The RD9910 is a PWM high-efficiency LED
Driver control IC. It allows efficient operation
Of High Brightness (HB) LEDs from voltage
Sources ranging from 8V up to 600V. The
RD9910 provides constant off-time PWM
Current control operation. The constant
Off-time can be programmed using a
External resistor. The LED string is driven at
Constant current rather than constant
Voltage, thus providing constant light output
And enhanced reliability. The output current
Can be programmed between a few
Milliamps and up to more than 1.0A.
The RD9910 also provides linear and PWM
Dimming to adjust the LED brightness.