- 您现在的位置：买卖IC网 > PDF目录98053 > PKJ4711EPILA (ERICSSON POWER MODULES AB) 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | PKJ4711EPILA |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | 2.300 X 2.400 INCH, 0.330 INCH HEIGHT, LOW PROFILE, HALF BRICK PACKAGE-9/8 |
| 文件页数： | 8/18页 |
| 文件大小： | 480K |
| 代理商： | PKJ4711EPILA |
16
PKJ 4000E PI
EN/LZT 146 025 R2A Ericsson Power Modules, May 2003
Thermal Consideration
Position
Device
Tcritical
Recommended Max Value
P1
FR4 PWB
Tsurface
125C
P2
Transformer
Tcore
125C
P2
P1
Airflow
General
The PKJ 4000E Series DC/DC converters are designed
to operate in a variety of thermal environments, however
sufficient cooling should be provided to help ensure reliable
operation. Heat is removed by conduction, convection and
radiation to the surrounding environment. Increased airflow
enhances the heat transfer via convection. The available load
current vs. ambient air temperature and airflow at Vin=53 V
for each model is according to the information given under
the output section. The test is done in a wind tunnel with a
cross section of 305x305mm, the DC/DC converter vertically
mounted on a 6 layer PCB with a size of 254x254mm. Proper
cooling can be verified by
measuring the temperature of
selected devices. Peak temperature can occur at position P1
and P2. The temperature at these positions should not exceed
the recommended max values.
Calculation of ambient temperature
By using the thermal resistance the maximum allowed
ambient temperature can be calculated.
1. The powerloss is calculated by using the formula
((1/
η) - 1) × output power = power losses.
η = efciency of converter. E.g 89% = 0.89
2. Find the value of the thermal resistance in the diagram
by using the airow speed at the module. Take the thermal
resistance x powerloss to get the temperature increase.
0
123
0
2
4
6
8
10
[m/s]
[°C/W]
Thermal resistance vs. airspeed measured at the converter.
Tested in windtunnel with a cross section of 305×305 mm
mounted on a 6 layer PCB with a size of 254×254 mm.
3. Max allowed calculated ambient temperature is: Max
TPCB of DC/DC converter – temperature increase.
E.g PKJ 4810E PI at 1m/s:
B. 10.2W × 7.0°C/W = 71.4°C
C.125°C - 71.4°C = max ambient temperature is 53.6°C
The real temperature will be dependent on several factors,
like PCB size and type, direction of airow, air turbulence
etc. It is recommended to verify the temperature by testing.
A. ((
) - 1) × 82.5W = 10.2W
1
0.89
相关PDF资料 |
PDF描述 |
|---|---|
| PKJ4810EIP | 1-OUTPUT 82.5 W DC-DC REG PWR SUPPLY MODULE |
| PKJ4111EIP | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PKJ4719EIP | 1-OUTPUT 75.5 W DC-DC REG PWR SUPPLY MODULE |
| PKJ4115EIP | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| PKJ4618GEIP | 1-OUTPUT 65 W DC-DC REG PWR SUPPLY MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PKJ4713PIP | 制造商:Ericsson 功能描述:ISOLATED, THRU-HOLE, CONVERTER - Bulk |
| PKJ4713PIT | 功能描述:DC/DC转换器 12 Vdc 6.25A Iso Input 36-75V 75W 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: |
| PKJ4718BPIT | 功能描述:DC/DC转换器 1.8 Vdc 40A Iso Input 36-75V 72W 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: |
| PKJ4718PIT | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 1.8V 42A 76W - Bulk |
| PKJ4719EPI | 功能描述:DC/DC转换器 2.5 Vdc 30A Iso Input 48V 75W 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: |
发布紧急采购，3分钟左右您将得到回复。