onsemi NCP1568
The NCP1568 is a highly integrated ac−dc PWM controller designed to implement an active clamp flyback topology. The ZVS feature increases power density of a power converter by increasing the operating frequency while achieving high efficiency. The Active Clamp Flyback (ACF) operation simplifies EMI filter design to avoid interference with other sensitive circuits in the system.FEATURES
● Topology and Control Scheme ♦ Active Clamp Flyback Topology Aids in ZVS ♦ Proprietary Multi−Mode Operation to Enhance Light Load Efficiency ♦ Proprietary Adaptive ZVS Allows High Frequency Operation while Reducing EMI ♦ Inbuilt Adaptive Dead−Time for Both Main and Active Clamp FETs ♦ Peak Current−Mode Control with Inbuilt Slope Compensation with Options ♦ Flexible Control Scheme and Programmability Allow for Configuration with Either External Silicon or GaN FETs● DCM and Light Load Operation ♦ Customer Programmable Optional Transition to DCM ♦ Integrated Frequency Foldback with Minimum Frequency Clamp for Highest Performance in Standby Mode ♦ Minimum Frequency Clamp and Quiet Skip Eliminates Audible Noise ♦ Standby Power < 30 mW
● Integrated HV and Startup Circuits ♦ 700 V Startup Circuit ♦ AC Line Brownout Detect
● Drivers ♦ 0.85 A/1.5 A Source/Sink for Low Side ♦ 65 mA/150 mA Active Clamp Driver Output DATA SHEET MARKING DIAGRAM TSSOP−16 DT SUFFIX CASE 948BW 1 1568 XXX AL...