AS3820 Overview
Description
The AS3820 is a 16 channel precision LED controller for use in LCD-backlight panels. Dynamic power feedback controls the external power supply to guarantee best efficiency.
Key Features
- All LED backlight topologies xx No limit of VLED or ILED, device is not exposed to high voltage/high current
- Synchronization with TV frame xx VSYNC and HSYNC inputs available as well as a digital PLL integrated(2)
- Optimum power savings through local dimming xx 16 fully flexible 12 bit PWM generators (period, high time, delay, reverse)
- Lowest BOM xx Due to 2 pin concept of the output channel: no HV protection, no cascade FETs
- Highest brightness uniformity xx One global high accuracy 10 bit DAC which sets the LED current (±0.5% accuracy)
- Digital enhan
