HT2801S
HT2801S is High Accuracy CV/ CC Primary Sensing Regulation Controller IC manufactured by HOTCHIP.
Description
HT2801S 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 ponents and save the cost effectively. HT2801S 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.)
Features
- Built- in 800V power BJT
- PSR control, eliminates Opto- coupler and
TL431
- Accurate CV/CC control
- Hysteresis over- temperature protection
(OTP) circuit
- High efficiency and meet Level 6 efficiency standards
- Output voltage protection (OVP/UVLO)
-...
