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2Confidential and Proprietary | Littelfuse, Inc. © 2020 2
大纲
Littelfuse公司简介
中国5G建设趋势
4G/5G电源架构及选型
通讯电源保护
备用电池系统
33Confidential and Proprietary | Littelfuse, Inc. © 2020
Littelfuse: 服务全球客户超过90年
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
$531M
$1.7B
Littelfuse annual sales (2008 – 2018)Littelfuse at a glance
Global leader in circuit protection
Growing provider of leading power control and sensing
technologies
Deliver high-quality products to over 100,000 customers for
a safer, greener, increasingly connected world
Global sales in over 150 countries,
manufacturing & engineering in over 50 countries
$1.7 billion of annual sales in 2018
11,000+ dedicated and innovative employees
Founded in 1927, Headquartered in Chicago, IL, USA
44Confidential and Proprietary | Littelfuse, Inc. © 2020
电路保护 Ι 功率控制Ι 传感器件 –各个市场的方案供应商
AutomotiveBuilding
Automation
Data center
& Cloud
EV
Infrastructure
IndustrialMobile &
Wearable
Renewable
EnergyLED
Lighting
Appliances
Transpor-
tationHealthcare
Aerospace
55Confidential and Proprietary | Littelfuse, Inc. © 2020
全球客户全球服务
Manaus
Sao Paulo
Fremont
Milpitas
Long Beach
Rapid City
Saskatoon
Burlington
Mount Prospect
Lake Mills
Chicago
Champaign
Beverly
Piedras Negras
Matamoros
Muzquiz
Charneca de CaparicaSan Sebastian
Legnago
Beijing
Wuxi
Suzhou
Shanghai
Kunshan
Tsukuba
Tokyo
Seongham
Seoul
Chu-pei
Taguig
Lipa City
Taipei
Singapore
Dongguan
Hong Kong
Kaunas
Leiden
Amsterdam
Deventer
Sales
Legend
R&D
Manufacturing
Bremen
Lampertheim
Essen
Lauf
Chippenham
New Delhi
Round Rock
6Confidential and Proprietary | Littelfuse, Inc. © 2020 6
中国5G基站投资表
12
40
70
110
140
130
120
8
30
50
80
110
100
90
2019 2020 2021 2022 2023 2024 2025
5G Investment Plan of China
5G Sites Investment ( Billion RMB/Year )
Confidential and Proprietary | Littelfuse, Inc. © 2020 8Confidential and Proprietary | Littelfuse, Inc. © 2020 8
典型的4G/5G基站电源建设
4G BBU +RRU Power >6KW
5G Communication Center Power 100KW~MW
5G AAU * 3 Power >1200W *3
AC380V
5G BBU Power >2KW
PSU1
PSU1
ACPD
Backup Battery
DCPD 48V
UPS for 220Vac
AC380V/220V
PSU2
PSU2
ACPD
BackupBattery
DCPD 48V 57V
UPS for 220Vac
PSU3
Line length >30m , 57V
5G Macro Site Power >11KW( 4G included )
Line length
>500m, Local AC
supply
220Vac
48V
48V48V48V
Backup Battery
Solar optional
Solar optional Solar
optional
ACPD: AC Power Distributor PSU: Power Supply Unit (48V out ) DCPD: DC Power Distributor
BBU: Building Baseband Unit RRU: Remote Radio Unit AAU: Active Antenna Unit
Power devices
chances mainly in
PSU and DCPD
9Confidential and Proprietary | Littelfuse, Inc. © 2020 9
PSU 48VDC电源简介(4G/5G)PSU: Power Supply Unit (AC-DC 48V out)
In China Market , key projects of PSU for Telecom power :
48100 (Output 48V / 100A ) 4850(Output 48V/50A) 4830(Output 48V/30A)……
PSU 48100
PSU 4850
PSU 4830
5G Communication Center Power 100KW~MW
5G Macro SitePower >11KW
5G Micro SitePower <6KW
5G AAU Far end
Power >1200W
PSU 4850 is the key project ,
will show its topology in next
pages.
Confidential and Proprietary | Littelfuse, Inc. © 2020 10Confidential and Proprietary | Littelfuse, Inc. © 2020 10
PSU 4850 ---低成本高效率 (88~92%)方案
MOS: 650V/600V, 30A~50ADriver IC: IXDN604, 4340
X-MOS: 650V/600V, 30A~50ADriver IC: IXDN604
Schottky Diode : 100~150VSync-Rectifier Mosfet : 150V X3, X4 Class Driver IC: IXDN604,4340, 609
800V/1200VRectifier diode, Bridge
Input
AC220V
Si Diode : Fast recovery , 600V/ 30A ~60A Sic Diode : 650V/ 10~20A
Output
DC48~57V
Interleaved PFC LLC Full-Bridge ( or Half-Bridge ) Output Rectifier
Diode /Mos Optional
Confidential and Proprietary | Littelfuse, Inc. © 2020 11Confidential and Proprietary | Littelfuse, Inc. © 2020 11
PSU 4850--- 高效率(96~98%)方案
Input
AC220
VOutput
DC48~57V
Totem pole bridgeless PFC LLC Full-Bridge ( or Half-Bridge ) SYNC –Rectifier (MOS)
800V/1200V Rectifier DiodeDSP**-12ADSI**-12A
MOS: 650V/600V, 30A~50ADriver IC: IXDN604, 4340
X-MOS: 650V/600V, 30A~50ADriver IC: IXDN604, 4340
Sync-Rectifier Mosfet : 150V X3, X4 Class Driver IC: IXDN604,4340, 609
12Confidential and Proprietary | Littelfuse, Inc. © 2020 12
IXYS 4G/5G 电源方案推荐器件选型(Ultra Junction X MOSFET Series)
Part Number
VDSS ID(con
t)
RDS(on
)
Qg RthJC
Max TC=25°C Max Typ Max
(V) (A) TJ=25°C (nC) (ºC/W)
(Ω)
IXTH150N15X4 150 150 0.0072 105 0.31
IXFH90N20X3 200 90 0.0128 78 0.32
IXFH80N25X3 250 80 0.016 83 0.32
IXFH34N65X2 650 34 0.105 56 0.23
IXFH46N65X2 650 46 0.076 75 0.19
IXFH60N65X2 650 60 0.052 107 0.16
IXFH80N65X2 650 80 0.04 144 0.14
IXFX100N65X2 650 100 0.03 180 0.12
IXFB150N65X2 650 150 0.017 430 0.08
IXFH40N85X 850 40 0.145 98 0.145
IXFH32N100X 1000 32 0.220 130 0.14
13Confidential and Proprietary | Littelfuse, Inc. © 2020 13
Rectifier Diode Vrrm
(V)
Ifav
(A)
Rthjc (K/W )
DSP45-12A 1200 45 0.55
DLA60I1200HA 1200 60 0.3
Fast Recovery Diode Vrrm
(V)
Ifav
(A)
Trr (ns )
DSEI30-06A 600 30 35
DSEI60-06A 600 60 35
DSEP30-06A 600 30 35
DSEP60-06A 600 60 35
DSEP30-12A 1200 30 40
IXYS 4G/5G 电源方案推荐器件选型(Diodes)
14Confidential and Proprietary | Littelfuse, Inc. © 2020 14
• 1.5A to 30A Peak Source/Sink Drive Current
• Wide Operating Voltage Range
• -40°C to +125°C Extended Operating Temperature Range
• Logic Input Withstands Negative Swing of up to 5V
• Matched Rise and Fall Times
• Low Propagation Delay Times
• Low 10µA Supply Current
• Low Output Impedance
IXYS 4G/5G 电源方案推荐器件选型(Driver)
Low Side Driver
600 Series 35V operating voltage . 2/4/6/9/14/30 A
IX4426/7/8 Lowest priced ICD gate drive (1.5A )
IX4340 Lower cost low side driver (5A )
Optically Isolated Gate Drivers
IX3120 (2.5A for IGBT )
IX3180 ( 2.5A for Mosfet , high speed )
SiC Mosfet & IGBT Driver
IX4351, New part , +30V/-10 V , 9A
Desaturation detection with soft shut-down
16Confidential and Proprietary | Littelfuse, Inc. © 2020 16
电源损坏原因
•Overvoltage Sources in Power System
Lightning induced Transient
Power Internal Sources(include
Power Fault Event,GPRs, Surge Coupling ect)
•Overvoltage Cause potential damage
System abnormal working
System damage
Load fault or damage
Potential personal injury
Underground
Line
Underground
Line
Transients
Transients
Transients
Transients
Overvoltage Protection is significant to prevent Power System normal/safe/reliable operation!
17Confidential and Proprietary | Littelfuse, Inc. © 2020 17
Category A: parts of the installation at some
distance from the service entrance
Category B: Between Cat A and Cat C
Category C: External part of structure, extending
some distance into the building.
电源保护需要遵循标准(eg:IEEE C.62.41-2002)
20Confidential and Proprietary | Littelfuse, Inc. © 2020 20
SIDACtor/GDT/MOV/TVS 特性比较
Technology SIDACtor GDT MOV TVS
Response Time Fastest Slowest Slower
response time
Fast
Capacitance Low As low as 1pF High Higher
Current
surge rating
High As high as 500A
for 200 impulses
High Low
Electrical
Characteristic
Stable Degrade with time Fatigue after
multiple
pulses
Stable
Application Principle over-voltage
in telecom, datacom
circuit
Telecom
applications
Useful in AC
applications
Secondary protection
21Confidential and Proprietary | Littelfuse, Inc. © 2020 21
AC电源雷击保护
This delta configuration provides:
1) Differential protection between L-N
2) Common mode protection for L&N-PE
3) Prevents a current leakage path through
the MOVs to PE(Zero energy stand-by
consumption)
Output
TVS
SPD or
discrete
Devices
Technology Series
TMOV/MOV TMOV14R385M;V14E385P
TVS AK1/LTKAK1-C;430C;AK380
/LTKAK33 -380C;430C
GDT CG2600/CG
3 series
22Confidential and Proprietary | Littelfuse, Inc. © 2020 22
AC电源Sidactor泄流保护方案
220VAC
MOV+TSS(Sidactor) decrease Vc
MOV block short current@TSS On State
Surge Without AC Input Surge With AC Input
Note:TSS Leakage <<MOV Most Open Volt on TSS Possible TSS malfunction Cause MOV Conduct on Short Current Damage
MOV;Thus,Make Cetain Sidactor block timely is significant ;MOV Vnom >TSS Vs gurrantee TSS close
So what is the “ideal” device and can we make it?
The “Ideal device” would have no leakage current in the normal operating region
And clamping voltage is equal or close to VR ( standoff voltage )
This solution is to combine crowbar with MOV to offset high clamping voltage of
MOV , increase block voltage and reduce leakage to nA level
P2300FNL
V14E230P
23Confidential and Proprietary | Littelfuse, Inc. © 2020 23
AC电源MOV/Sidactor选型HMOV UltraMOV
Coating Silicone Phenolic Epoxy
Operating Temp. -55°C to 125°C -55°C to 125°C -55°C to 85°C
Coating Isolation Voltage 2500V 800V 2500V
TC -55°C to +125°C,
1000 cycles
-55°C to +125°C, 1000 cycles -40°C to +85°C, 5 cycles
Disc size10mm
14mm
20 mm
10mm
14mm
20mm
7mm
10mm
14mm
20 mm
Agency Approval UL, IEC TUV UL, VDE
Peak Current 10mm: 3500A (50Vac and above)
14mm: 6500A (50Vac and above)
20mm: 10000A (50Vac and above)
LFUS Series Package DirectionalPower rating Reverse Standoff
Voltage (VR)(by 10x1000us)
PxxxMEL Surface Mount Bi Ipp @8/20 5kA 150~480V
PxxxFNL Surface Mount BI Ipp@8/20 3kA 64v~380VSMTO-263
24Confidential and Proprietary | Littelfuse, Inc. © 2020 24
AC电源保险丝选型 6X32mm504 series: high I2t ,but low interrupting
505 series: High interrupting, but low I2t
25Confidential and Proprietary | Littelfuse, Inc. © 2020 25
AC电源保险丝选型 5x20mm
487 fuse High 420VAC/DC Voltage Low I2T-----Now Max 25A(405 Series)
477 fuse High 500VAC and 400VDC High I2T ------ Now Max 25A(417 series)
26Confidential and Proprietary | Littelfuse, Inc. © 2020 26
DC 电源保护方案
-48V
Return 0V
PE
463020.ER
463020.ER
SMDAK3-
066C
SMDAK3-
066CCG5090MS
如果-48VDC return 没有接
地,建议用SMDAK3-066C
替换GDT
2.2uH
2.2uH
1.5SMB68CA
1.5SMB68CA
DC power protectionFor the features of DC feeder, DC ports should be taken the following
protection measures particularly.
Feeder cables from RRU should have DC SPD and then access into
DC power cabinet.
Shielded cable should be adopted for power lines and be connected
with the earth bar(MEB) which out of the feed-through window.
If needed, DC surge protection circuit could be installed according
to circuit diagram shown in left.
Low Clamping,Hi-Pot Isolation
27Confidential and Proprietary | Littelfuse, Inc. © 2020 27
备用电池系统器件选型 Fuse881/881F—Up 100A current
456SD—High Current High I2t
463---High reliability,match TC 1000Hrs Test
28Confidential and Proprietary | Littelfuse, Inc. © 2020 28
DC电源高性能AK<KAK产品
Benefits:High performance;High reliability;Low Clamping voltage
29Confidential and Proprietary | Littelfuse, Inc. © 2020 29
DC电源高性能SMD MOV 和多腔体GDT
2220封装
GDT:High Surge capacity;Differencial Mode protection
SMD MOV:High Surge capacity;Samll Size
30Confidential and Proprietary | Littelfuse, Inc. © 2020 30
5G AAU CAN/RS-485 端口防雷保护
AAU PA Protection
1
2
3
1
2
Technology Series
TVS Diode/GDT SMDJ6.0CA
CG2 series
TVS Diode SMBJ
SIDACtor P0080S3NL
1
2
3
Technology Series
Fuse 438
TVS Diode SMF
1
2
32Confidential and Proprietary | Littelfuse, Inc. © 2020 32
备用电池储能系统-BESS
CELL
• 40Ah/60Ah
•148Wh/222 Wh
MODULE
•38Vdc to 100Vdc
•Up-to 100A
RACK
•Up-to 100A
•Up-to 1250Vdc
CONTAINER
•Several thousand Ampere
•Up-to 1500Vdc
Fuse
Vac in
Rectifier
充电拓扑使用两颗IGBT/MOSFET的异步半桥转换电路
33Confidential and Proprietary | Littelfuse, Inc. © 2020 33
备用电池系统器件选型 MOSFET / IGBT
Part Number
VDSS ID(cont) Chip RDS(on) CISS Qg trr RthJC
TC = 25°C TJ = 25°C typ. typ. typ.
V A W pF nC ns K/W
IXFP 130N10T2 100 130 0.0091 6600 130 n/a 0.42
IXFA 130N10T2 130 0.0091 6600 130 n/a 0.42
IXFP 76N15T2 150 76 0.0200 5800 97 69 0.43
IXFA 110N15T2 110 0.0130 8600 150 85 0.31
IXFH 160N15T2 160 0.0090 15000 253 n/a 0.17
IXFH 150N17T2 175 150 0.0120 14600 233 n/a 0.17
IXFT 150N17T2 150 0.0120 14600 233 n/a 0.17
Charge/Discharge MOSFET---Control Switch
Half Bridge Asymmetrical Forward Convert XPT IGBT