Power chip

FAN7601B is a programmable frequency green current mode PWM controller. It is ideal for off-line adapter applications and auxiliary power supplies that require high efficiency at light and no load conditions. The internal high voltage enables switching and Burst Mode reduces power consumption. FAN7601B includes protection features such as latch and overvoltage. Latch protection can be used for overvoltage protection, high temperature protection and other protection functions. Soft-start prevents output voltage overshoot at start-up.

The NCP13992 is a high-performance current-mode controller for half-bridge resonant converters. The controller implements 600 V gate drivers, which simplifies layout and reduces external parts count. The built-in undervoltage input function simplifies the implementation of this controller in all applications. In applications that require a PFC pre-stage, the NCP13992 has a dedicated output to drive the PFC controller. This feature, combined with dedicated noise-free skip mode technology, further improves the light load efficiency of the entire application. The NCP13992 provides a set of protection features for safe operation in any application. These include: overload protection, overcurrent protection to place hard switching cycles, undervoltage detection, open optocoupler detection, automatic dead time adjustment, overvoltage (OVP) and overtemperature (OTP) protection.