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参数资料
| 型号： | PKJ4316IP |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 310.2 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, PACKAGE-9 |
| 文件页数： | 7/20页 |
| 文件大小： | 596K |
| 代理商： | PKJ4316IP |
Ericsson Internal
PRODUCT SPECIFICATION
2 (5)
Prepared (also subject responsible if other)
No.
EQUENXU
3/1301-BMR 630 03/7 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EZYPING
2006-12-19
B
Operating information
Input Voltage
The input voltage range 35 to 75Vdc 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.
At input voltages exceeding 75 V, the power loss will be
higher than at normal input voltage and T
ref must be limited to
absolute max +120°C. 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 1V.
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 1 mA. When the RC pin
is left open, the voltage generated on the RC pin is
3.5 — 6 V. 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 1V. The converter will restart automatically
when this connection is opened.
See Design Note 021 for detailed information.
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 input or 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 μF 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 μH.
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.
External decoupling capacitors will become part of the
control loop of the DC/DC converter and may affect the
stability margins. As a “rule of thumb”, 100 μF/A of output
current can be added without any additional analysis. The
ESR of the capacitors is a very important parameter. Power
Modules guarantee stable operation with a verified ESR value
of >10 mΩ across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
Output Voltage Adjust (Vadj)
The DC/DC converter have an Output Voltage
adjust pin (Vadj). This pin can be used to adjust the
output voltage above or below Output voltage initial setting.
When increasing the output voltage, the voltage at the output
pins (including any remote sense offset) must be kept below
the overvoltage trip point, to prevent the converter from
shut down. Also note that at increased output voltages the
maximum power rating of the converter remains the same,
and the output current capability will decrease
correspondingly.
To decrease the output voltage the resistor should be
connected between Vadj pin and —Sense pin. To increase
the voltage the resistor should be connected between Vadj
pin and +Sense pin. The resistor value of the Output voltage
adjust function is according to information given under the
output section.
E
PKJ 4000 series RFPA products
DC/DC converters, Input 35-75 V, Output 12.4 A/350 W
EN/LZT 146 367 R1A Febuary 2007
Ericsson Power Modules AB
Technical Specication
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PKJ4316PI | 功能描述:DC/DC转换器 28 Vdc 11A Iso Input 36-75V 310W 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: |
| PKJ4316PILA | 制造商:Ericsson 功能描述:DC - DC CONVERTER |
| PKJ4316PIM | 制造商:Ericsson 功能描述:28V, 11A / 310W - Bulk |
| PKJ4318PIT | 制造商:Ericsson 功能描述:DC/DC POWER MODULE |
| PKJ4418LEPI | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 1.2V 40A 48W - Bulk |
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