PT4223 Datasheet | PowTech

1-5W Primary Side CC Regulator GENERAL DESCRIPTION The PT4223 is primary side constant current regulator, which is designed for high performance and cost-effective LED lighting applications. With Powtech’s proprietary constant current pensation technique accurate output current regulation is achieved without the need of a secondary feedback circuitry. Integrated primary inductance pensation circuitry provides accurate constant current operation despite variations in primary inductance. Excellent EMI performance is achieved with frequency jittering function together with soft driving control at totem pole gate drive output. The device integrates a high voltage power switch, an...