This evaluation board shows how to design the half-bridge LLC stage of a server SMPS with the target to meet 80+ Titanium standard efficiency requirements. For this purpose, the following technologies has been used: 600V CoolMOS™ C7 SJ MOSFET (IPP60R180C7) on the primary side and OptiMOS™ 40V low voltage power MOSFET in SuperSO8 (BSC010N04LS) in the synchronous rectification secondary stage, in combination with QR CoolSET™ (ICE2QR2280Z), EiceDRIVER™ 2EDL hi-low side driver (2EDL05N06PF), EiceDRIVER™ 2EDN low side gate driver (2EDN7524F) and an LLC controller (ICE2HS01G) for the analog or XMC™ microcontroller (XMC4200) in the digital version.

Output voltage: 12V

Output current: 50A

Peak efficiency @ 50% load > 97,4%

Efficiency @ 10% load > 95%

Parametrics EVAL_600W_12V_LLC_C7
Applications Server ; PC Power
Board Type Evaluation Board
Dimensions 220 x 75 x 60mm
Frequency min max 132 kHz 155 kHz
Input Type DC
Interfaces x
Mounting SMD, THD
Output Current min max 0 A 50 A
Output Voltage min max 12 V 11.8 V 12.2 V
Pout min max 0 W 600 W
Product Description 600W DCDC/LLC stage, 400V/12V DC, 97.8% peak efficiency
Qualification Industrial
Sub Application Server ; PC Power
Supply Voltage min max 350 V 410 V
Target Application Power Supplies
Topology Half Bridge ; LLC