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參數(shù)資料
| 型號： | PKD4218LASI |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 24.2 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, SMD-24 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 570K |
| 代理商： | PKD4218LASI |
Ericsson Internal
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
HF/MPM/BY/P Anders Wgmark
3/1301-BMR 622 4510/81 Uen
Approved
Checked
Date
Rev
Reference
MPM/BY (Johan kerblad)
(MICMALE)
2006-04-11
A
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 89 % = 0.89
2. Find the thermal resistance (Rth) in the Thermal Resistance
graph found in the Output section for each model.
Calculate the temperature increase (T).
T = Rth x Pd
3. Max allowed ambient temperature is:
Max Tref - T.
E.g PKD 4510 ASI at 1m/s:
1. ((
) -
1) × 49.5 W = 5.5 W
2. 5.5 W × 4.9°C/W = 27.0°C
3. 110 °C - 27.0°C = max ambient temperature is 83°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
Connections
Pin
Designation
Function
2
+ In
Positive input
3
- In
Negative input
5
RC
Remote control pin
6
RC logic
Select pin for neg/pos RC1)
15
+ Sen
Positive remote sense
16
Vadj
Output voltage adjust
17
- Sen
Negative remote sense
18-20
- Out
Negative output
21-23
+ Out
Positive output
1,12,13,24
Case connection2)
4,7-11,14
NC
Not connected
1) Connect — In for negative logic or leave open for positive
logic on RC pin.
2) Case is floating and may be connected either to +Vin,-
Vin,+Vout or —Vout to optimize EMI performance.
1
0.90
E
PKD 4000 ASI series
DC/DC converters, Input 36-75 V, Output 20 A/50 W
EN/LZT 146 346 R1A April 2006
Ericsson Power Modules AB
Technical Specication
14
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PKD4510ESI | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| PKD4218HESPBI | 1-OUTPUT 21 W DC-DC REG PWR SUPPLY MODULE |
| PKD4510ESPBI | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| PKD4218LESPBI | 1-OUTPUT 24 W DC-DC REG PWR SUPPLY MODULE |
| PKD4218HESI | 1-OUTPUT 21 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PKD4218LESI | 功能描述:DC/DC轉(zhuǎn)換器 1.2 Vdc 20A Iso Input 36-75V 24W 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: |
| PKD4218SI | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 1.8V 14A 25.2W - Bulk |
| PKD4218SIOA | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 1.5V 14A 21W - Bulk |
| PKD4311SI | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 5V 6A 30W - Bulk |
| PKD4319SI | 制造商:Ericsson 功能描述:DC/DC PS SGL-OUT 2.5V 12A 30W - Bulk |
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