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参数资料
| 型号： | QLS25ZD |
| 厂商： | Power-One |
| 文件页数： | 7/8页 |
| 文件大小： | 0K |
| 描述： | DC/DC QTR BRICK 63W 2.5V OUT |
| 标准包装： | 21 |
| 系列： | * |
QLS25 DC-DC Series Data Sheet
25A Quarter-Brick
engineering and understanding of the overall
safety requirements and should be performed by
qualified personnel.
Thermal Considerations
The QLS25 Series converters are designed for
natural or forced convection cooling. The maximum
25
20
15
allowable output current of the converters is
determined by meeting the derating criteria for all
components used in the converters. For example,
the maximum semiconductor junction temperature is
not allowed to exceed 120°C to ensure reliable long-
term operation of the converters. Contact Power-
One for the complete list of the derating criteria.
The graphs in Figures 10-12 show the maximum
output current of the QLS25 Series converters at
different ambient temperatures under both natural
and forced (longitudinal airflow direction, from pin 1
10
5
0
0
100LFM
200LFM
300LFM
400LFM
25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (C)
Figure 11. QLS25ZE (3.3V) Derating Curves
to pin 3) convection.
For example, from Figure 11, the QLS25ZE
operating at 55C can deliver up to 18A reliably with
100LFM forced air, while up to 25A reliably with
400LFM forced air.
25
20
15
25
20
15
10
5
0
0
100LFM
200LFM
300LFM
400LFM
25 30 35 40 45 50 55 60 65 70 75 80 85
10
5
0
100LFM
200LFM
300LFM
400LFM
Ambient Temperature (C)
Figure 12. QLS25ZD (2.5V) Derating Curves
0
25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (°C)
Figure 10. QLS20ZG (5V) Derating Curves
SEP 12, 2003 revised to OCT 26, 2006
Page 7 of 8
www.power-one.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| QLS25ZD-8 | 制造商:Power-One 功能描述: |
| QLS25ZD-NT | 功能描述:DC/DC转换器 2.5V/25A NEG-LOGIC QUARTER BRICK 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: |
| QLS25ZE | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 3.3V 25A 8PIN - Bulk |
| QLS25ZE-N | 制造商:Power-One 功能描述:QUARTER BRICK, 100W, 48VDC INPUT, 3.3VDC OUTPUT - Bulk |
| QLS25ZE-NT | 功能描述:DC/DC转换器 3.3V/25A NEG-LOGIC QUARTER BRICK 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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