UBA3070T-N1 LED backlight driver IC linear and digital integrated circuits electronic devices and integrated circuits

LED backlight driver IC

Features

■ Switch-mode buck controller that drives strings of LEDs up to 600 V power-efficiently

■ Controller with power-efficient boundary conduction mode of operation:

◆ No reverse recovery losses in freewheel diode

◆ Zero current switching for turn-on of switch

◆ Zero voltage or valley switching for turn-on of switch

◆ Minimal required inductance value and size

■ Direct Pulse Width Modulation (PWM) dimming available

■ Fast transient response through cycle-by-cycle current control, thereby:

◆ Preventing over or undershoots in the LED current

◆ 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

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.

Limiting values

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