8 Channel White LED Controller for LCD Backlight
The AS3822 is a 8 channel precision LED controller for use in LCDbacklight panels. Dynamic power feedback controls the external power supply to guarantee best efficiency. Build in safety features include thermal shutdown as well as open and short LED detection. The device is programmable via serial interface.
AS3822 PRODUCT FACTS
| Outputs [#] | 8 |
| LED current per output [mA] | depends on external FET |
| Features | Enhanced digital feedback, 3D, DPLL |
| Error detection | ✓ |
| Read-back | |
| LED-to-LED matching [%] | 0.2 |
| Supply voltage [V] | 4.0-5.5 |
| Package | QFN32 (5x5)-0.5p TQFP32 (7x7)-0.8p |