Click to expand full text
HOTCHIP
HT2800S
High Performance Primary Sensing Regulation Controller IC
Description
HT2800S is high performance primary sensing regulation and monolithic switchingmode power controller which is designed for small- power supply equipment with current mode control. Built- in accurate CV/CC control circuit. High integration design, a high performance power BJT and PFM controller and full protection circuits in single chip, to minimize external components and save the cost effectively. HT2800S can be simply designed a typical flyback switch converter, the unique driving technology promotes the characteristics of withstand voltage and achieves excellent converting efficiency .
Fig. 1. CC vs CV Curve ( Typ.