IR2E46Y Datasheet | Sharp Corporation

Description IR2E46Y incorporates the illumination driver and the flash driver for an RGB-LED, and is equipped with the step-up DC/DC converter. This product is optimum for use as the RGB-LED driver IC for PDA and cellular phone applications, etc. - Agency approvals/pliance 1. pliant with Ro HS directive(2002/95/EC) - Applications - Features 1.Power supply: 2.7 V to 4.5 V 2.Supports I2C-bus interface The I2C address extension function enables simultaneous controlling of four devices. 3.SCL pin and SDA pin are installed with noise filters. 4.Sink-type variable constant current driver for RGB-LED (maximum current 155m A x 3ch） Stroboscopic mode: 0m A to 155m A (32 steps per output, 5.0m A STEP) Illumination mode: 0m A to 31.5m A (64 steps per output, 0.5m A STEP) 5.VF control circuit embedded (VDD to 13V) 6.LED brightness adjustment circuit embedded (16 steps, PWM control) 7.Stroboscopic timer embedded 8.Independent RGB control output enable circuit embedded 9.Current slope control circuit embedded 10.Voltage/current PWM control type step-up DC/DC converter circuit embedded (oscillatory frequency 1.2 MHz) 11.Low ON resistance switch (0.2Ω TYP.) 12.SW transistor overcurrent protection circuit embedded 13.Voltage reference embedded 14.Stand-by circuit embedded 15.Power-on-reset circuit embedded 16.UVLO circuit embedded 17.Digital soft-start circuit embedded 18.Thermal shutdown circuit embedded 1.Torch light and illuminations (RGB LED) Notice The content of data sheet is subject to change without prior notice. In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. Sheet No.: F1-A00301EN Date Dec.01.2006 ©SHARP Corporation - Block diagram SBD CVOUT 2.2μF LED L 2.2μH CVIN VBAT VBAT R2 39kΩ C2 220p F RCS 75mΩ EI R1:50kΩ...