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參數(shù)資料
| 型號： | PKB4207LBPIPHSMLB/B |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 264 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-5 |
| 文件頁數(shù)： | 8/23頁 |
| 文件大小： | 2349K |
| 代理商： | PKB4207LBPIPHSMLB/B |
Ericsson Internal
PRODUCT SPECIFICATION
3 (5)
Prepared (also subject responsible if other)
No.
MICMALE
3/1301-BMR 658 Uen
Approved
Checked
Date
Rev
Reference
SEC/D Betty Wu
(EZHEWNG) 2009-12-16
PB3
Thermal Consideration
General
The products are designed to operate in different thermal
environments and sufficient cooling must be provided to
ensure reliable operation.
For products mounted on a PCB without a heat sink attached
cooling is achieved mainly by conduction, from the pins to the
host board, and convection, which is dependant on the airflow
across the product. Increased airflow enhances the cooling of
the 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 = 53 V.
The product 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 positions P1, P2, P3, P4 and
P5. The temperature at these positions should not exceed the
max values provided in the table below. The number of points
may vary with different thermal design and topology.
See Design Note 019 for detailed information.
Position
Description
Max value
P1
Reference point (
Tref)
125 C
P2
Transistor
125 C
P3
Optocoupler
100 C
P5
Reference point (
Tref)
125 C
P6
Transistor
125 C
P7
Base plate
105 C
Open frame
Base plate
E
PKB 4000B series
Intermediate Bus Converters
Input 36-75 V, Output up to 40 A / 252 W
EN/LZT 146 384 R3C January 2010
Ericsson AB
Technical Specication
16
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