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Distributed Power Supply for Server

Overview

PC servers and commercial servers both utilize distributed power supplies. The power supplies for large servers consist of three main sections; a block that converts external AC into DC, a block that boosts the power efficiency, and a POL block. The POL converts the DC (12 V, 24 V, or 48 V) distributed to each PCB to the voltage required by each individual circuit block in the system.

Renesas meets the requirements of customers developing distributed power supplies by offering an extensive lineup of products including PFC devices; devices for use in insulated switching power supplies, PWM control devices, power MOSFET devices, and IGBTs.

System Block Diagram

■For Insulated DC/DC Power Supply (Brick Converter Example)

Recommended Products

Block Semiconductor device Recommended products Features, etc.
PFC PFC IC R2A20104/114 Continuous conduction, interleaving
R2A20112A Critical conduction, interleaving
R2A20131 * Continuous conduction, single, improving efficiency at light-load
R2A20132 Critical conduction, interleaving; improving efficiency at light-load
PFC, DC/DC SJ MOSFET RJK60S5DPK-MO 600V/20A 150mΩtyp.
RJK60S8DPK-MO 600V/55A 45mΩtyp.
SiC-SBD RJS6004TDPN-EJ 600V/10A VF=1.5Vtyp.,trr=15ns
RJS6005TDPN-EJ 600V/15A VF=1.5Vtyp.,trr=16ns
Si-FRD RJU60C Series 600V VF=1.2Vtyp.,trr=50ns
RJU605 * Series 600V VF=2.5Vtyp.,trr=25ns
FET RJK5020DPK 500 V/40A 115mΩ
RJK6015DPK 600 V/21A 360mΩ
PWM＋Synchronous rectifier PWM＋Synchronous rectifier IC R2A20121/124A Synchronous rectification phase shift full bridge control
VRM,
DC/DC converter
Syncronous rectifier		 FET Bus converter
Vin=36 to 75 V
Vout=12 V		 Pout=120
to 240 W		 RJK0654DPB Secondary for full (half)
bridge: 60 V
RJK0854DPB Secondary for full (half)
bridge: 80 V
RJK1055DPB Primary for full (half)
bridge: 100 V
RJK1056DPB Primary for full (half)
bridge: 100 V
Pout=300
to 700 W 		RJK0656DPB Secondary for full
bridge: 60 V
RJK0856DPB Secondary for full
bridge: 80 V
RJK1056DPB Primary for full
bridge: 100 V
Isolated converter
Vin=38 to 55 V
Vout=3.3 V, 5 V		 Pout=30
to 90 W		 RJK0454DPB Secondary for forward active clamp: 40 V
RJK1557DPA Primary for forward active clamp: 150 V
Pout=100
to 200 W		 RJK0455DPB Secondary for half
bridge: 40 V
RJK0456DPB Secondary for half
bridge: 40 V
RJK0856DPB Primary for half
bridge: 80 V
PA converter
Vin=36 to 75 V
Vout=28 V		 Pout=300
to 500 W		 RJK1055DPB Secondary for full
bridge: 100 V
RJK1056DPB Primary for full
bridge: 100 V
RJK1056DPB Secondary for full
bridge: 100 V
PWM control IC HA16150 Vcc: 20 V, Push-pull/single-end output switching
Feedback circuit
for output voltage		 Photocoupler (standard) PS2381-1 NEW High isolation voltage(5kVr.m.s.), 4p-LSOP, Ta=115℃
PS2561D Series High isolation voltage(5kVr.m.s.)、4p-DIP, Ta=110℃
PS2761B Series High isolation voltage(3.75kVr.m.s.)、4p-SOP, Ta=110℃
PS2861B Series High isolation voltage(2.5kVr.m.s.)、4p-SSOP, Ta=110℃
POL POL-Sip(Integrated Power Device)
*Control IC + MOSFETs		 R2J20702NP QFN56(8x8mm)
R2J20751NP QFN40(6x6mm)

* = Under development

Related Application Notes/Sample Code

Title Document No.
R2A20104/114 Series Application Note * -
R2A20112A Application Note * -
R2A20131 Application Note * -
R2A20132 Application Note * -
R2A20124A Application Note * -

*: Please contact your sales representative or contact us directly.


Related Boards

Name Part No.
R2A20104/114 Evaluation Board * -
R2A20112A Evaluation Board * -
R2A20131 Evaluation Board * -
R2A20132 Evaluation Board * -
R2A20124A Evaluation Board * -

*: Please contact your sales representative or contact us directly.

 

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Power MOSFET
Simulation Site

Technical Information WEB Magazine RENESAS EDGE

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