邹静(@) GBU LED Lamps and Systems June 2010 General Guide to the Heatsink Design for Fortimo modules 2 Nice to know: el timo 网上有: Product leaflet; Design-in guide; Optical files; Catalog; Photometric files Certificates 3D file such as CAD file 3 LED 模组会因为没有接散热器,过度受热而坏掉吗? 4 LED 模组会因为没有接散热器,过度受热而坏掉吗? 不会, 我们的模组有高温保护功能,一旦模组温度升到一定值,驱动器的输出电流会自动减小,这会阻止模组温度继续升高。 LED Performance issue? Tj必须保持在特定的温度下,以免颜色飘移, 或者光通的改变。 5 Why Bother? LED Performance issue? Tj必须保持在特定的温度下,以免颜色飘移, 或者光通的改变。
对于模组来讲,只要 Tc保持在< 650C or 550C, lifetime(B50L70)会在 50000个小时左右。LLM模组由于具有CLO,所以lifetime不使用L70。 7 Tc and Lifetime 8 Special features Fortimo LED linear 9 多少的功率(百分比)变成了热? 10 How much power is turned into heat? 一般来说, 有 remote phosphor 的模组, 比如: 2/3 的模组消耗的功率(系统功率–驱动器的功率)转变成了热。