AL9901 Universal High Voltage LED Drivers

Diode Inc. AL9901 Universal High Voltage LED Drivers provide an efficient solution for offline, high-brightness LED lamps. They have an internal MOSFET that allows switching frequencies up to 300kHz. The switching frequency is determined by an external single resistor. The AL9901 drivers topology creates a constant current through the LEDs providing constant light output. The output current is programmed by one external resistor.