Datasheet > AN1149-4

AN1149-4

更新时间： 2024-10-29 03:18:47

品牌	Logo	应用领域
亮锐 - LUMILEDS		/
页数	文件大小	规格书
14页	267K
描述
Thermal Management Considerations for SuperFlux LEDs

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AN1149-4 数据手册

application brief AB20ꢀ4

replaces AN1149ꢀ4

Thermal Management

Considerations for SuperFlux LEDs

Thermal management is critical in the design of LED signal lamps because temperature affects

LED performance and reliability. The following section details the effects of temperature on

LEDs. In addition, thermal measurement techniques of LED signal lamps and recommended

design practices for proper thermal management are covered.

Table of Contents

Importance of Thermal Management

for High-Power LED Assemblies

Temperature Induced Effects on LED Light Output

Change in Dominant Wavelength (Color) as a Function

Of Junction Temperature

TemperatureꢀInduced Failures of LEDs

Thermal Modeling of LED Assemblies

Thermal Resistance of LED Automotive Signal Lamps

JunctionꢀtoꢀAmbient Thermal Resistance Measurement Procedure

JunctionꢀtoꢀAmbient Thermal Resistance Measurement

Estimating JunctionꢀtoꢀAmbient Thermal Resistance

Evaluating Junction Temperature and Forward Current

Light Output and Forward Current

Derating Example Cases

Recommended Design Practices for Proper Thermal Management

PCB Design

Maximum Metallization

LED Spacing

Lamp Housing Design and Mounting of the LED Array

Circuit Design

Current Control

Power Dissipation

“Switching” Power Supplies

Ambient Temperature Compensation

Appendix 4A

Alternate JunctionꢀtoꢀAmbient Thermal Resistance

Measurement Procedure

12 3 4 5 6 7...14

中文翻译

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与AN1149-4相关器件

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