AB20-4 参数 Datasheet PDF下载

Application Brief AB20 1

Using SuperFlux LEDs in

Automotive Signal Lamps

Introduction

Lumileds Lighting SuperFlux LEDs are specifically designed for automotive

signal lamp applications and are designed to operate at high DC forward

currents reliably over the automotive temperature range. Each SuperFlux

LED generates several lumens of luminous flux. In addition, SuperFlux LEDs

have a low thermal resistance package, which reduces the temperature rise

within the LED signal lamp. This allows for higher drive currents and

reduces the loss in optical flux due to self heating. SuperFlux LEDs allow

the designer to significantly reduce the number of LEDs needed to provide

the required light output.

The colors of SuperFlux LEDs are designed to be compatible with SAE and

ECE color requirements. SuperFlux LEDs are available in an amber color

with dominant wavelengths of 592 and 594 nm. Red orange and red

SuperFlux LEDs are available in three colors with dominant wavelengths of

618, 620, and 630 nm. The red orange color is designed to match the

color of filtered incandescent bulbs.

Index

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Signal Lamp Design Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Estimating the Number of SuperFlux LEDs Needed For a Signal Lamp . . . . . . . . . . . . . . . .5

Calculating the Minimum Number of LEDs Required . . . . . . . . . . . . . . . . . . . . . . . . . . .13

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15