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PT4230
Primary Side CC Regulator
GENERAL DESCRIPTION
The PT4230 is primary side constant current regulator, which is designed for high performance and cost-effective LED lighting applications. With Powtech’s proprietary constant current compensation technique accurate output current regulation is achieved without the need of a secondary feedback circuitry. Integrated primary inductance compensation 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 oscillator, a current sense circuit, CC control circuit.
PT4230 Datasheet
