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参数资料
| 型号： | PKB4711PIPNBM |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, PACKAGE-8 |
| 文件页数： | 32/42页 |
| 文件大小： | 2514K |
| 代理商： | PKB4711PIPNBM |
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Operating Information
Input Voltage
The input voltage range 36…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 PKB 4000 Series 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 PKB 4000 Series DC/DC converters 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 corre-
spondingly. 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 PKB 4000 Series 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 susceptibility 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 voltage 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 configuration for output voltage adjust
+Out
-Out
+Sense
Vadj
-Sense
Load
Radj
Decrease
Load
Increase
+Out
-Out
+Sense
Vadj
-Sense
The PKB 4000 Series DC/DC converters
have a remote control function referenced
to the primary side (- 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 needed maximum sink current
is 1mA . When the RC pin is left open,
the voltage generated on the RC pin is 12 - 15 V. The maximum
allowable leakage current of the switch is 20 A .
The standard 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 .
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 .
Circuit configuration
for RC function
+In
RC
-In
EN/LZT 146 033 R9A Ericsson Power Modules, March 2007
PKB 4000 Datasheet
38
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PKB4711SINB | 功能描述:DC/DC转换器 75W 36-75Vin 5V 15A 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: |
| PKB4713PINB | 功能描述:DC/DC转换器 12 Vdc 6A Iso Input 36-75V 72W 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: |
| PKB4713PINBLA | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 12V 6A 72W - Bulk 制造商:Ericsson 功能描述:DC/DC POWER MODULE |
| PKB4713PINBMLA | 制造商:Ericsson 功能描述:12V, 6A / 72W PKB SERIES EIGHTH BRICK |
| PKB4713SINB | 功能描述:DC/DC转换器 72W 36-75Vin 12V 6A 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: |
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