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参数资料
| 型号： | PKU4104BPIP/B |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 103.75 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-5 |
| 文件页数： | 4/18页 |
| 文件大小： | 1120K |
| 代理商： | PKU4104BPIP/B |
Ericsson Internal
PRODUCT SPECIFICATION
2 (4)
Prepared (also subject responsible if other)
No.
EAB/FJB/GKJ Pontus Melchert
3/1301-BMR 654 Uen
Approved
Checked
Date
Rev
Reference
EAB/FJB/GKF (Natalie Johansson)
See § 1
2009-03-03
D
Operating information
Input Voltage
The input voltage range 36 to 75 Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for normal
input voltage range in –48 and –60 Vdc systems, -40.5 to -
57.0 V and –50.0 to -72 V respectively.
The absolute maximum continuous input voltage is 80 Vdc.
Turn-off Input Voltage
The DC/DC converters monitor the input voltage and will turn
on and turn off at predetermined levels.
The minimum hysteresis between turn on and turn off input
voltage is 1 V.
Remote Control (RC)
The products are fitted with a
remote control function referenced
to the primary negative input
connection (- In), with negative and
positive logic options available.
The RC function allows the
converter to be turned on/off by an
external device like a
semiconductor or mechanical
switch. The RC pin has an internal
pull up resistor to + In.
The maximum required sink current is 0.4 mA. When the RC
pin is left open, the voltage generated on the RC pin is max
5 V. The maximum allowable leakage current of the switch is
50 μA. With “negative logic” the converter will turn on when
the input voltage is applied with the RC connected to the - In.
Turn off is achieved by leaving the RC pin open, or connected
to a voltage higher than 5 V referenced to –In.
The second option is “positive logic” remote control, which can
be ordered by adding the suffix “P” to the end of the part
number. The converter will turn on when the input voltage is
applied with the RC pin open. Turn off is achieved by
connecting the RC pin to the - In. To ensure safe turn off the
voltage difference between RC pin and the - In pin shall be
less than 1 V. The converter will restart automatically when
this connection is opened.
Input and Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC converter. It is
important that the input source has low characteristic
impedance. The converters are designed for stable operation
without external capacitors connected to the output. The
performance in some applications can be enhanced by
addition of external capacitance as described under External
Decoupling Capacitors. If the input voltage source contains
significant inductance, the addition of a 100 F capacitor
across the input of the converter will ensure stable operation.
The capacitor is not required when powering the DC/DC
converter from an input source with an inductance below
10 H.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoupling capacitors at the load.
The most effective technique is to locate low ESR ceramic
and electrolytic capacitors as close to the load as possible,
using several parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load. It is equally important to use low resistance and low
inductance PCB layouts and cabling.
For further information please contact your local Ericsson
Power Modules representative.
Parallel Operation
Two converters may be paralleled for redundancy (1+1) if the
total power is equal or less than POmax for one unit. To
secure the function o-ring diodes may be used.
Pre-bias Start-up
These products has pre-bias start up functionality and will not
sink current during start up if a pre-bias source is present at
the output terminal up to the min-value of output voltage
tolerance band, i.e 4.5 V for a 5 V version and 10.8 V for a 12
V version. Nor will there be any under or over shoot.
See Design Note 026 for detailed information.
Over Temperature Protection (OTP)
The converters are protected from thermal overload by an
internal over temperature shutdown circuit.
When Tref as defined in thermal consideration section
exceeds 135°C the converter will shut down. The DC/DC
converter will resume normal operation automatically when the
temperature has dropped approx 22°C below the temperature
threshold.
Over Voltage Protection (OVP)
The converters have output over voltage protection that will
clamp the output voltage to a continous fixed level. After
removal of the over voltage condition the converter will
resume to normal operation automatically.
Over Current Protection (OCP)
The converters include current limiting circuitry for protection
at continuous overload.
The output voltage will decrease towards zero for output
currents in excess of max output current (max IO). The
DC/DC converter will resume normal operation after removal
of the overload. The load distribution should be designed for
the maximum output short circuit current specified.
E
PKU 4000B PI series
Intermediate Bus Converters
Input 36-75 V, Output up to 20 A / 100 W
EN/LZT 146 376 R3B July 2009
Ericsson AB
Technical Specication
12
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| PKU4104BSI | 功能描述:DC/DC转换器 120W 12V OUT 10A 27.9x22.8x8.3 mm 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: |
| PKU4104CPI | 功能描述:DC/DC转换器 100W 36-75Vin 12V 8.3A 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: |
| PKU4104CSI | 功能描述:DC/DC转换器 100W 36-75Vin 12V 8.3A SMT 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: |
| PKU4105CPI | 功能描述:DC/DC转换器 100W 36-75Vin 5V 20A 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: |
| PKU4105CPI/B | 制造商:Ericsson 功能描述: |
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