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參數資料
| 型號： | PKM4119DPI |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, QUARTER BRICK, 8 PIN |
| 文件頁數： | 19/30頁 |
| 文件大小： | 1800K |
| 代理商： | PKM4119DPI |
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ESKEVIN
3/1301-BMR 637 02 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EYINGJI
2007-12-10
B
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.
Ambient Temperature Calculation
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 4110D PINB 53v full load at 2m/s:
1. ((
) -
1) × 115 W = 14.2 W
2. 14.2 W × 4°C/W = 56°C
3. 110 °C - 56°C = max ambient temperature is 54°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.
Connections
Top View
Pin
Designation
Function
1
+In
Positive input
2
RC
Remote control
3
- In
Negative input
4
- Out
Negative output
5
- Sen
Negative remote sense
6
Vadj
Output voltage adjust
7
+ Sen
Positive remote sense
8
+ Out
Positive output
1
0.89
23
E
PKM 4000D PINB Series
DC/DC converters, Input 36-75 V, Output 40 A/132 W
EN/LZT 146 306 R4A July 2008
Ericsson Power Modules AB
Technical Specification
26
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PKM4119DPINB | 功能描述:DC/DC轉換器 2.5 Vdc 40A Iso Input 36-75V 100W RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量: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）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PKM4202NG PI | 制造商:Ericsson 功能描述: |
| PKM4202NHPILB | 制造商:Ericsson 功能描述:QUARTER-BRICK SERIES, ISOLATED, THRU-HOLE, BUSS CONVERTER - Bulk |
| PKM4204BPI | 功能描述:DC/DC轉換器 12 Vdc 25A Iso Input 36-75V 290W RoHS:否 制造商:Murata 產品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標稱）: 輸出端數量: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）: 安裝風格:SMD/SMT 封裝 / 箱體尺寸: |
| PKM4204BPIHS | 制造商:Ericsson 功能描述:PKM-B QUARTER-BRICK SERIES, ISOLATED, THRU-HOLE, BUSS CONVER - Bulk |
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