HOME>在庫検索>在庫情報
UBA3070-DEMO
UBA3070 LED backlight driver IC Rev. 02 — 2 December 2008 Product data sheet 1. 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 I Switch-mode buck controller that drives strings of LEDs up to 600 V power-efficiently I Controller with power-efficient boundary conduction mode of operation: N No reverse recovery losses in freewheel diode N Zero current switching for turn-on of switch N Zero voltage or valley switching for turn-on of switch N Minimal required inductance value and size I Direct Pulse Width Modulation (PWM) dimming available I Fast transient response through cycle-by-cycle current control, thereby: N Preventing over or undershoots in the LED current N 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 I Single loosely controlled input voltage required for all LED strings in RGB backlights I No binning on LED forward voltage required I Protections: N Undervoltage lockout N Leading edge blanking N Overcurrent N Overtemperature I Low cost LED driver solution: N No Schottky diode required because of zero-current switching N No dim switch and high-side driver required for PWM dimming N Smaller inductor possible compared to fixed-frequency continuous conduction mode controllers 3. Applications I The UBA3070 is typically suited as a high voltage LED backlighting application in LCD televisions and monitors (See Figure 1)
宅配業者の代金引換又は商品到着後一週間以内の銀行振込となります。