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参数资料
| 型号： | BMR4532001/002 |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT, QUARTER-BRICK PACKAGE-14 |
| 文件页数： | 7/23页 |
| 文件大小： | 1001K |
| 代理商： | BMR4532001/002 |
Ericsson Internal
PRODUCT SPECIFICATION
4 (6)
Prepared (also subject responsible if other)
No.
EANDKUL
30/1301-BMR 453 Uen
Approved
Checked
Date
Rev
Reference
EAB/FJB/GKF (Natalie Johansson)
(MICJMAL)
2008-06-18
A
Thermal Consideration
General
The 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 converter. 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 DC/DC converter is tested on a 254 x 254 mm,
35 m (1 oz), 8-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 at
these positions should not exceed the max values 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 +90°C.
See Design Note 019 for further information.
Position
Device
Designation
max value
P1
Pcb
Tref
125 C
P2
Opto-coupler
-
95 C
Top view
Bottom view
Thermal Consideration continued
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
BMR 453
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
EN/LZT 146 395 R1B September 2008
Ericsson AB
Technical Specication
15
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