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參數(shù)資料
| 型號： | QPI-8L |
| 廠商： | Vicor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | AdvencedTCA Hot-Swap Sip With Active EMI Filter |
| 中文描述： | AdvencedTCA熱插拔有源EMI濾波器的SiP |
| 文件頁數(shù)： | 7/8頁 |
| 文件大?。?/td> | 268K |
| 代理商： | QPI-8L |
Picor Corporation www.picorpower.com
QPI-8L Data Sheet Rev. 1.0 Page 7 of 8
P
P
R
R
E
E
L
L
I
I
M
M
I
I
N
N
A
A
R
R
Y
Y
QPI-8 PCB Layout Considerations
For optimal QPI-8 filtering performance, care must be
taken when routing the signal paths of RY
(see Figures 9a
and 9b)
and the shield connections on the PC board. The
RY resistor must connect between the converter's shield
plane and the shield pin of the QPI-8. The connection to
the chassis or protective earth, if required, should be
taken directly from the QPI-8 shield pin as shown in
Figures 9a and 9b
.
Figure 15
shows how this can be accomplished by using
the QPI-8's shield pin to bridge the connection between
RY and PE without allowing any parasitic paths that might
circumvent the QPI-8 and degrade filtering performance.
Reference can be made to the QPI-AN1 application note
for critical PCB layout recommendations regarding filter
performance, but use the QPI-8 pin/pad locations. Some
systems may require the converter’s positive or negative
input or output 'terminal' to be connected to PE
(Protective Earth) ground for safety or other
considerations.
When using the QPI in this situation this 'terminal' must
be connected to the converter shield plane created in the
PCB layout under the converter. Because the PE path may
pass excessive current under a fault condition the
resistance of this path may be limited to a low resistance
value. To meet the resistance requirement without
degrading filter performance RY can be replaced by a
4.7 μH inductor rated for the fault current condition
maintaining low power dissipation during a fault until the
protection device clears. The shield return PCB traces must
be sized to handle this current as well.
0
0
0
0
0
0
0
0
0
0.000
0.100
0.100
0.300
0.492
0.441
0.400
0.300
QPI-8 SIP Package
(Bottom View)
0.9843
0.8000
0
0.0200
0.1773
14 places
45.000
°
0.1250
0.0820
0.0625
0.0820
0.0820
R0.0410
Figure 13 –
Start-up into short circuit
CH1: PWRGD, CH2: QPI- to BUS-, CH4: BUS- current
Figure 14 –
LGA Pad, package height and pad location
dimensions in inches.
BUS-
BUS+
QPI+
SHIELD
QPI-
0.4410
0.4410
UVEN
SW
OV NC
PWRGD
SHIELD
PLANE
UNDER
CONVERTER
RY
Figure 15 –
Recommended PCB layout pattern.
0.1310
0.0880
0.0655
0.0440
0.0440
0.0880
2 places
14 places
0
0
0
0
0
0
0
0
0
0
0
0.000
0.100
0.300
0.441
0.485
0.100
0.300
0.397
0.485
QPI Package Outline
QPI PCB Pad Pattern
(Top View)
R0.0440
0.492
Figure 16 –
Recommended PCB receiving footprint.
Part Number
Description
QPI-8L
QPI-8, Land Grid Array Package
Ordering Information
相關PDF資料 |
PDF描述 |
|---|---|
| QPO-1-EVAL1 | QPO Evaluation Board |
| QPO-1-EVAL3 | QPO-1 Evaluation Board, Micro Foot Print DC-DC Converters |
| QPO-1-EVAL5 | QPO-1 Evaluation Board, Mini Foot Print DC-DC Converters |
| QPP-003 | 60W, 869-894 MHz Class AB Power Stage |
| QPP-008 | 35W, 925-960MHz Class AB Driver Stage |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| QPI-8LZ | 功能描述:IC HOT SWAP EMI FILTER 16LGA RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:Picor®, QUIETPOWER® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:119 系列:- 類型:熱交換控制器 應用:通用型，PCI Express? 內部開關:無 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應商設備封裝:80-TQFP（12x12） 包裝:托盤 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF) |
| QPI-8LZ-01 | 功能描述:IC HOT SWAP EMI FILTER 16LGA RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:Picor®, QUIETPOWER® 標準包裝:50 系列:- 類型:熱交換控制器 應用:-48V 遠程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內部開關:無 電流限制:可調 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| QPI-9 | 制造商:VICOR 制造商全稱:Vicor Corporation 功能描述:Hot-Swap SiP With VI Chip EMI Filter |
| QPI-9-CB1 | 制造商:Vicor Corporation 功能描述:QPI-9LZ Filter w/ Hot-Swap Carrier Board for 24 V VI Chip "-CB" Boards up to 6A |
| QPI-9L | 制造商:VICOR 制造商全稱:Vicor Corporation 功能描述:VI Chip Input EMI Filters |
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