AS1102

www.DataSheet4U.com austriamicrosystems Data Sheet A S 11 0 1 , A S 11 0 2 , A S 11 0 3 , A S 11 0 4 Low-Dropout LED Drivers 1 General Description The AS110x family are LED drivers providing matched current source bias for any color LED, including white and blue. LED current is programmable using an external resistor. The AS1101 LED currents are typical 460 x ISET (per LED) at an LED cathode voltage of 150mV and typical 650 x ISET at an LED cathode voltage of 1V. The AS1102, AS1103, and AS1104 LED currents are typical 230 x ISET (per LED) at an LED cathode voltage of 150mV and typical 325 x ISET at an LED cathode voltage of 1V where ISET is the current through the external resistor connected to the CTRL pin. The AS110x family can drive up to 4 high-current LEDs. The AS1101, AS1102, and AS1104 incorporate a chipenable feature via pin ON. When the devices are disabled, the supply current drops to less than 1µA. The devices are pin-to-pin compatible to the FAN5611, FAN5612 and FAN5614. 2 Key Features ! ! ! ! ! ! ! ! ! ! ! ! LED Drivers for Parallel-Connected LEDs Ultra-Low Voltage Drop: Less Than 150mV (for Liion Battery Support) Analog and PWM Brightness Control Up to 80mA per LED (AS1101) Up to 40mA per LED (AS1102, AS1103, AS1104) No Electromagnetic Interference, No SwitchingNoise Current-Matching Requires No External Components Active-Low Shutdown Mode (AS1101, AS1102, and AS1103) Low Shutdown-Current: Less Than 1µA SC70-6 Package (AS1101, AS1102, and AS1103) MSOP-8 Pac...