austriamicrosystems AS3822/AS3823 LED TV driver and IC Portfolio

austriamicrosystems has released the latest additions to its LED TV driver and support IC portfolio.

The ICs include three LED drivers and an LED power supply IC.

The AS3822 and AS3823 are six- and eight-channel LED driver ICs and are fully compatible with the 16- and 12-channel AS3820 and AS3821 LED drivers. This compatibility enables manufacturers to use the same hardware design and software for the whole range of LED edge-lit TVs.

All driver ICs in this series employ enhanced digital power feedback control to achieve the lowest possible energy consumption. Smart dimming functionality further reduces power consumption.

The AS3810 16-channel LED driver with internal FETs is the 3rd generation of driver IC for direct-lit TVs. It features all the functionality needed to optimise power consumption in large direct-lit TVs.

Multiple ICs are easily combined to deliver dozens of dynamically dimmed backlighting segments, if required.

All the drivers match with the AS1390 combination boost controller/buck converter, which is optimised for the power needs of LED TV backlights. It supplies the LED backlight with a high-power, constant-frequency boost controller optimised for up to 90 V/3 A, combined with a 5 V/100 mA step-down converter to supply a microcontroller or other devices.

In addition to offering special features for 3D, the AS1390 supports the needs of low energy consumption for LED TVs, with over 95% power efficiency.

Power consumption is further reduced by smart light sensors from TAOS that were recently added to the company’s range.