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参数资料
| 型号： | PKM4402NGPIHS |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 480 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, QUARTER BRICK PACKAGE-7 |
| 文件页数： | 6/19页 |
| 文件大小： | 1529K |
| 代理商： | PKM4402NGPIHS |
Ericsson Internal
PRODUCT SPECIFICATION
4 (6)
Prepared (also subject responsible if other)
No.
ESECZHW
3/1301-BMR 647/2 Uen
Approved
Checked
Date
Rev
Reference
SEC/D/V (Betty Wu)
EJANLLI
2009-3-24
A
Thermal Consideration
General
The DC/DC converters are designed to operate in different
thermal environments and sufficient cooling must be provided
to ensure reliable operation.
Cooling is achieved mainly by conduction, from the pins to the
host board, and convection, which is dependant on the airflow
across the DC/DC converter. Increased airflow enhances the
cooling of the DC/DC converter.
The Output Current Derating graph found in the Output section
for each model provides the available output current vs.
ambient air temperature and air velocity at Vin = 48 V.
The DC/DC converter is tested on a 254 x 254 mm,
35 m (1 oz), 16-layer test board mounted vertically in a wind
tunnel with a cross-section of 305 x 305 mm.
Proper cooling of the DC/DC converter can be verified by
measuring the temperature at position P1. The temperature
should not exceed the max value provided in the table below.
Note that the max value is the absolute maximum rating
(non destruction) and that the electrical Output data is
guaranteed up to Tref +100°C.
See document “Design Note 019” on the homepage for
detailed information.
Position
Device
Designation
max value
P1
PCB
Tref
+125 C
P2
Baseplate
Tbaseplate
+100 C
Open frame
Base plate option
Definition of reference temperature (Tref)
The reference temperature is used to monitor the temperature
limits of the product. Temperatures above maximum Tref are
not allowed and may cause degradation or permanent damage
to the product. Tref is also used to define the temperature
range for normal operating conditions.
Tref is defined by the design and used to guarantee safety
margins, proper operation and high reliability of the module.
E
PKM 4402NG PIDP
IBC 5:1 Ratio, Input 38-55 V, Output 63A / 480W
EN/LZT 146 405 R1B June 2009
Ericsson AB
Technical Specification
14
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