Datasheet Summary
Accurate CC/CV Primary Side PWM Power Switch
Product Description
PL3378 is a high efficiency Primary Side Regulator and highly integrated PWM Power Switch for AC/DC power supply applications. It simplifies conventional CC/CV charger/adaptor designs by eliminating the opto-coupler and secondary control circuitry. Constant output voltage and current regulation is realized as shown in the Fig.1 below.
Multi-mode operations are utilized to achieve low standby power, high efficiency and audio & noise free. PL3378 operates in PFM mode at large load condition, with the load bees medium or light, the chip operates in Green mode to achieve high efficiency.
PL3378 also offers rich...