Description
FT833xxx is a high precision primary-side feedback and regulation constant current driver for LED lighting applications.
It is designed to work in inductor current discontinuous conduction mode (DCM) and is especially suitable for flyback converter under universal input.
Features
- Built-in 650V power MOSFET.
- PSR constant current control without
secondary sense and feedback circuit.
- No auxiliary winding for sensing and supplying.
- Ultra low operating current for high efficiency.
- Universal input voltage.
- ±3% LED current accuracy.
- Choice for maximum duty cycle and OVP
voltage.
- Precision OVP voltage for best LED open
circuit protection.
- LED short circuit protection.
- CS resistor short circuit protection.
- VCC under-voltage.