参数资料
| 型号： | SQE48T20050-PGB0 |
| 厂商： | Power-One |
| 文件页数： | 6/14页 |
| 文件大小： | 0K |
| 描述： | DC/DC EIGHTH BRICK |
| 标准包装： | 100 |
| 系列： | * |
SQE48T20050 DC-DC Converter Data Sheet
36-75 VDC Input; 5.0 VDC @ 20 A Output
reduce output voltage. When the output voltage
drops below 60% of its nominal value, the converter
will shut down (Fig. 15).
Once the converter has shut down, it will attempt to
restart nominally every 200 ms with a typical 3-5%
duty cycle (Fig. 16). The attempted restart will
continue indefinitely until the overload or short circuit
conditions are removed or the output voltage rises
above 60% of its nominal value.
Once the output current is brought back into its
specified range, the converter automatically exits the
hiccup mode and continues normal operation.
For implementations where latching is required, a
“Latching” option (L) is available for short circuit and
OVP protections. The converters with the latching
feature will latch off if either event occurs. The
converter will attempt to restart after either the input
voltage is removed and reapplied OR the ON/OFF
pin is cycled.
Output Overvoltage Protection (OVP)
The converter will shut down if the output voltage
across Vout(+) (Pin 8) and Vout(-) (Pin 4) exceeds
the threshold of the OVP circuitry. The OVP circuitry
contains its own reference, independent of the output
voltage regulation loop. Once the converter has shut
down, it will attempt to restart every 200 ms until the
OVP condition is removed.
For implementations where latching is required, a
“Latching” option (L) is available for short circuit and
OVP protections. Converters with the latching
feature will latch off if either event occurs. The
converter will attempt to restart after either the input
voltage is removed and reapplied OR the ON/OFF
pin is cycled.
Overtemperature Protection (OTP)
The converter will shut down under an
overtemperature condition to protect itself from
overheating caused by operation outside the thermal
derating curves, or operation in abnormal conditions
such as system fan failure. Converter with the
non-latching option will automatically restart after it
has cooled to a safe operating temperature.
Safety Requirements
The converters meet North American and
International safety regulatory requirements per
UL60950 and EN60950. Basic Insulation is provided
between input and output.
To comply with safety agencies’ requirements, an
input line fuse must be used external to the
converter. A 5 A fuse is recommended for use with
this product.
All SQE converters are UL approved for maximum
fuse rating of 15 A. To protect a group of converters
with a single fuse, the rating can be increased from
the recommended values above.
Electromagnetic Compatibility (EMC)
EMC requirements must be met at the end-product
system level, as no specific standards dedicated to
EMC characteristics of board mounted component
dc-dc converters exist. However, Power-One tests its
converters to several system level standards,
primary of which is the more stringent EN55022,
Information technology equipment - Radio
disturbance characteristics - Limits and methods of
measurement.
An effective internal LC differential filter significantly
reduces input reflected ripple current (Fig. 13), and
improves EMC.
With the addition of a simple external filter, all
versions of the SQE48-Series of converters pass the
requirements of Class B conducted emissions per
EN55022 and FCC requirements. Please contact
Power-One Applications Engineering for details of
this testing.
Characterization
General Information
The converter has been characterized for many
operational aspects, to include thermal derating
(maximum load current as a function of ambient
temperature and airflow) for vertical and horizontal
mounting, efficiency, startup and shutdown
parameters, output ripple and noise, transient
response to load step-change, overload, and short
circuit.
The figures are numbered as Fig. x.y, where x
indicates the different output voltages, and y
associates with specific plots (y = 1 for the vertical
thermal derating, …). For example, Fig. x.1 will refer
to the vertical thermal derating for all the output
voltages in general.
The following pages contain specific plots or
waveforms associated with the converter. Additional
comments for specific data are provided below.
Test Conditions
JUL 07, 2006 revised to APR 12, 2007
Page 6 of 16
www.power-one.com
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相关代理商/技术参数 |
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| SQE48T20050-PGB0G | 功能描述:DC/DC转换器 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: |
| SQE48T20120-NDA0G | 功能描述:DC/DC转换器 240W 12V at 20A Bus Converter 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: |
| SQE48T20120-NDABG | 功能描述:DC/DC转换器 240W 13V at 20A baseplate 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: |
| SQE48T20120-NDB0G | 制造商:Power-One 功能描述:- Bulk 制造商:Power-One 功能描述:Module DC-DC 1-OUT 12V 20A 5-Pin 1/8-Brick |
| SQE48T30012-NGB0 | 功能描述:DC/DC转换器 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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