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参数资料
| 型号： | SSQE48T20033-PABNG |
| 厂商： | Power-One |
| 文件页数： | 6/12页 |
| 文件大小： | 0K |
| 描述： | DC/DC SIXTEENTH BRICK |
| 标准包装： | 98 |
| 系列： | * |
SSQE48T20033 DC-DC Converter
36-75 VDC Input; 3.3 VDC, 20 A Output
Data Sheet
Protection Features
Input Undervoltage Lockout
Input undervoltage lockout is standard with this
converter. The converter will shut down when the
input voltage drops below a pre-determined voltage.
The input voltage must be typically 35 V for the
converter to turn on. Once the converter has been
turned on, it will shut off when the input voltage
drops typically below 33 V. This feature is beneficial
in preventing deep discharging of batteries used in
UL60950 and EN60950. Basic Insulation is provided
between input and output.
The converters have no internal fuse. If required, the
external fuse needs to be provided to protect the
converter from catastrophic failure. Refer to the
“Input Fuse Selection for DC/DC converters”
application note on www.power-one-com for proper
selection of the input fuse. Both input traces and the
chassis ground trace (if applicable) must be capable
of conducting a current of 1.5 times the value of the
fuse without opening. The fuse must not be placed
in the grounded input line.
telecom applications.
Abnormal and component
failure tests were
Output Overcurrent Protection (OCP)
The converter is protected against overcurrent or
short circuit conditions. Upon sensing an overcurrent
condition, the converter will switch to constant
current operation and thereby begin to reduce output
voltage. During short circuit, when the output voltage
drops significantly below 50% its nominal value, the
converter will shut down.
Once the converter has shut down, it will attempt to
restart nominally every 200 ms with a very low duty
cycle. The attempted restart will continue indefinitely
until the overload or short circuit conditions are
conducted with the input protected by a 20A fuse. If
a fuse rated greater than a 20A is used, additional
testing may be required. To protect a group of
converters with a single fuse, the rating can be
increased from the recommended value 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,
removed.
Information technology equipment
-
Radio
Once the output current is brought back into its
specified range, the converter automatically exits the
hiccup mode and continues normal operation.
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.
Overtemperature Protection (OTP)
disturbance characteristics-Limits and methods of
measurement.
An effective internal LC differential filter significantly
reduces input reflected ripple current, and improves
EMC.
With the addition of a simple external filter, all
versions of the SSQE48T20033 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.
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
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
ZD-02087 Rev. 2.0
www.power-one.com
Page 6 of 12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SSQE48T25012-NAANG | 制造商:Power-One 功能描述:DC-DC CONVERTER 36-75 VDC INPUT 1.2 VDC 25 A OUTPUT |
| SSQE48T25012-NAAOG | 制造商:Power-One 功能描述: |
| SSQE48T25012-NAB0G | 制造商:Power-One 功能描述:DCDC - Bulk |
| SSQE48T25012-NABNG | 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: |
| SSQE48T25012-NAC0G | 制造商:Power-One 功能描述:- Bulk |
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