4L |
| e MOS F7 | *PMW60N030F7 *PMW60N043F7 *PMW65N043F7 *PMW60N075F7 |
600V / 30mΩ, TO-247 600V / 43mΩ, TO-247 650V / 43mΩ, TO-247 600V / 75mΩ, TO-247 |
| Synchronous Rectification - Recommended Products | ||
|---|---|---|
| 60V e MOS | *PSS06N1P2(L)G1 *PSS06N1P8LG1 *PSS06N2P5LG1 |
60V / 1.2mΩ, PQFN56 60V / 1.8mΩ, PQFN56 60V / 2.5mΩ, PQFN56 |
