RP1365

Preliminary RP1365 4 Channels 100mA x1/x1.5/x2 Charge Pump White LED Driver General Description The RP1365 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 RP1365 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. For the brightness control, user can easily use a PWM signal generated from GPIO to control the brightness of WLEDs. The RP1365 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 RP1365 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. Typical Application Circuit CFLY1 0.22uF CFLY2 0.22uF VIN 2.8V to 5V 3 C1P 7 VIN CIN 1uF 8 EN PWM Dimming 5,6, Exposed pad (17) GND 24 1 C1N C2P C2N RP1365 LED1 13 LED2 12 LED3 11 LED4 10 VOUT 14 COUT 1uF Features Efficiency Up to 93% Over Li-ion Battery Discharge Typical 85% Average Efficiency Over Li-ion Battery Disc...