The LP3931 is a RGB LED driver with high current boost DC-DC converter designed for portable wireless applica- tions. It contains 2 sets of RGB LED drivers that are PWM- driven with programmable color, intensity and blinking pat- terns. They additionally feature a FLASH function to support picture taking with camera-enabled cellular phones. An efficient magnetic boost DC/DC converter provides the required bias, operating from a single Li-Ion battery. The DC/DC converter output voltage is user programmable for adapting to different LED types and for efficiency optimiza- tion. All functions are software controllable through the SPI inter- face and internal registers.
The LP3931 is an integrated circuit designed as a dual RGB LED driver featuring a high-current magnetic boost DC-DC converter. It is specifically engineered for portable wireless applications such as GSM and WCDMA cellular phones, providing efficient power management from a single Li-Ion battery source.
| Supply Current (Standby) | 1 uA |
|---|---|
| Boost Converter Output Current | 300 mA |
| LED Driver Outputs | 2 sets of RGB LED drivers |
| Flash Function Outputs | 6 outputs up to 120 mA each |
It is designed for portable wireless applications like GSM and WCDMA cellular phones.
All functions are software controllable through the SPI interface.