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

SERVER POWER SYSTEM BLOCK
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
DEVICE SOLUTION FOR SERVER POWER ( < 1.6KW)
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
* Comming soon
DEVICE SOLUTION FOR HYPERSCALE SERVER POWER ( > 1.6KW)
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
* Comming soon