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参数资料
| 型号： | PMC8518TSN |
| 厂商： | ERICSSON POWER MODULES AB |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-6 |
| 文件页数： | 24/34页 |
| 文件大小： | 951K |
| 代理商： | PMC8518TSN |
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Ericsson Internal
PRODUCT SPECIFICATION
5 (6)
Prepared (also subject responsible if other)
No.
ESKEVIN
3/1301-BMR 619 8518 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
ECHWANG
2007-8-16
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
Connections
TOP VIEW
Pin
Designation
Function
1
RC
Remote Control
2
+In
Positive input
3
Gnd
Ground
4
+Out
Positive output
5
Vadj
External output adjust
6
+Sense
Positive remote sense
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 regulator. E.g 88 % = 0.88
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 5 V output at 1 m/s, full load, 12 Vin :
1. ((
) -
1) × 50 W = 2.74 W
2. 2.74 W × 10.0°C/W = 27.4°C
3. 115 °C — 27.4°C = max ambient temperature is 87.6°C
The actual temperature will be dependent on several factors
such as the PCB size, number of layers and direction of
airflow.
1
0.948
E
PMC 8518 series
POL regulator, Input 12 V, Output 10 A/50 W
EN/LZT 146 063 R3A Aug 2007
Ericsson Power Modules AB
Technical Specication
30
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相关代理商/技术参数 |
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| PMC85XP,115 | 制造商:NXP Semiconductors 功能描述:P-Channel MOSFET with Biased NPN transistor 6-Pin HUSON EP T/R 制造商:NXP Semiconductors 功能描述:PMC85XP/HUSON6/REEL7// - Tape and Reel 制造商:NXP Semiconductors 功能描述:MOSFET P-CH 30V HUSON6 制造商:NXP Semiconductors 功能描述:30V P-channel MOSFET |
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