HT2800S
HT2800S is High Performance Primary Sensing Regulation Controller IC manufactured by HOTCHIP.
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 ponents 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.)
Features
- Built- in 700V 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)
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