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参数资料
| 型号： | PKR4622SI |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 6 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | SMD-18 |
| 文件页数： | 21/36页 |
| 文件大小： | 1062K |
| 代理商： | PKR4622SI |
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Ericsson Internal
PRODUCT SPECIFICATION
3 (5)
Prepared (also subject responsible if other)
No.
ESKEVIN
3/1301-BMR 640 1401+ Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EZYPING
2007-8-27
D
Operating information continued
Parallel Operation
Paralleling of several PKR 4000 converters is easily
accomplished by direct connection of the output voltage
terminal pins. The load regulation characteristic is specifically
designed for optimal paralleling performance. Load sharing
between converters will be within ±10%. It is recommended
not to exceed PO = n x 0.9 x POmax, where POmax is the
maximum converter output power and n the number of
paralleled converters, to prevent overloading any of the
converters and thereby decreasing the reliability performance.
Over Current Protection (OCP)
The PKR 4000 Series DC/DC converters include current
limiting circuitry for protection at continuous overload.
The output voltage will decrease towards zero for output
currents in excess of max output current (max IO). The
converter will resume normal operation after removal of the
overload. The load distribution should be designed for the
maximum output short circuit current specified.
Thermal Consideration
General
The PKR 4000 series DC/DC converters are designed to
operate in different thermal environments and sufficient
cooling must be provided to ensure reliable operation.
Cooling is achieved mainly by conduction, from the pins to
the PCB board, and convection, which is dependant on the
airflow across the converter. Increased airflow enhances the
cooling of the converter.
The Output Current Derating graph found in the Output
section for each model provides the available output current
vs. ambient air temperature and air velocity at Vin = 53V.
The DC/DC converter is tested on a 254 x 254 mm,
35 μm (1 oz), 8-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at positions P1. The temperature
at this position should not exceed the max values provided in
the table below
Note that the max value is the absolute maximum rating
(non destruction) and that the electrical Output data is
guaranteed up to Tref +85°C.
Position
Device
Designation
max value
P1
Transformer
Tref
110 C
P
1
Air Flow
E
PKR 4000 series
DC/DC converters, Input 36-75 V, Output up to 1.5 A/7 W
EN/LZT 146 302 R6E September 2007
Ericsson Power Modules AB
Technical Specication
E
PKR 4000 series
DC/DC converters, Input 36-75 V, Output up to 1.5 A/7 W
EN/LZT 146 302 R6F November 2007
Ericsson Power Modules AB
Technical Specication
E
PKR 4000 series
DC/DC converters, Input 36-75 V, Output up to 1.5 A/7 W
EN/LZT 146 302 R6G November 2008
Ericsson Power Modules AB
Technical Specication
28
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PKR4622SIA | 制造商:Ericsson 功能描述: |
| PKR4622SIB | 制造商:Ericsson 功能描述: |
| PKR4622SIC | 制造商:Ericsson 功能描述: |
| PKR4628PIC | 制造商:Ericsson 功能描述: |
| PKR4628SI | 功能描述:DC/DC转换器 5.0 3.3Vdc Isolated Input 36-75V 6W RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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