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LP8545 High-Efficiency LED Backlight Driver for Notebooks
September 23, 2011
LP8545 High-Efficiency LED Backlight Driver for Notebooks
General Description
The LP8545 is a white LED driver with integrated boost converter.
It has six adjustable current sinks which can be controlled by PWM input or with I2C-compatible serial interface.
The boost converter has adaptive output
voltage control based on the LED driver
voltages.
This feature minimizes the power consumption by adjusting the
voltage to lowest sufficient level in all conditions.
LED outputs have 8-bit current resolution and up to 13-bit PWM resolution with additional 1-3 bit dithering to achieve smooth and precis...