OB6566 Datasheet | On-Bright

DESCRIPTION OB6566 is an active transition-mode (TM) power factor correction (PFC) controller for AC-DC switching mode power supply applications. OB6566 features a demagnetization detector to ensure TM operation, a current sensing parator with built-in leading-edge blanking, and a totem pole output ideally suited for driving a power MOSFET. OB6566 offers great protection coverage including system over-voltage protection (OVP) to eliminate runaway output voltage due to load removal, VCC under voltage lockout (UVLO), cycle-by-cycle current limiting, Inductor short protection(ISP), and gate drive output clamping for external power MOSFET protection. With added system open loop protection feature , OB6566 shuts down system when the feedback loop is open. FEATURES - Transition Mode (TM) Operation - Works without Transformer ZCD Winding(simple inductor) - Low Start-up Current and Operating Current - Cycle-by-Cycle Current Limiting - Adjustable Demagnetization detection delay - Under Voltage...