LP3936 Description
LP3936 is a plete lighting management system designed for portable wireless applications. It contains a boost DC/DC converter, 4 white LED drivers to drive the main LCD panel backlight, 2 white LED drivers for sub-LCD panel and 1 set of RGB LED drivers. Both WLED groups have 8-bit programmable constant current drivers that are separately adjustable and matched to 1% (typ.).
LP3936 Key Features
- 2 High Efficiency 250 mA Magnetic Boost DC-DC Converter with Programmable Output Voltage
- PWM controlled RGB LED drivers with programmable color, brightness, turn on/off slopes and blinking
- FLASH function with 3 drivers, each up to 120 mA current
- 4 constant current White LED drivers with programmable 8-bit adjustment (0 … 25 mA/LED)
- 2 constant current White LED drivers with programmable 8-bit adjustment (0 … 25 mA/LED)
- 8-bit ADC for ambient light sensor with averaging
- bined MicroWire/SPI and I2C patible serial interface
- Low current Standby mode (software controlled)
- Low voltage digital interface down to 1.8V
- Space efficient 32-pin TLGA laminate package