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參數(shù)資料
| 型號(hào)： | PKD4118SIOD |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 16.8 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁(yè)數(shù)： | 10/20頁(yè) |
| 文件大小： | 338K |
| 代理商： | PKD4118SIOD |
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EN/LZT 146 120 R2B Ericsson Power Modules AB, March 2003
Output voltage adjust (Vadj)1)
Output voltage, VO, can be adjusted by using an external
resistor. To decrease the output voltage the resistor should be
connected between pin 16 and pin 15 (+Sense). To increase the
output voltage the resistor should be connected between pin 16
and pin 17 (-Sense).
Please consult our application note AN 108D.
Sense leads1)
All PKD series DC/DC power modules 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 a current less than 50mA , and do not need a large cross
sectional area. However, the sense lines on a PCB should be lo-
cated close to a ground trace or ground plane. In a discrete wir-
ing situation, the usage of twisted pair wires or other technique
for reducing noise susceptibility is recommended.
The power module will compensate for up to 10% voltage drop
between the sensor voltage and the voltage at the power mod-
ule output pins. If the remote sense is not needed the -Sense
should be connected to –Out and +Sense should be connected
to +Out.
Over Temperature Protection (OTP)
The PKD DC/DC power modules are protected from thermal
over load by an internal over-temperature shutdown circuit.
When the case temperature exceeds +130°C ± 15°C the
converter will automatically shut down. The converter will
automatically restart when temperature is below +115°C.
Layout recommendation
The radiated EMI performance of the power module will be op-
timized by including a ground plane in the PCB area under the
module. This approach will return switching noise to ground as
directly as possible, with improvements to both emissions and
susceptibility. If one ground trace is used, it should be con-
nected to the input return. Alternatively, two ground traces
may be used, with the trace under the input side of the module
connected to input return and the trace under the output side
of the module connected to the output
return. Make sure to use appropriate safety isolation spac-
ing between these two return traces. The use of two traces as
described will provide the capability of routing the input noise
and output noise back to their respective returns.
Fig 1.
1) When using the output voltage adjust or the sense pins to increase
the output voltage, full positive adjust range, can only be guaranteed
above 40V input voltage.
Delivery Package Information
Trays
PKD series can be delivered in trays (designated by /B) on re-
quest, see gure 1 below. For more information, please contact
your local Ericsson sales ofce.
Specification
Material:
Polyprophylene (PP)
Max temperature:
125 °C
Max surface resistance:
105
/
Color:
Black
Capacity:
10 pcs/tray
Stacking pitch:
64,25 mm
Weight:
230g
Min. order quantity:
50 pcs (one box contains
5 full trays)
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