The RT8486 is an isolated secondary-side lighting LED controller designed specifically for lighting fixtures such as E27, GU10, T5 and T8. The IC is suitable for applications that require power line isolation for safety, reliability, high conversion efficiency, as well as high LED current accuracy.
The RT8486 contains 1) a constant current regulating amplifier with 140mV threshold used to program the LED string current with a simple resistor to within 5% LED current accuracy; 2) an over-voltage comparator to protect the output when LED string is open or broken; 3) an opto-coupler driver to control the primary-side of the transformer to complete the system loop.
The RT8486 is offered in the small SOT-23-6 package.
- Isolated LED Lighting Fixtures