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参数资料
| 型号： | WPA60R48D0533-1C |
| 厂商： | MURATA POWER SOLUTIONS INC |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, PACKAGE-7 |
| 文件页数： | 27/31页 |
| 文件大小： | 2498K |
| 代理商： | WPA60R48D0533-1C |
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5
WPA60R48DC
REV A: RoHS
08/2006
Product: www.cd4power.com
APPLICATION NOTES
Input Under-Voltage Shutdown
The nominal input voltage for the WPA60C is 48Vdc.
At an input voltage of 32.5Vdc nominal the unit will
shutdown on an input under-voltage condition. At an
input voltage less than 32.5V the under-voltage sensing
circuit will send a signal to the PWM causing it to go
into idle mode. This will result in no output from the
converter, protecting the unit from a high input current
condition. When the input voltage returns to a level
above 32.5V the unit will return to normal operation. The
unit will typically turn on at an input voltage of 34.5V
nominal as indicated on the Product Data Sheet. This
is due to hysterisis designed into the protective circuit to
prevent excessive cycling of the converter.
Over-Current Protection
To protect against fault or short-circuit conditions on the
output, each module is equipped with current-limiting
circuitry designed to provide continuous protection. After
reaching the current limit point (typically 20% above the
rated output current), the voltage will range between its
rated value and zero, depending upon the amount of
overload. The unit will remain in operation continuously
during this period down to a short-circuit condition.
Once the short or overload has been eliminated, the
output voltage will return to normal without cycling the
input power.
Safety
The WPA60C meets safety requirements per UL/
CUL 60950 and VDE to EN60950. Additionally, the
converter meets CISPR22/ EN55022/ FCC15J Class B
specs for EMI levels with external ltering.
Performance Characterization
Thermal Derating
Maximum ouput current vs. ambient temperature
at various airow rates has been determined for
each model of the WPA60C. From these graphs,
the combination of maximum ambient temperature
and minimum airow for select output current
combinations can be determined. Each model was
analyzed for maximum allowable output power over
an ambient temperature range of 0 to 85oC and for
airows up to 600LFM. In each case the maximum
allowable power at a given airow and ambient
temperature is dened as the point at which a known
component reaches its individual temperature limit.
Efciency
Efciency data for each model was determined
as a function of Load Current and Input Voltage.
Efciency vs. Load Current was measured at an
ambient temperature of 25oC, an airow of 300LFM
with an input voltage of 48Vdc. Efciency vs. Input
Voltage was measured at an ambient temperature of
25oC, an airow of 300LFM and rated load. Graphs
for each model are provided in their respective
section.
Start-Up, ON/OFF and Transient Response
For each model, waveforms are provided showing
output voltage response and timing to input voltage
power up/down, Remote ON/OFF state change and
load current transient responses. Separate traces
are provided showing the on/off timing sequence
of the two outputs relative to one another. Output
voltage transient responses are provided for step
load changes of 50% - 100% of rated load current
and 100% - 50% of rated load. Waveforms for each
model are provided in their respective section.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| WPA60R48D0533-2 | 功能描述:DC/DC转换器 48V to 5.0V / 3.3V Positive Logic 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: |
| WPA60R48D0533-2C | 功能描述:DC/DC转换器 48V to 5.0V / 3.3V 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: |
| WPA60R48D0533-3 | 功能描述:DC/DC转换器 48V to 5.0V / 3.3V Negative Logic 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: |
| WPA60R48D0533-3C | 功能描述:DC/DC转换器 48V to 5.0V / 3.3V 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: |
| WPA60R48D0533C | 功能描述:DC/DC转换器 48V to 5.0V / 3.3V 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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