RGB "fun" lighting

January 2005
Portable Design;Jan2005, Vol. 11 Issue 1, p4
The article presents information on lighting systems. The LP3931 has high-efficiency programmable 300 mA magnetic boost converter, two separately controlled PWM RGB LED drivers, programmable color, brightness, turn on/ofF slopes and blinking patterns, FLASH function with 3 drivers, each up to 120 mA, programmable low-current standby mode, and low-voltage digital interface down to 1.65V. The LP3942 two separately controlled PWM RGB LED drivers with programmable color and brightness overlapping and non-overlapping RGB mode, 3V to 5V input voltage range, output current up to 120 niA, low-voltage SPI interface.


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