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LED线性恒流IC广告灯箱景观照明VAS1085 VAS1085B是一款宽输入范围的恒流LED驱动器，为广告灯箱，景观照明等LED照明应用提供了经济高效的解决方案。对于大多数应用，VAS1085B只需要从SET到GND的一个电流设置电阻，一个陶瓷旁路电容从VIN到GND，不需要铝电容，肖特基二极管或电感。对于高电流应用，几个VAS1085B可以并联连接，以获得高功率输出。
VAS1085B is a wide input range constant current LED driver provides cost-effecTIve soluTIon for adverTIsing light boxes， landscape lighTIng and other LED illumination application. For most applications， VAS1085B only need one current setting resistor from SET to GND， and one ceramic bypass capacitor from VIN to GND， no aluminum capacitor， Schottky diode or inductor needed. For high current application， several VAS1085B can be connected in parallel to obtain high power output. VAS1085B make use of an external power resistor to reduce chip power dissipation when poor power supply is used. Meanwhile， the VAS1085B will automatically reduce linearly the output current when the die temperatures reached 120°C， this method avoid LED bar blinking. Over temperature protection is also be integrated. VAS1085B is available with DFN6L package.
