英飞凌为AI数据中心提供先进的高能效电源解决方案

英飞凌为AI数据中心提供先进的高能效电源解决方案

Aug2024

Tableofcontents

1

AIServerPSUTrend&Requirements

3

2

InfineonCoolGaNTMPowersNext-GenerationAIServerSMPS

9

3ReferenceDesigns17

4Keytakeaways20

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.2

Tableofcontents

1

AIServerPSUTrend&

Requirements3

2

InfineonCoolGaNTMPowersNext-GenerationAIServerSMPS

7

3

ReferenceDesigns

16

4

Keytakeaways

18

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.3

AIsystemsdemandhigherpowerthatfurtherincreasessemiconductorcontent

x86andARM-basedprocessorelectricitydemand

[Watt]

AIGPU/

2.000

TPU

1.500

1.000

500

ServerCPUs

0

200820102012201420162018202020222024202620282030Releasedate

Source:Companyinformation;Infineonanalysis

1CAGR2023-2027inInfineonrelevantmarket

2Incl.AIinference

AITrainingGPU/TPU

UnitCAGR1>40%

Avg.BOMCAGR1>10%

OtherServers

UnitCAGR1,26%BOMCAGR1,2<10%

SemiconductorSAMCAGR1

>50%

~15%

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.4

PowerevolutionforAIServerPSUandRack-PowerandDensity

Gen1~2024

ORv3-HPRPSU5.5kW48W/in3

ORv3PSU3kW32W/in3

1ormorePowershelves

50V

ITshelf

Batteryshelf

73.5*40*520mm

Rackpower

73.5*40*640mm

1shelf5+1

15kW

2shelves11+1

33kW

Gen1/2~2025

1-phAIPSU~8kW62W/in3

73.5*40*720mm

Rackpower

Rackpower

1shelf5+1

40kW

2shelves11+1

88kW

3shelves17+1

136kW

….

….

8shelves47+1

376kW

1shelf5+1

27.5kW

2shelves11+1

60.5kW

3shelves17+1

93.5kW

3-phAIPSU~22kW85W/in3

147*40*720mm

Gen3~2026/7

1shelf2+1

40kW

2shelves5+1

110kW

3shelves8+1

176kW

….

….

6shelves17+1

374kW

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.5

Rackpower

PSU

6BBUs/shelf

400V-480V3Φ

HyperscaleRack

50VBusbar

——

BBU48V

w/

Chrg/Dchrg

(CPU,GPU)

POL

50V-

12V

POL

12V-1V

230-277VAC

6PSUs/shelf

PSUBBU

-GPUdrawshighpeakpowerandhighloadtransientLLCstagemustdeliver

-HigherLLCswitchingfrequencyneededtoincreasethecontrolloopbandwidth

CoolGaNTMareenablersforhighswitchingfrequency

AIdemandsPSUhigherpeakpowerandtransientdynamics

500μs500μs

190%Load

160%Load

130%Load

100%Load

10%Load

5ms

A/μs

50ms

2.5

1000ms

-EDPP=ElectricalDataPeakProcess

500μs

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.6

SpecofEDPPloadforAC/DCAIpower

PeakpowerspecsaccordingtoGPUspec

ORv3-HPR

50ms

400μs

136%

160%

Tableofcontents

1

AIServerPSUTrend&Requireme

nts

3

2

InfineonCoolGaNTMPowersNext-GenerationAIServerSMPS

7

3

ReferenceDesigns

16

4

Keytakeaways

18

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.7

SummaryofTechnologyComparison:Sivs.SiCvs.GaN

Device

V(BR)DSS[V]

RDS(on)*Eoss

RDS(on)*Qg

RDS(on)*Qoss

RDS(on)*Qrr

CoolMOS™C7

600

100%

100%

100%

100%

CoolGaN™

600

84%

6%

13%

0%

CoolSiC™

650

133%

41%

21%

2%

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.8

HardswitchingSoftswitchingHardswitching

ApproachingtheNakajimalimitforswitchinglosses:CoolMOS™vsCoolGaN™

50

Esum,hardEoff

40

Switchingloss[µJ]

30

20

10

Eoss

0

051015202530

Loadcurrent[A]

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.9

Qoss&trueZeroQrrarethekeybenefitsofGaNHEMTs

-VerylinearCosscharacteristicwithfactor10lowerRon*Qoss

-ZeroQrrenablesCCMoperationinhalf-bridgebasedcircuits

-Deviceconceptenablesmonolithicintegrationofadditionalfunctionsandbi-directionalswitches

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.10

WhileSiSJprevailsatlowswitchingfrequencies,SiCandGaNwillconquernoveltopologiesandthehigh-frequencyspace

,Zeroreverserecoverycharge,Ultra-lowgatecharge

,Integratedpowerstages

,Availableinvoltageclasses

100V/200Vand650V

Bestoptionforhigh-densityandhigh-frequency

applications

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.11

CoolGaNmSGHEMT

Bestoptionforhigh-densityandhigh-frequency

applications

,Zeroreverserecoverycharge,LowestQossandgatecharge,Morecomplexdriving

,600Vrated

CoolGaNmGITHEMT

,Lowreverserecoverycharge

,LowtemperaturedependenceofRDS(on)

,Easydriving,400Vto2kVrating

BestoptionforCCMtotem-polePFCandhigh-powerautomotiveapplications

CoolSiCm

Infineon’s3powertechnologiesoffersflexibleandhybridapproachforAIServerSMPSPFCandDCDCtopologies

PFC

Mainstream(today)

CCMTotemPole

SiCGaNSi

-η=~99%

-Lowsystemcost

DC-DC

LLC

GaNSiCSi

Si

-η=~98.5%

-FullresonantlessEMI

-Fullsoftswitchinghighestefficiency

-Half/FullBridge/

Interleavedscalable

Indevelopment(future)

Si

InterleavedTCMTotemPole3-LTotemPole

GaNSi

400V

SiC

-η=~99.2%

-Lowsystemcost

-η=~99.2%

-Lowsystemcost

3-phaseLLC

Si

GaNSiC

-η=~98.5%

-Naturalcurrentsharing

HighfrequencyLLCfsw>300kHz

GaN

Si

GaN

-η=~98.5%

-Highestdensity

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.12

PSUBlockDiagram

PSUBlockDiagram

Gen1/2AIPSU:1-ph277Vacor347Vactoextendpowerto5.5kWand8kW

Si

SiC

Si

oSiCforCCMTPPFC,GaNforLLC

GaN

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.13

SchematicofPowerTopology

Si

GaN

Si

GaN

oGaNforTCMTPPFC,GaNforLLC

SchematicofPowerTopology

Gen3AIPSU:3-Ph480Vacarchitectureand380Vdistributionfor22kW

PSUBlockDiagram

PSUonpowershelfBusconverteronserverboard

Bus

bar380V

3-phVienna22kW

480VacL-L

4x5.5kWFBLLC3x7.7kW3-LLLC

FBLLC

1.8kWx12

sets

430V

N

48V

N430V

2x

430V

2x

430V

ViennaPFC+

FBLLC

GaN

BDS

380V

GaN

GaN

SiC

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.14

oSiCorGaNBDSforCCMTPPFC,GaNforLLCoSiCforB6PFC,andLLCpri,GaNforLLCsec.

SchematicofPowerTopology

PSUBlockDiagram

PSUonpowershelfBusconverteronserverboard

48V

ThreePhase

B6

22kW

FBLLC2x11kW

FBLLC

1.8kWx12

sets

3

80V

●

860V

N

GaN

380V

B6SiC860VSiC

SchematicofPowerTopology

DDPAK

QDPAK

TOLT

DSO-20

SMDtop-sidecooling

-Optimalthermalperformance

-OptimalloopinductanceandPCBdesign

TO-247

THD–ThroughHoleDevice

-Robustthermalperformance

-Highpackageinductance

Infineonindustrializestop-sidecoolingwiththemostrobustroadmapinthemarketEnablerforhighpoweranddensity

ThinPAK

8x8/5x6

D2PAK

TOLL

DSO-20BS

SMDBottom-sidecooling

-Mediumthermalperformance

-Lowpackageinductance

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.15

Tableofcontents

1

AIServerPSUTrend&Requireme

nts

3

2

InfineonCoolGaNTMPowersNext-GenerationAIServerSMPS

7

3

ReferenceDesigns

16

4

Keytakeaways

18

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.16

Technicaldetails

Inputvoltagerange

180VAC~275VAC

Outputvoltage

50VDCnominal

Outputpowermax

8000W

Efficiency

~98%

Powerfactor(load>10%)

PF>0.98,20%80%loadiTHD<10%,20%80%load

@180~275VAC

TemperatureAmbient

0。Cto40。C

40mm

73.5mm

Features

ReferenceBoard8kWPSU

ShowcasingCoolMOS™andCoolSiC™andCoolGaN™

446mm

-38%

ORv3Specs.

73.5x720x40mm

REF_8KW_HFHD_PSU

LearnMore

Infineoncomponents

8xIGT65R025D2,8xIMT65R040M2H,4xIMT65R010M2H,4xIPT60R016CM8,

2xIPT60R050G7,2xIDL12G65C5,1xIPT60R022S7,60xIQE03xN08LM6,

10xISC018N08NM6

1EDB8275F,1EDN8511B,2EDB9259Y,1EDN8550B

BAT46WJ,BAT165,BSS138N

ICE2QR2280G,

TLS4120D0EPV33,4DIR1400H

Controller

XMC4200

Benefits

,FullIFXBOMcontentincludingCoolMOSTM,CoolSiCTM,CoolGaNTMandOptiMOSTM,Novelintegratedplanarmagneticconstruction

,Hold-uptimeextension

,Fulldigitalcontrol(PFCandDCDC)

,InterleavedTotem-PolePFC+Full-BridgeGaNLLC

,Target98%peakefficiency

,Powerdensity100W/in³(-38%volumevsORv3specification),Holduptimeextensioncircuitfor20ms@100%Load

,400kHzLLCswitchingfrequencyenabledwithGaN

,Basedon2xREF_3K3W_HDHF_PSUreferenceboard

Aug2024restrictedCopyright©InfineonTechnologiesAG2024.Allrightsreserved.17

Tableofcontents

1

AIServerPSUTrend&Requireme

nts

3

2

InfineonCoolGaNTMPowersNext-Gener