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參數(shù)資料
| 型號： | PKM4110CPIPNBMLA |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 204 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, QUARTER BRICK, 10 PIN |
| 文件頁數(shù)： | 7/21頁 |
| 文件大?。?/td> | 2405K |
| 代理商： | PKM4110CPIPNBMLA |
Ericsson Internal
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
MICOSPE
3/1301 BMR 637 01
Approved
Checked
Date
Rev
Reference
MPM/BK [Andréas Svensson]
2006-01-23
A
Thermal Consideration
General
Ambient Temperature Calculation
The PKM 4000Cseries DC/DC converters are designed to
operate in a variety of thermal environments, however
sufficient cooling should be provided to help ensure reliable
operation. Heat is removed by conduction, convection and
radiation to the surrounding environment. Increased airflow
enhances the heat transfer via convection. The available load
current vs. ambient air temperature and airflow at Vin =53 V
for each model is according to the information given under
the output section. The test is done in a wind tunnel with a
cross section of 305 x 305 mm, the DC/DC converter
vertically mounted on a 16 layer Pcb with a size of 254 x 254
mm, each layer with 35 μm (1 oz) copper. Proper cooling can
be verified by measuring the temperature of selected devices.
Peak temperature can occur at positions P1 - P4. The
temperature at these positions should not exceed the
recommended max values.
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.
Position
Device
Designation
max value
P1
Pcb
Tref
110 C
P2
Mosfet
Tsurface
120 C
P3
Mosfet
Tsurface
120 C
P4
Transformer
Tsurface
130 C
By using the thermal resistance the maximum allowed
ambient temperature can be calculated.
1. The power loss is calculated by using the formula
((1/η) - 1) × output power = power losses (Pd).
η = efficiency of converter. E.g 90 % = 0.90
2. Find the thermal resistance (Rth) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (ΔT).
ΔT = Rth x Pd
3. Max allowed ambient temperature is:
Max Tref - ΔT.
E.g PKM 4110C PINB at 1m/s:
1. ((
) -
1) × 115 W = 18.3 W
2. 18.3 W × 2.3°C/W = 42°C
3. 110 °C - 42°C = max ambient temperature is 68°C
The real temperature will be dependent on several factors, like
Pcb size and type, direction of airflow, air turbulence etc.
It is recommended to verify the temperature by testing.
1
0.90
E
PKM 4000C PINB series
DC/DC converters, Input 36-75 V, Output 80 A/204 W
EN/LZT 146 307 R2A March 2006
Ericsson Power Modules AB
Technical Specication
15
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PKM4110D | 制造商:ERICSSON 功能描述: |
| PKM4110DPINB | 功能描述:DC/DC轉(zhuǎn)換器 3.3 Vdc 35A Iso Input 36-75V 115W RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸: |
| PKM4110DPINBLA | 制造商:Ericsson 功能描述:DC-DC CONVERTER |
| PKM4110DPIOTNB | 制造商:Ericsson 功能描述:- Trays |
| PKM4111API | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 5V 22A 110W - Bulk |
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