Automotive display LED-backlight with six 150-mA channels

The LP8866S-Q1

is an automotive

high-efficiency LED driver with boost controller. The Six high-precision current sinks support

phase shifting that is automatically adjusted based on the number of channels in

use. LED brightness can be controlled globally through the I²C interface or PWM

input.

The boost controller has adaptive

output voltage control based on the headroom voltages of the LED current sinks. This

feature minimizes the power consumption by adjusting the boost voltage to the lowest

sufficient level in all conditions. A wide-range adjustable

frequency allows the LP8866S-Q1

to avoid disturbance for AM

radio band.

The LP8866S-Q1

supports built-in hybrid PWM

dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and

increases the total optical efficiency.