NCV7691RCLEVB 评估板演示了具有多达 8 个 LED 灯串的后组合/日光行车灯 (RCL/DRL) 解决方案。该板可在宽电源电压范围内通过由三个红色或两个白色 LED 组成的每个板载 LED 串调节 100 mA(68 至 150 mA)的
恒定电流。该板的设计旨在为有源组件提供良好的冷却,而无需额外成本。另外,可以在板的底侧安装散热器以提高板的热能力。如果 LED 短路或开路,电流源将被禁用,并且 ECU 诊断可能会检测到故障。板载 LED 可轻松更换为外部 LED
说明
-
NCV7691RCLEVB, Evaluation Board demonstrates rear combination/daylight running light (RCL/DRL) solution with up to eight LED string. The board regulates constant current of 100 mA (68 to 150 mA) through each onboard LED string consisting of three red or two white LEDs in the wide range of the supply voltage. The board is designed in order to provide good cooling of the active components with no extra cost. Additionally, a heat sink may be mounted on the bottom side of the board to improve the thermal capability of the board. In case of LEDs short or opening, the current sources are disabled and the fault may be detected by the ECU diagnostics. On-board LEDs may be easily replaced by external ones