Advanced controller and driver deliver efficient USB-PD power adapter and battery charger solutions

ON Semiconductor has introduced a new solution for high-density power adapters for tablets, notebooks, and other portable devices that need compatibility with USB PD or Qualcomm Quick Charge specifications. The solution, including multiple patents pending, comprises the NCP1568 ACF controller and a corresponding high-speed, half-bridge driver – the NCP51530. This produces a 65W USB-PD compliant adapter with a 30W/in^3 power density while running at 94.5% peak efficiency. Housed in a small TSSOP-16 package, the device includes a range of protection features. The quiet skip feature eliminates audible noise during operation, a crucial requirement for indoor power adapter applications. Commenting on the new releases, Ryan Zahn, director of marketing and applications for the AC/DC Business Group at ON Semiconductor said: “This solution represents a significant step forward in design for modern power adapters and battery chargers. Advanced features and flexible operation in the NCP1568 ACF controller deliver excellent efficiency while utilising SJ FETs, and requiring few external components, thereby enabling high-density designs to be realised for USB PD. The NCP51530 drivers are a high-speed, high-performance, robust power solution that includes the option of AEC Q-100 qualification for automotive applications.”