45-V LED backlight driver with three channels 120-mA output

The TPS92380, TPS92381 is a

highly-integrated, high output power, easy-to-use LED driver with DC-DC converter.

The DC-DC converter supports both boost and SEPIC mode operation. The device has

four or three high-precision current sinks that can be combined for higher current

capability.

The DC-DC converter has adaptive

output voltage control based on the LED forward voltages. This feature minimizes the

power consumption by adjusting the voltage to the lowest sufficient level in all

conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency

and an external synchronization with dedicated pin. A wide-range adjustable

frequency allows the TPS9238x to avoid disturbance for sensitive frequency

band.

The input voltage range for the TPS9238x

is from 4.5 V to 40 V . The TPS9238x integrates extensive fault detection

features.