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參數(shù)資料
| 型號： | PKB4418PIOANBLB |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 45 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, PACKAGE-8 |
| 文件頁數(shù)： | 32/43頁 |
| 文件大?。?/td> | 1656K |
| 代理商： | PKB4418PIOANBLB |
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Ericsson Internal
PRODUCT SPECIFICATION
4 (5)
Prepared (also subject responsible if other)
No.
EJUNGYA
3/1301-BMR 636 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
ESHUHAN
2008-1-11
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 % = 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 PKB 4711 SINB at 1m/s:
1. ((
) -
1) × 75 W = 9.26 W
2. 9.26 W × 6.3°C/W = 58.3°C
3. 120 °C — 58.3°C = max ambient temperature is 61.6°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
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
E
PKB 4000 series
DC/DC converters, Input 36-75 V, Output 30 A/90 W
EN/LZT 146 394 R4A Sep 2008
Ericsson Power Modules AB
Technical Specication
38
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PDF描述 |
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| PKD01BIEY | SPECIALTY ANALOG CIRCUIT, CDIP14 |
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| PKD01BIFP | SPECIALTY ANALOG CIRCUIT, PDIP14 |
| PKD01BIEP | SPECIALTY ANALOG CIRCUIT, PDIP14 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PKB4418SIOANB | 制造商:Ericsson 功能描述:- Trays |
| PKB4513PINBLC | 功能描述:DC/DC 開關控制器 DC/DC CONV in 36-60V output 12V 4A 48W RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| PKB4513PINBOVL | 制造商:Ericsson 功能描述: |
| PKB4513PINBOVLC | 制造商:Ericsson 功能描述:- Trays |
| PKB4519PINB | 制造商:ERIC 功能描述: |
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