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参数资料
| 型号： | PKJ4216NPIT |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 250 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT |
| 文件页数： | 3/15页 |
| 文件大小： | 392K |
| 代理商： | PKJ4216NPIT |
11
EN/LZT 146 094 R1B Ericsson Power Modules, May 2005
PKJ 4216N PIT Datasheet
Operating Information
Input Voltage
The input voltage range 35…75Vdc meets the requirements
of the European Telecom Standard ETS 300 132-2 for
normal input voltage range in –48V and –60V DC systems,
-40.5…-57.0V and –50.0…-72V respectively. At input
voltages exceeding 75V, the power loss will be higher than
at normal input voltage and TPcb must be limited to absolute
max +110°C. The absolute maximum continuous input
voltage is 80Vdc.
Turn-Off Input Voltage
The PKJ 4216N PIT 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 where the turn on input voltage is the highest.
Output Voltage Adjust (Vadj)
All PKJ 4216N PIT DC/DC converters have an Output Volt-
age 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 correspond-
ingly. 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.
Remote Control (RC)
All PKJ 4216N PIT DC/DC converters have remote sense
that can be used to compensate for moderate amounts of
resistance in the distribution system and allow for voltage
regulation at the load or other selected point. The remote
sense lines will carry very little current and do not need a
large cross sectional area. However, the sense lines on the
PCB should be located close to a ground trace or ground
plane. In a discrete wiring situation, the use of twisted
pair wires or other technique to reduce noise susceptibil-
ity is highly recommended. The remote sense circuitry will
compensate for up to 10% voltage drop between the sense
voltage and the voltage at the output pins. The output volt-
age and the remote sense voltage offset must be less than
the minimum over voltage trip point. If the remote sense is
not needed the –Sense should be connected to –Out and
+Sense should be connected to +Out.
Remote Sense
Circuit conguration for output voltage adjust
+Out
-Out
+Sense
Vadj
-Sense
Load
Radj
Decrease
Load
Increase
+Out
-Out
+Sense
Vadj
-Sense
The PKJ 4216N PIT DC/DC
converters have a remote control
function referenced to the primary
side (- In), with negative logic. 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 needed
maximum sink current is 1mA. When the RC pin is left open,
the voltage generated on the RC pin is 3.5 - 6.0 V. The
maximum allowable leakage current of the switch is 50 A.
The converter is provided with “negative logic” remote
control and the converter will be off until the RC pin is
connected to the - In. To turn on the converter the voltage
between RC pin and - In should be less than 1V. To turn off
the converter the RC pin should be left open, or connected
to a voltage higher than 13 V referenced to - In. In situations
where it is desired to have the converter to power up
automatically without the need for control signals or a
switch, the RC pin can be wired directly to - In.
Circuit conguration
for RC function
+In
RC
-In
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| PKJ4216PI | 功能描述:DC/DC转换器 234W 28.2V 8.3A 36-75Vin 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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| PKJ4316APIM | 制造商:Ericsson 功能描述:DC-DC CONVERTER - Bulk |
| 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: |
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