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參數(shù)資料
| 型號： | PKY4616PI |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 600 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-16 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 618K |
| 代理商： | PKY4616PI |
Ericsson Internal
PRODUCT SPECIFICATION
4 (6)
Prepared (also subject responsible if other)
No.
MPM//BM/ Andrzej Wojtasik
3/1301-BMR 638/1 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EUSSVEN
2007-08-15
B
Thermal Consideration
General
The PKY converters are designed to operate in different
thermal environments and sufficient cooling must be provided
to ensure reliable operation.
Cooling of the PKY series power modules is achieved mainly
by conduction from the baseplate to a heatsink (“cold wall”).
If the baseplate temperature is kept below +100°C, the
module can deliver full output power at ambient temperature
up to +85°C without forced airflow cooling.
The PKY series power modules can also operate without a
heatsink but sufficient airflow must be provided. 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 μm (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 positions P1…P5. 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 +100°C.
See Design Note 019 for further information.
Position
Device
Designation
max value
P1
PCB
125 C
P2
Transformer
M1
120 C
P3
Baseplate
Tref
100 C
P4
Diode
D15
120 C
P5
MOSFET
T16
120 C
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.
Calculation of the Maximum Ambient Temperature
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 95 % = 0.95
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. PKY 4616 PI at 1m/s:
1. ((
) -
1) × 600 W = 31.58 W
2. 31.58 W × 1.9°C/W = 60°C
3. 100 °C - 60°C = max ambient temperature is 40°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
The above calculations of the maximum ambient temperature
are based on the thermal resistance of the PKY module
without a heatsink.
1
0.95
E
PKY 4000 PI series
DC/DC converters, Input 36-75 V, Output up to 25 A/700 W
EN/LZT 146 380 R1E September 2007
Ericsson Power Modules AB
Technical Specication
14
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PKY4616PIM | 功能描述:DC/DC轉(zhuǎn)換器 28 Vdc 21.5A Iso Input 36-75V 600W 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: |
| PKY4617PI | 功能描述:DC/DC轉(zhuǎn)換器 700W 28V 28A 36-75Vin 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: |
| PKY4716PI | 制造商:Ericsson 功能描述:PKY SERIES FULL BRICK - Trays |
| PKY4716PIM | 功能描述:DC/DC轉(zhuǎn)換器 28Vdc 28A Isolated Input 36-75V 700W 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: |
| PKZ 0001 | 制造商:Ericsson 功能描述: |
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