The driver’s current accuracy of ±5%, means it will meet the requirements of most general low voltage lighting applications and lead to an improvement in inter-lamp luminance matching in 3W LED lighting systems. The driver is up to 96% efficient and its output current is simple to set using a single external resistor.
Dimming control is via the application of either a DC voltage or PWM signal on the driver’s Control input, which also protects against any over-driving of the LED current. The AL8807’s 1000:1 PWM dimming ratio and dc dimming range from 16% to 100%, provide users with flexible and wide-ranging lamp brightness control.
It’s provided in the small footprint SOT25 package and will be soon available in the MSOP-8EP package.