RP1364A

Preliminary RP1364A 4 Channels 100mA x1/x1.5/x2 Charge Pump White LED Driver General Description The RP1364A is a 4 channel WLED driver with auto mode selection of x1, x1.5 and x2 mode with low dropout voltage in current sources. The RP1364A can power up to 4 white LEDs with regulated constant current for uniform intensity. Each channel (LED1 to LED4) can support up to 25mA. The part maintains highest efficiency by utilizing x1/x1.5/ x2 fractional charge pump and low dropout current regulators. An internal 5-bit DAC is used for brightness control. Users can easily configure up to 16-step of LED current by enable pin. The RP1364A is available in a WQFN-16L 3x3 package. Small 0.22uF capacitors can be used for fly capacitors. It provides the best backlighting solution with high efficiency and smallest board space for portable application. Ordering Information RP1364A Package Type QW : WQFN-16L 3x3 (Option 1) Operating Temperature Range G : Green (Halogen Free with Commer- cial Standard) Note : Richpower Green products are : RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. Features Efficiency Up to 93% Over Li-ion Battery Discharge Typical 85% Average Efficiency Over Li-ion Battery Discharge Support Up to 4 White LEDs Support Up to 25mA/Per Channel Support Up to 100mA Output Current Flexible 16-step Brightness Control 60mV Typical Current Source Dropout 1% Typical LED Current Accuracy ...