Document
iW7032
32-Channel LED Driver for LCD Panel Backlighting
1.0 Features
●● Fully integrated power FET with minimum external components
●● Proprietary digital power management and patented adaptive switch mode LED driver
●● 32-channel output each at 56 V with 9 V to 28 V input supply voltage range
●● Dynamic external Boost or Buck controller interface to optimize system power efficiency
●● Serial Peripheral Interface (SPI) compatible for high bandwidth PWM-based dynamic local dimming
●● Per channel current up to 120 mA average current, with non-adaptive-switch peak current of 120 mA for local dimming and 192 mA for scanning mode, and with adaptive-switch peak current up to 60% higher.
●● LED failure (open and short-circuit) detection
●● LED brightness local dimming, scanning, and 3D game mode controlled by SPI interface
●● PWM dimming range from 1% to 99.9% with 10-bit resolution
●● Vsync synchronized PWM
●● PWM dimming frequency from 120Hz t.