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ADVANCE DATASHEET
Low-Po=wtetr Primary Side Regulation Power Switch
Datasheet
SDC3106
General Description
Features
SDC3106 is a high performance off-line PSR controller for
Tlow-power AC/DC charger and adapter applications
which integrates 700V power BJT. It works in Pulse
NFrequency Modulation Mode and provides operating Efrequency dithering function to improve EMC
performance of power supply. It operates in primary-side
Msensing and regulation. Consequently, opto-coupler and UTL431 could be eliminated. SDC3106 provides ±5%
constant voltage and constant current regulation at
CONFIDENTIAL DOCuniversal ACinput.
Primary side control without opto-coupler and TL431
30mW standby power, meeting six-star standard Built-in output cable voltage drop compensation Built-in AC compensation CV/CC regulation ± 5% Flyback topology in DCM operation Pulse frequency modulation mode Enhanced audio noise suppression Built-in leading edge blanking Over voltage.