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参数资料
| 型号： | QPI-4L |
| 厂商： | Vicor Corporation |
| 元件分类： | DC/DC变换器 |
| 英文描述： | 7 Amp Active EMI Filter for 48 V DC Bus |
| 中文描述： | 7安培有源EMI滤波器的48伏直流母线 |
| 文件页数： | 4/8页 |
| 文件大小： | 143K |
| 代理商： | QPI-4L |
Picor Corporation www.picorpower.com
QPI-4L Data Sheet Rev. 3.0 Page 4 of 8
Figure 6 – Recommended schematic for QPI. Values of CIN and C1-C4 should be the values recommended by the converter manufacturer.
If the manufacturer does not specify a value for the Y-capacitors use 4.7nF. Ry=10, 1/4 W.
BUS+
QPI+
BUS-
QPI-
SHIELD
BUS
SUPPLY
QPI
VIN+
VOUT+
VIN-VOUT-
SHIELD
CONVERTER
Optional Connection
C1
C2
C3
C4
RY
PCB plane under converter
CIN
CB
47F
QPIs will filter multiple DC-DC converters up to the
maximum current rating. The schematic in Figure 7
shows the required circuit for multiple DC-DC
converters. The Shield Plane should be added under
each converter as a common EMI Shield. Note that only
a single RY is required in a multiple converter
configuration.
If higher attenuation is required, QPIs can be
connected in series. Figure 8 shows the proper
schematic for QPIs in series. Note that only one RY is
required in this configuration.
The QPI can also be used to filter embedded or “down”
converters made up of discrete components. Where
ever possible a Shield Plane and Y-capacitor decoupling
should be included in the embedded converter design.
Follow the circuit and layout recommendations for a
brick converter shown in Figures 7, 9 & 10.
Thermal Considerations
The current derating curve shown in Figure 5 should be
used when the PCB temperature in close proximity of
the QPI-4 exceeds 60°C. For example, the QPI-4 will
support up to 6.5 A of current or 312 W from a 48 Vdc
bus at an 80°C interface temperature. Temperature
should be measured at the PCB interface to the QPI-4
on the Bus +/- pads or the QPI+/- pads. Refer to Figures
9, 10 & 12 for PCB layout recommendation.
010
20
30
4050
6070
80
90
100
PCB to QPI Interface Temperature (Deg. C)
QPI
Current
(A)
8
6
4
2
0
Figure 5 – QPI-4 current derating curve.
相关PDF资料 |
PDF描述 |
|---|---|
| QPI-5-EVAL1 | Evaluation Board for Active EMI Filters |
| QPI-6-EVAL1 | Evaluation Board for Active EMI Filters |
| QPO-1L | Output Ripple Attenuation SiP |
| QPO-1Q | Output Ripple Attenuation SiP |
| QPO-2EVAL1 | Evaluation Board for QPO-2 Active Output Filter |
相关代理商/技术参数 |
参数描述 |
|---|---|
| QPI-4LZ | 功能描述:FILTER ACTIVE EMI 48V 7A LGA RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:Picor®, QUIETPOWER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| QPI-5-CB1 | 功能描述:EVALUATION QPI-5LZ DOSA STYLE RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:Picor®, QUIETPOWER® 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| QPI-5-EVAL1 | 功能描述:EVALUATION BOARD FOR QPI-5 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:Picor®, QUIETPOWER® 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| QPI-5L | 制造商:POWERBOX 制造商全称:Powerbox 功能描述:ACTIVE EMI FILTER |
| QPI-5LZ | 功能描述:FILTER 24V 14A ACTIVE EMI RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:Picor®, QUIETPOWER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
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