On Semi NCV78763单片高效智能功率LED驱动方案
On Semi公司的NCV78763是单片高效智能功率镇流器和双路LED驱动器,设计用于汽车照明如远光灯,近光灯,白天行车灯DRL),转弯灯,雾灯,弯道辅助照明角灯等.LED串电压高达60V,每个输出6A,是一个完整的解决方案.本文介绍了NCV78763主要特性,框图, 典型应用电路图,两相,三相应用电路,以及评估板NV787630R1DAGEVB电路图,材料清单.
The NCV78763 is a single−chip and high efficient smart Power ballast and Dual LED DRIVER designed for automotive front lighting applications like high beam, low beam, daytime running light (DRL), turn indicator, fog light, static cornering and so on.
The NCV78763 is a best fit for high current LEDs and provides a complete solution to drive two strings up to 60 V, by means of two internal independent buck switch channel outputs, with a minimum of external components. For each individual LED channel, the output current and voltage can be customized according to the application requirements. An on−chip diagnostic feature for automotive front lighting is provided, easing the safety monitoring from the microcontroller. The device integrates a current−mode voltage booster controller, realizing a unique input current filter with a limited BOM.
..
