LP3942 Datasheet - National Semiconductor

LP3942 The Dual RGB LED Controller

The LP3942 is an integrated stand-alone RGB LED controller with a high efficiency and low noise programmable 1.5x and 2x charge pump. The RGB LEDs are controlled through the low voltage SPI interface. RGB programmability allows unique color and brightness control with both RGB outputs. The color con.

LP3942 Features

* n Pre-regulated 1.5x and 2x charge pump with regulated output (4.5V and 5.0V) n 2 separately controlled PWM RGB LED drivers with programmable color and brightness n Overlapping and non-overlapping RGB mode n Wide input voltage range 3V

* 5.0V n Output current up to 120 mA n Low voltage SPI int

LP3942_NationalSemiconductor.pdf