Learn from our design expert about the features of the NCP12601, multi-mode PWM controller for USB Power Delivery solutions. The device can operate in continuous conduction mode (CCM), discontinuous conduction mode (DCM) with valley switching and skip mode for improved efficiency compared to traditional fixed-frequency flyback PWM controllers. Discover how the NCP12601 can assist you in your USB Power Delivery (PD) design.
Full Transcript
Hello, my name is Anthony Nasir, Applications Engineer with ON Semiconductor. Here I have a 65-W USB PD demo board featuring the NCP12601 multi-mode PWM controller. This controller incorporates several features that make it ideal for USB-C power adapters, printer power and for charging applications. Such features include a low loss self-biasing ability and auto-tuning Over-Current Protection which support wide output voltage range designs with minimal external components.
The NCP12601 multi-mode PWM controller incorporates valley switching for improved efficiency across line and load conditions. In high power conditions, the part operates in continuous conduction mode (CCM). As the load decreases, the converter enters discontinuous conduction mode (DCM) with frequency foldback. At no load, the controller will enter skip mode operation for excellent standby power. High-voltage start-up and X2 discharge are also integrated along with protection features such as Brown Out, over power protection, and short circuit protection.
This demo board is designed to quickly assess the NCP12601 multi-mode PWM controller in a USB PD application. It accepts an AC input voltage range from 90 Vrms to 265 Vrms and can output 5 V to 20 V and deliver a nominal current up to 3.25 A.
The design meets CoC Tier 2 efficiency standards, with up to 93% efficiency and no load input power below 60 mW.
Learn more about the NCP12601 multi-mode PWM controller or design information on this 65-W USB PD demo board.
