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參數(shù)資料
| 型號： | PKY4716PIM |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 700 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, BRICK PACKAGE-16 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大?。?/td> | 1155K |
| 代理商： | PKY4716PIM |
Ericsson Internal
PRODUCT SPECIFICATION
3 (6)
Prepared (also subject responsible if other)
No.
ESECZHW
3/1301- BMR 638/1 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
ECHWANG
2008-10-9
C
Operating information continued
Parallel Operation
Two or more products may be paralleled for redundancy or
increased output power. External active load sharing circuit
are recommended to provide the maximum balanced current
sharing.
Remote Sense
The products have remote sense that can be used to
compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PCB ground layer to reduce noise susceptibility. The remote
sense circuitry will compensate for up to 10% voltage drop
between output pins and the point of load.
If the remote sense is not needed +Sense should be
connected to +Out and -Sense should be connected to -Out.
Over Temperature Protection (OTP)
The product is protected from thermal overload by an internal
Over Temperature Protection circuit (OTP). When the PCB
temperature (TC reference point) exceeds the OTP T
threshold value, the output voltage will be gradually
decreased. This will decrease the power loss inside the
DC/DC power module and protect the module from hazardous
temperatures.
Over Voltage Protection (OVP)
The module includes an output Over Voltage Protection (OVP)
function. In the unlikely event of an output over voltage
condition, the OVP circuit will shut down the output voltage.
The module will be latched in “Off” state unless either the input
voltage or RC input is cycled (switched Off and On again).
Over Current Protection (OCP)
The moduleinclude current limiting circuitry for protection at
continuous overload.
In case of overload, the output voltage will significantly
decrease. The converter will resume normal operation after
removal of the overload. The load distribution should be
designed for the maximum specified output short circuit
current.
Pre-bias Start-up
The module is able to start-up properly under pre-bias output
condition. During the start-up, the module does not sink
current from an external pre-bias source present at the output
terminals.
Power Good
“Power Good” function is provided. It is a “negative logic” open
collector output which can drive to “l(fā)ow” an external circuit
when the module operates normally.
The PG output will turn level “high” during fault conditions
(e.g. over temperature or over voltage) or when the output is
turned off with the remote control.
Auxiliary output voltage (AUX)
The module provides a power source referred to – sense
terminal. It is intended to be used as a power source for
external circuits, e.g. remote control. The auxiliary output
voltage is active whenever an input voltage in range between
from 35V to 80V is provided.
The nominal auxiliary output voltage is 10V. Maximum
allowed load is 50mA.The auxiliary output source is not short
circuit protected. If it is overloaded, the main converter will
be switched off.
An example of a 5V/45mA power supply driven by the
auxiliary output voltage is given in the figure below.
Thermal Consideration
E
PKY 4000 PI series
DC/DC converters, Input 36-75 V, Output up to 25 A/700 W
EN/LZT 146 380 R2A Oct 2008
Ericsson Power Modules AB
Technical Specication
15
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