FAN5611

www.fairchildsemi.com FAN5611/FAN5612/FAN5613/FAN5614 Low-Dropout LED Drivers for White, Blue or any Color LED Features LED Drivers for parallel-connected LEDs Ultra-low voltage drop (< 300mV) to support direct Li-ion applications No EMI, no switching noise No external components needed for current matching Both analog and PWM brightness control FAN5611, FAN5613 feature up to 160mA bias current (up to 40mA for each LED) FAN5612 features up to 120mA bias current (up to 40mA for each LED) FAN5614 features up to 160mA bias current (up to 80mA for each LED) Enable/Shutdown control (FAN5612, FAN5613, FAN5614) Shutdown current < 1µA Small footprint SC-70 and 2x2 MLP General Description The FAN5611/FAN5612/FAN5613/FAN5614 driver family provides matched current source bias for white, blue or any color LEDs. The current in the LEDs can be programmed by an external resistor. The individual LED currents are 200 x ISET, where ISET is the current through the external resistor connected to the CTRL pin. The FAN5611 and the FAN5613 are capable of driving four LEDs, while the FAN5612 can drive three LEDs. The FAN5614 is designated to drive two high current LEDs. In any case, at least I1 should be always connected to an LED in order to have the other LEDs driven with a matched current to I1. The FAN5612, FAN5613 and FAN5614 have Enable pin. When these devices are disabled, the supply current drops to less than 1µA. The FAN5611, FAN5612 and FAN5614 drivers are available...