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參數(shù)資料
| 型號： | QPI-8L |
| 廠商： | Vicor Corporation |
| 元件分類： | 基準(zhǔn)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)： | 3/8頁 |
| 文件大?。?/td> | 268K |
| 代理商： | QPI-8L |
Picor Corporation www.picorpower.com
QPI-8L Data Sheet Rev. 1.0 Page 3 of 8
P
P
R
R
E
E
L
L
I
I
M
M
I
I
N
N
A
A
R
R
Y
Y
Applications
–
EMI
The QPI-8 is an active EMI filter providing conducted
common-mode and differential-mode attenuation from
150 kHz to 30 MHz. Designed for the telecom and ITE bus
range, the QPI supports the PICMG
3.0 specification for
filtering system boards to the EN 55022 Class B limit.
The QPI-8 attenuates conducted noise and provides the
Hot-Swap function required in redundant systems,
minimizing design time compared to using discrete
approaches while minimizing the uncertainty that the
system will pass the compliance requirements.
The plots in
Figures 3 and 4
were taken using the standard
50
/50μH LISN and measurement conditions with the
peak detection mode of the spectrum analyzer for a
conducted EMI test. The results show the total noise
spectrum for a particular converter and load compared to
the CISPR22 EN 55022 Class B Quasi-peak detection limit.
The plot in
Figure 4
shows the effect of inserting a QPI-8
filter between the DC bus and the converter input under
the same operating conditions as in
Figure 3
. The resulting
plot shows the QPI-8 is effective in reducing the measured
prefiltered total noise spectrum to well below the
EN 55022 Quasi-peak detection limit. Using the Quasi-
peak detection measurement mode would result in lower
amplitudes by the error factor this method introduces.
Applications
–
Hot-Swap
The QPI-8 6 Amp rating provides filtering for up to
288 Watts of power from a 48 V bus with a 70oC PCB
temperature. It is well suited for the 200 Watt per board
limit in the PICMG
3.0. The 1.0" x1.0" x 0.2" surface
mount LGA package provides ease of manufacturing by
eliminating through-hole assembly. The current derating
curve shown in
Figure 5
should be used when the PCB
temperature that the QPI-8 is mounted to exceeds 70oC.
The QPI-8 is designed to have an undervoltage range of
32 V to 34 V set points when the UVEN pin is tied directly
to the BUS+ pin. The QPI-8 becomes enabled when the
input voltage exceeds 34 V and continues to work down
to 32 V before being disabled.
The QPI-8 overvoltage range is designed to be 72 V to
76 V when the OV pin is tied directly to the BUS+ pin. The
QPI-8 remains functioning until the input voltage
surpasses 76 V, where the QPI-8 will shutdown until the
input voltage falls below 72 V.
External resistors can be added
(see Figures 9a and 9b)
to
trim the UV and OV trip points higher. The graph in
Figure 6
shows the trimming effect for a range of external
series resistors. The equations in
Figure 7
can be used to
calculate the UV and OV thresholds.
Figure 3 –
Conducted EMI profile of a DC-DC converter.
Figure 4 –
Conducted EMI profile of a DC-DC converter with QPI-8.
0
10
20
30
40
50
60
70
80
90
100
PCB to QPI Interface Derating Curve Over Temperature (Deg. C)
Q
8
6
4
2
0
Figure 5 –
QPI-8 current derating curve over temperature.
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相關(guān)代理商/技術(shù)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(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開關(guān):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(yīng)商設(shè)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(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開關(guān):無 電流限制:可調(diào) 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(yīng)商設(shè)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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