TEMPERATURE

LED backlight driver IC1. General description The UBA3070 driver IC is the first member of a first generation of power-efficient LED backlight driver ICs. Highly efficient, flexible and reliable LED drivers can easily be designed using the UBA3070 control IC. 2. Features and benefits? Switch-mode buck controller that drives strings of LEDs up to 600 V power-efficiently? Controller with power-efficient Boundary Conduction Mode (BCM) operation:? Virtually no reverse recovery losses in freewheel diode? Zero Current Switching (ZCS) at switch, switch-on? Zero voltage or valley switching at switch, switch-on? Minimal required inductance value and size? Suitable for direct Pulse Width Modulation (PWM) dimming? Fast transient response through cycle-by-cycle current control, thereby:? Preventing over or undershoots in the Light Emitting Diode (LED) current? Enabling efficient PWM dimming by quickly turning the converter on and off and thus removing the need for extra dimming switches and high-side drivers? Single controlled input voltage required for all UBA3070 driven LED strings in RGB or white backlighting units? No binning on LED forward voltage required? Protections