Line Card



【Basic Info】

【Product Feature】

The UBA3070 driver IC is the first member of a first generation of power-efficient LED backlight driver ICs.

LED backlight driver IC


The UBA3070 is typically suited as a high voltage LED backlighting application in LCD televisions and monitors


‧Switch-mode buck controller that drives strings of LEDs up to 600 V power-efficiently
‧Controller with power-efficient boundary conduction mode of operation:
a.No reverse recovery losses in freewheel diode
b.Zero current switching for turn-on of switch
c.Zero voltage or valley switching for turn-on of switch
d.Minimal required inductance value and size
‧Direct Pulse Width Modulation (PWM) dimming available
‧Fast transient response through cycle-by-cycle current control, thereby:
a.Preventing over or undershoots in the LED current
b.Enabling efficient PWM dimming by quickly turning the converter on and off and thereby removing the need for extra dim switches and high-side drivers
‧Single loosely controlled input voltage required for all LED strings in RGB backlights
‧No binning on LED forward voltage required