The NCP1399AADR2G with Switching Controllers HIGH PERFORMANCE RESONANT manufactured by ON Semiconductor is an efficient, low-cost solution for building space-constrained AC/DC, resonant and quasi-resonant designs. This integrated control circuit contains an on-chip MOSFET driver, resonant controller, and active PFC driver. The device offers a wide and accurate operating frequency range from 20kHz to 500kHz with adaptive valley switching technology, fast dynamic response, and a constant-current/constant-voltage controller that eliminates the need for an optocoupler. The device also features an asynchronous burst mode operation to reduce EMI/EMC. This part is ideal for powering LED lighting, networking and computing, home appliances, and consumer electronics applications.