company confidential 1. 2 low r dson nextpowers3 25v, 30v & 40v october 11, 2015 3 30v lfpak56...
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COMPANY CONFIDENTIAL 1
COMPANY CONFIDENTIAL 2
COMPANY CONFIDENTIAL
Low RDSon NextPowerS3 25V, 30V & 40V
April 19, 2023
3
30V LFPAK56 Types Max RDSon mΩ (10V) Typ. RDSon mΩ (10V) Status
PSMN0R9-30YLD 0.87 0.67 Production
PSMN1R0-30YLD 1.02 0.8 Production
PSMN1R2-30YLD 1.21 0.97 Production
PSMN1R4-30YLD 1.39 1.22 Production
30V LFPAK33 Types Max RDSon mΩ (10V) Typ. RDSon mΩ (10V) Status
PSMN2R4-30MLD 2.4 2 Production
超低導通阻抗MOSFETs
25/30 伏特超低導通阻抗結合了優異的安全工作區域 SOA ( 稍後詳述 ),
特別適合 OR-ing 及熱切換線路應用 , 同樣也適合同步整流應用 .
40V LFPAK56 Types Max RDSon mΩ (10V) Typ. RDSon mΩ (10V) Status
PSMN1R0-40YLD 1.1 0.93 Production
PSMN1R4-40YLD 1.4 1.12 Production
25V LFPAK56 Types Max RDSon mΩ (10V) Typ. RDSon mΩ (10V) Status
PSMN0R7-25YLD 0.74 0.57 Coming Soon
COMPANY CONFIDENTIAL
低導通阻抗 low RDSon = 降低傳導損失
4
S
G
D (n+ substrate)
SG
S
G
D
S
G
S
S S
channels
more heavilydoped n-type
drift region
p-typepillars
D (n+ substrate)
Typical Competitor NextPowerS3
RDSon = Rchannel + Rdrift + Rsubstrate + (Rpackage)
Source Metal
p-bodychannels
cellpitch
p-typedrift
region
COMPANY CONFIDENTIAL
低導通阻抗 low RDSon = 降低傳導損失
5
S
G
D (n+ substrate)
SG
S
G
D
S
G
S
S S
channels
more heavilydoped n-type
drift region
p-typepillars
D (n+ substrate)
Typical Competitor NextPowerS3
RDSon = Rchannel + Rdrift + Rsubstrate + (Rpackage)
Source Metal
p-bodychannels
其他競爭對手透過降低溝槽間距以增加通道並聯數量來達到降低導通阻抗的目的
cellpitch
p-typedrift
region
COMPANY CONFIDENTIAL
低導通阻抗 low RDSon = 降低傳導損失
6
S
G
D (n+ substrate)
SG
S
G
D
S
G
S
S S
channels
more heavilydoped n-type
drift region
p-typepillars
D (n+ substrate)
Typical Competitor NextPowerS3
RDSon = Rchannel + Rdrift + Rsubstrate + (Rpackage)
Source Metal
p-bodychannels
其他競爭對手透過降低溝槽間距以增加通道並聯數量來達到降低導通阻抗的目的
cellpitch
Superjunction’s 則是提高 drift 層離子濃度以降低阻抗而非依賴降低溝槽間距
p-typedrift
region
COMPANY CONFIDENTIAL
Power MOSFET Structures
April 19, 20237
典型的競爭對手 (split-gate trench)
NextPowerS3(super-junctiontrench)S
G
D
S SG
D
SG
G
D
S
S S
G
D
S
S
G
D
S
S
G
D
S
G
D
S
S
G
D
S
G
D
S
S S
G
D
S溝槽間距
競爭對手 I: 0.8µm
競爭對手O:
0.8µm
競爭對手 F:
1.0µm
Cell Pitch
NXP: 1.5µm
COMPANY CONFIDENTIAL 8
COMPANY CONFIDENTIAL
NextPowerS3 – 完美平衡適用切換式直流電源轉換應用
9
RDSon Qg
FOM
低導通阻抗 MOSFET降低傳導損失 (I2R) , 尤其是在高負載狀態更顯重要
低閘極電荷降低切換損失 , 對高頻應用尤其重要
MOFET 的質量指標 Figure of Merit (FOM) 是計算導通阻抗及閘極電荷的乘積 . 乘積的值越低代表MOSFET 在切換式應用的效能越好
MOSFET 設計上的挑戰低導通阻抗需要較大的芯片面積 .
低閘極電荷需要較小的芯片面積 .
要生產出同時擁有低導通阻抗又符合低閘極電荷是對於 MOSFET 製造商的挑戰
Welcome to NextPowerS3…
COMPANY CONFIDENTIAL
RDSon Matching
在比較 NextPowerS3 與競爭對手的效能時 , 相近RDSon 的組合通常在整段負載區段都表現出效能優勢 . 這是由於雙方案例在傳導損方面是一樣的 , 因此切換損較低的優勢就會被凸顯出來
Benchmarking Peak Efficiency
10
Load Current
Efficiency
Typical Competitor Typical Competitor
RDSon matchedNextPowerS3
Higher RDSon
NextPowerS3Peak
Peak
Load Current
Efficiency
Using a Higher RDSon
NextPowerS3 使用 RDSon 稍大的規格 , Qg 可以進一步降低 , 這可以幫助提升最高點的效率 . 在重載區段雖然傳導損失較大 , 但是和切換損的優勢抵銷後仍可得到相近的效能 .
COMPANY CONFIDENTIAL
Low Qg NextPowerS3 30V & 40V
April 19, 2023
11
30V LFPAK56 Types RDSon mΩ (Max. @ 10V) Qg nC Status
PSMN0R9-30YLD 0.87 51 Production
PSMN1R0-30YLD 1.02 38 Production
PSMN1R2-30YLD 1.2 32 Production
PSMN1R4-30YLD 1.4 28 Production
PSMN2R4-30YLD 2.42 16 Production
PSMN3R0-30YLD 3.1 14 Production
PSMN4R0-30YLD 4.1 9 Production
PSMN6R0-30YLD 6 6 Production
PSMN6R1-30YLD 6 6 Production
PSMN7R5-30YLD 7.51 5 Production
30V LFPAK33 Types RDSon mΩ (Max. @ 10V) Qg nC Status
PSMN2R4-30MLD 2.48 16 Production
PSMN4R2-30MLD 4.24 9 Production
PSMN7R5-30MLD 7.51 6 Production
Balancing RDSon and Qg
超低 RDSon 是針對像是OR-ing 及熱切換等切換速度不快的應用設計 , 也適用於同步整流 .
如 PSMN1R2-30YLD 這類RDSon & Qg 平衡的品項在直流交換式電源轉換應用能展現出傑出的效能
40V LFPAK56 Types RDSon mΩ (Max. @ 10V) Qg nC Status
PSMN1R0-40YLD 1.1 59 Production
PSMN1R4-40YLD 1.4 45 Production
COMPANY CONFIDENTIAL
超快速切換 = 降低切換損耗
12
S
G
D (n+ substrate)
SG
S
G
D
S
G
S
S S
channels
more heavilydoped n typedrift region
p typepillars
D (n+ substrate)
Typical Competitor NextPowerS3
Source Metal
p bodychannels
切換損發生在寄生電容充放電期間 (Qgs, Qgd, Cgs, Cgd, Coss parameters). 嚴謹的控制結構加上單位面積較少的溝槽數給予最小的切換損失
cellpitch
n typedrift
region
COMPANY CONFIDENTIAL
降壓式電源轉換應用的高效能上橋
NextPowerS3 系列中特定種類有為快速切換應用的上橋做優化 (Control FET)
低閘極組抗 Low Rg
多層佈局
Multi-busbar layout
April 19, 2023
13
VIN
ControlFET
Sync.FET
FETDriver
PWM VOUT
Type RDSon
(max @ 10V)Rg Busbar
sRecommended
Usage
PSMN6R0-30YLD 6mΩ 2.7Ω 0 General purpose
PSMN6R1-30YLD 6mΩ 0.4Ω 3 Fast-switching Control FET
COMPANY CONFIDENTIAL
降壓式電源轉換應用的高效能上橋大瓦數伺服器應用
NextPowerS3 針對高效率大瓦數應用的建議組合
最佳電源密度及熱對策
上橋 HS : LFPAK33
下橋 LS : LFPAK56
Conversion– 12V – 5, 3.3, 2.5V– 12V – 1.8, 1.2, 1V
April 19, 2023
14
VIN
ControlFET
Sync.FET
FETDriver
PWM VOUT
Type RDSon
(max @ 10V)Rg Busbars Recommended
Usage
PSMN1R0-30YLD 1mΩ 1.1Ω 1 SyncFET
PSMN4R2-30MLD 4mΩ 0.4Ω 3 Fast-switching Control FET
COMPANY CONFIDENTIAL
NextPowerS3 BenchmarkingOperation @ 300KHz
15
Load (A)
Eff
icie
ncy
Single Phase Synchronous Buck Regulator3x3mm Control FET ~7mΩ5x6mm Sync FET ~4mΩ (2 off)1H/2LNominal 19V input1.8V output
COMPANY CONFIDENTIAL
NextPowerS3 BenchmarkingOperation @ 500KHz
16
隨著切換頻率上升 , 效率曲線開始分散展開 , NextPowerS3 在頂尖的群組
Single Phase Synchronous Buck Regulator3x3mm Control FET ~7mΩ5x6mm Sync FET ~4mΩ (2 off)1H/2LNominal 19V input1.8V output
Load (A)
Eff
icie
ncy
COMPANY CONFIDENTIAL
NextPowerS3 BenchmarkingOperation @ 700KHz
17
… 同樣的
更高頻率 = 更多切換次數 = NextPowerS3 切換效能的優勢更顯現
Single Phase Synchronous Buck Regulator3x3mm Control FET ~7mΩ5x6mm Sync FET ~4mΩ (2 off)1H/2LNominal 19V input1.8V output
Load (A)
Eff
icie
ncy
COMPANY CONFIDENTIAL
Higher Switching Frequency = Smaller Inductors
Switching Frequency
Inductor Specification
Footprint Volume Weight
300kHz PA0515.321NLT11.2 x 11.2
= 125.44mm²
11.2 x 11.2 x 9 =
1129mm³4.5g
700kHz PA0511.201HL
10 x 7 =
70mm²
44% saving
10.2 x 7 x 5 =
350mm³
69% saving
1.35g
70% saving
1100kHz PA0512.101NLT
7 x 7 =
49mm²
61% saving
7 x 7 x 5 =
245mm³
78% saving
0.94g
79% saving
18
COMPANY CONFIDENTIAL 19
COMPANY CONFIDENTIAL
Leakage problem?
高效率
低突波尖峰
Schottky Plus- 擁有集成蕭特基二極體的優點但是沒有高洩漏電流的問題
COMPANY CONFIDENTIAL
4mΩ NextPowerS3
4mΩ MOSFET with integrated Schottky diode
Drain-Source Voltage (VDS)
Typ
ical
Dra
in L
eaka
ge
Cu
rren
t (I
DS
S)
VGS = 0VTj = 125oC
NextPowerS3 Low Leakage current
100nA
1µA
10µA
100µA
1mA
10mA
(PSMN4R0-30YLD)
COMPANY CONFIDENTIAL
為什麼洩漏電流的高低如此重要 ?
降低效率– PWM 電路依賴上下橋 MOSFET 不斷的開啟關閉 . 高洩漏電流意味MOSFET 一直沒
有完全的關斷 ,所以溫度上升 (影響導通阻抗增加 ) 因而系統效率受影響降低
縮短電池待命時間– 筆記型電腦及其他手持式電子儀器 ,即使設備已經關機 , 電池因為持續的洩漏電流導致
充電後的使用時間縮短
更高的缺陷風險– 生產過程中製造商透過測量監控 , 發現洩漏電流較高的數值即可篩檢出有缺陷的
MOSFET. 但是集成蕭特基二極體的 MOSFET 種類由於與生俱來的高洩漏電流特性而無法使用這種測量監控手法 , 因此增加把缺陷產品交付到客戶手上的風險
22
NXP獨特的 “ SchottkyPlus” 技術 ,意味著 NextPowerS3 不會遭逢這些洩漏電流過高的相關問題 , 並且能加強管控維持高可靠度
COMPANY CONFIDENTIAL 23
COMPANY CONFIDENTIAL
高突波問題
快速切換的 MOSFETs 對效率提升是有益的 , 但…
高突波尖峰
過多震鈴
寄生電容所偶合到閘極的電壓彈跳
上下橋”直通”的風險
VIN
ControlFET
Sync.FET
FETDriver
PWM VOUT
EMI 問題可靠性擔憂
耐壓餘裕度需求
COMPANY CONFIDENTIAL
NextPowerS3 突波解決方案
優化輸出電容– 優化處理以吸收寄生電感的能量– 抑制開關節點突波尖峰– 減少震鈴
優化本體二極體及溝槽結構– 降低 Qrr
– 軟恢復特性 (tb/ta >1)
“SchottkyPlus” 技術– 一樣有集成蕭特基二極體的優點但是沒有洩
漏電流的問題– 更佳的可靠度
COMPANY CONFIDENTIAL
NextPowerS3 Spike Improvement
26
VDS VDS
VGSVGS
較低的初始尖峰及振鈴的快速抑制
Competitor NextPowerS3
閘極彈跳的抑制
COMPANY CONFIDENTIAL 27
COMPANY CONFIDENTIAL
NextPowerS3 安全工作區域 (SOA) 優勢
28
S
G
D (n+ substrate)
SG
S
G
D
S
G
S
S S
channels
more heavilydoped n typedrift region
p typepillars
D (n+ substrate)
Typical Competitor NextPowerS3
Source Metal
p bodychannels
每個通道操作在線性模式電流流通各自發熱 , 因此間距越小熱的交互影響更容易導致失效 .
較大的間距及顯著較大的源極金屬幫助熱散逸讓熱影響在可控範圍 , 因此有極佳的安全工作區域 .
cellpitch
n typedrift
region
COMPANY CONFIDENTIAL
兩個世代間的線性模式效能差異Condition: SOA Drain current (Amp) @ Vds=10V, 10ms pulse for a 5mOhm(@10V) in Power SO8
NXP’s 新世代 RDS(on) 的懮化是透過溝槽結構精心設計的改善來達成 , 因此安全工作區能力沒有改變太多
競爭對手 RDS(on) 的改善是透過縮小溝槽間距提高密度因此犧牲掉安全工作區 (SOA)
Decreasing cell pitch (Increasing cell density)
COMPANY CONFIDENTIAL
Highest Safe Operating AreaNXP platform is intrinsically stronger
April 19, 2023
BSC011N03LS
FDMS7650
PSMN1R0-30YLD (NextPowerS3)
RDS(on) typVGS=4.5V
SOA Limit VDS=10V, tp=10ms
PSMN1R0-30YLD (NXP) 1.1mΩ ≈20A
FDMS7650 (Fairchild) 1.1mΩ ≈9A
BSC011N03LS (Infineon) 1.1mΩ ≈1.3A
Highest Safe Operating Area – Power-S08, 25-30VBetter Performance
low RDS(on) & strong SOA
Poorer Performancehigh RDS(on) & weak SOA
PSMN0R9-25YLC
IRFH5250AON6522
PSMN1R1-25YLC
FDMS7556S
BSC009NE2LS
SIR438DP
PSMN0R9-30YLDPSMN0R7-25YLD
PSMN1R4-30YLDPSMN1R0-30YLC
BSC014N03MSG
PSMN1R3-30YL
PSMN1R7-30YL
BSC011N03LS
IRFH5300
AON6400
AON6780
FDMS7650
FDMS7558S
BSC016N03LS
PSMN1R2-25YL
COMPANY CONFIDENTIAL 32
COMPANY CONFIDENTIAL
LFPAK 包裝介紹The Toughest Power Package
33
Power-S08Compatible(5mm x 6mm)
QFN/DFN3333 Compatible
(3.3mm x 3.3mm)
“No glue, no wires, 175o C” “Tougher just got smaller”
COMPANY CONFIDENTIAL
The Copper Clip Advantage
34
Al wire bonding Cu Clip + wire gate
Cu wire bonding Cu Clip + wire gate
Cu Clip + Au bump Ribbon Bond
Integrated Cu clipNXP (LFPAK)
銅夾片能提供的優點 :• 節溫耐溫 Tj max = 175oC• 低包裝阻抗 Rpackage
• 低導通阻抗 Rds(on)• 低熱阻 Rth(j-pcb)• 低寄生電感• 有效的散熱 -減少熱點• 簡潔的接面製程工序• 高可靠性• 通過汽車 AEC-Q101 認證標準
34
Not all power packages are EQUALNot all power packages are EQUALNot all power packages are EQUALNot all power packages are EQUAL
COMPANY CONFIDENTIAL
LFPAK 機械應力與熱應力耐受性
在 PCB 上因熱衝擊和機械應力造成的位移
在 PCB 上因熱衝擊和機械應力造成的位移
Lead absorbs any mechanical movement
QFN 封裝器件採用全封閉設計,出現熱膨脹或機械應力時缺乏緩衝空間。因此,機械應力與熱應力會造成柵極和源極引腳焊點脫落。此外,應力作用還可能導致引腳周圍的模製材料開裂,使器件防潮功能失效,造成內部鏽蝕,MOSFET 器件提前老化或失效
Traditional QFN / DFN
LFPAK 引腳外露 , 因金屬延展性能吸收因為熱和機械應力造成的脹縮及位移
LFPAK56 & LKPAK33
COMPANY CONFIDENTIAL 36
COMPANY CONFIDENTIAL
Images taken from the tin/lead 63/37 wave soldered gull wing joints
Images taken from the tin/lead 63/37 wave soldered terminations
Optical Inspection of Wave Soldered Joints
37
COMPANY CONFIDENTIAL
Images taken from the tin/lead 63/37 wave soldered gull wing joints
Images taken from the tin/lead 63/37 wave soldered terminations
Optical Inspection of Wave Soldered Joints
38
因為鷗翼引腳外露 ,LFPAK是功率 SO8包裝中…
… 唯一能接受波峰焊製程的資個審查程序包括 :•焊接熱測試 – 包裝浸泡在 300oC 錫液中 10 秒•可焊性測試 – 包裝浸泡在 245oC 錫液中 (最低溫度 ) 5 秒 , 接著確認引腳吃錫狀況…
(更多詳細訊息請參考質量文件包 )
COMPANY CONFIDENTIAL
Examples of AOI Equipment
Optical Inspection machine,manufacturer model number
Orbotech Sybion P36 (solder paste)
SAKI BF-Frontier II (after reflow)
3D solder paste inspection TRI (solder Paste)
SAKI, (After reflow)
TRI, Cyberoptics (After reflow)
Omron/AOI
COMPANY CONFIDENTIAL
Examples of AOI Equipment
Optical Inspection machine,manufacturer model number
Orbotech Sybion P36 (solder paste)
SAKI BF-Frontier II (after reflow)
3D solder paste inspection TRI (solder Paste)
SAKI, (After reflow)
TRI, Cyberoptics (After reflow)
Omron/AOI
因為鷗翼引腳外露 ,LFPAK是功率 SO8包裝中…
… 能使用自動光學檢測設備 (AOI)檢視的
COMPANY CONFIDENTIAL
Prototypes
April 19, 2023
41
COMPANY CONFIDENTIAL
Prototypes
April 19, 2023
42
因為鷗翼引腳外露 ,LFPAK是功率 SO8包裝中…
… 工程師在實驗室比較容易使用及焊接的產品 !
COMPANY CONFIDENTIAL
NextPowerS3 25V, 30V & 40V
30V LFPAK56 Types RDSon mΩ (Max. @ 10V) Status
PSMN0R9-30YLD 0.87 Production
PSMN1R0-30YLD 1.02 Production
PSMN1R2-30YLD 1.2 Production
PSMN1R4-30YLD 1.4 Production
PSMN2R4-30YLD 2.42 Production
PSMN3R0-30YLD 3.1 Production
PSMN4R0-30YLD 4.1 Production
PSMN6R0-30YLD 6 Production
PSMN6R1-30YLD 6 Production
PSMN7R5-30YLD 7.51 Production
30V LFPAK33 Types RDSon mΩ (Max. @ 10V) Status
PSMN2R4-30MLD 2.48 Production
PSMN4R2-30MLD 4.24 Production
PSMN7R5-30MLD 7.51 Production
Nomenclature
NextPowerS3 types are
recognised by the “D”
suffix at the end of the
part number
40V LFPAK56 Types RDSon mΩ (Max. @ 10V) Status
PSMN1R0-40YLD 1.1 Production
PSMN1R4-40YLD 1.4 Production
25V LFPAK56 Types Max RDSon mΩ (10V) Status
PSMN0R7-25YLD 0.74 Coming Soon
COMPANY CONFIDENTIAL
NextPowerS3 Roadmap
Now Q4
2015
Q1 Q2 Q3 Q4
2016
Q1 Q2
Eng Samples
Qual Samples
Demo Samples
General Release
PSMN0R9-30YLD PSMN4R0-30YLDPSMN1R0-30YLD PSMN6R0-30YLDPSMN1R2-30YLD PSMN6R1-30YLDPSMN1R4-30YLD PSMN7R5-30YLDPSMN2R4-30YLD PSMN1R0-40YLDPSMN3R0-30YLD PSMN1R4-40YLD
PSMN0R9-30YLD PSMN4R0-30YLDPSMN1R0-30YLD PSMN6R0-30YLDPSMN1R2-30YLD PSMN6R1-30YLDPSMN1R4-30YLD PSMN7R5-30YLDPSMN2R4-30YLD PSMN1R0-40YLDPSMN3R0-30YLD PSMN1R4-40YLD
30V / 40VLFPAK56
New portfolio now released
30VLFPAK33
PSMN2R4-30MLD PSMN4R2-30MLD PSMN7R5-30MLD
PSMN2R4-30MLD PSMN4R2-30MLD PSMN7R5-30MLD
New portfolio now released
25V / 30VFlipChip
Asym Dual 560.8mΩ + 3.5mΩ (25V)1mΩ + 4mΩ (30V)
0.8mΩ + 3.5mΩ (25V)1mΩ + 4mΩ (30V) New package
25VLFPAK56
PSMN0R7-25YLD+ full portfolio to follow
PSMN0R7-25YLD+ full portfolio to follow
Very low RDSon type for OR-ing & hot-swap applications
2014
COMPANY CONFIDENTIAL
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