LP55281

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP55281 SNVS458D – JUNE 2007 – REVISED OCTOBER 2016 LP55281 12-Channel RGB/White-LED Drive With SPI, I2C Interface 1 Features 1 Audio Synchronization for a Single Fun-Light LED Four PWM Controlled RGB LED Drivers High-Efficiency Boost DC-DC Converter SPI or I2C-Compatible Interface Two Addresses in I2C-Compatible Interface LED Connectivity Test Through the Serial Interface 2 Applications Cellular Phones PDAs, MP3 Players 3 Description The LP55281 device is a quadruple RGB LED driver for handheld devices. It can drive 4 RGB LED sets and a single fun-light LED. The boost DC-DC converter drives high current loads with high efficiency. The RGB driver can drive individual color LEDs or RGB LEDs powered from boost output or external supply. Built-in audio synchronization feature allows user to synchronize the fun-light LED to audio inputs. The flexible SPI or I2C interface allows easy control of LP55281. A small YZR0036 or YPG0036 package, together with minimum number of external components, is a best fit for handheld devices. The LP55281 also has an LED test feature, which can be used, for example, in production for checking the LED connections. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LP55281 DSBGA (36) 2.982 mm × 2.982 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Typical Application +- BATTERY CIN 1...