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参数资料
| 型号： | SSQE48T25015-PABNG |
| 厂商： | Power-One |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | DC/DC SIXTEENTH BRICK |
| 标准包装： | 98 |
| 系列： | * |
DATA SHEET
3
3.1
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 34 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 32 V. This feature is beneficial in preventing deep discharging of batteries used in
telecom applications.
3.2
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 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 removed.
Once the output current is brought back into its specified range, the converter automatically exits the hiccup mode and
continues normal operation.
3.3
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.
3.4
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 will automatically restart
after it has cooled to a safe operating temperature.
3.5
SAFETY REQUIREMENTS
The converters meet North American and International safety regulatory requirements per 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 t o 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.
Abnormal and component failure tests were conducted with the input protected by an external UL-listed fuse, rated 20A. If a
fuse rated greater than 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.
3.6
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, and improves EMC.
With the addition of a simple external filter, all versions of the SSQE48T25015 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.
SSQE48T25015 DC-DC Converter
6
www.power-one.com
相关PDF资料 |
PDF描述 |
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| SSQE48T25018-PABNG | DC/DC SIXTEENTH BRICK |
| SSQE48T25025-PABNG | DC/DC SIXTEENTH BRICK |
| SSQL48T20033-NAABG | CONV DC-DC 3.3V 20A 1/16 BRICK |
| ST5ER504 | TRIMMER 500K OHM 0.25W SMD |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SSQE48T25018-NAANG | 制造商:Power-One 功能描述:Module DC-DC 1-OUT 1.8V 25A 8-Pin 1/16-Brick |
| SSQE48T25018-NAB0G | 制造商:Power-One 功能描述:DCDC - Bulk |
| SSQE48T25018-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: |
| SSQE48T25018-PAA0 | 制造商:Power-One 功能描述:- Bulk |
| SSQE48T25018-PAAN | 制造商:Power-One 功能描述:Module DC-DC 1-OUT 1.8V 25A 8-Pin 1/16-Brick |
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