WPI Youshang Group launches PD3.1 power adapter solution based on onsemi products

【Lansheng Technology News】Recently, Youshang launched a PD3.1 power adapter solution based on ON Semiconductor NCP1680, NCP13994, NCP4306 and FAN65004 chips.

With the promulgation of the USB PD3.1 protocol, fast charging technology has also ushered in a new era. Compared with the previous mainstream PD3.0 standard, the PD3.1 standard not only adds three expanded output voltages of 28V, 36V, and 48V, but also increases the maximum output power from 100W to 240W, which breaks through the existing high-power usage scenarios. , is expected to expand fast charging standards to new application areas. In order to accelerate USB PD3.1 charging design, WPI Youshang launched a PD3.1 power adapter solution based on onsemi NCP1680, NCP13994, NCP4306 and FAN65004 chips, which can bring users an efficient charging experience.

Onsemi's NCP1680 is a CrM totem pole PFC controller. It has two built-in half-bridges, one driven by PWM switching frequency for PFC boost. The other half-bridge performs synchronous rectification at AC frequency, thereby eliminating rectifier bridge losses in traditional rectifier circuits, improving conversion efficiency, and reducing heat dissipation requirements. In addition, the NCP1680's internally compensated digital loop control uses a constant on-time CCM architecture with valley switching functionality. And cycle-by-cycle current limiting is achieved without the need for Hall-effect sensors.

The NCP13994 is a high performance current mode controller for half-bridge resonant converters in offline power supplies. Its integrated X2 capacitor discharge, startup current source and gate driver simplify layout and reduce the number of external components in the power supply. And the NCP13994 has a dedicated output that can be connected to a PFC controller in applications that require a PFC preamplifier.

NCP4306 is a synchronous rectification controller designed to control synchronous rectification MOSFETs in switch mode power supplies. The controller can be used in various topologies such as DCM or CCM flyback, quasi-resonant flyback, forward and Half-Bridge Resonance LLC.

The FAN65004 is a wide VIN, high-efficiency synchronous buck regulator integrating high-side and low-side power MOSFETs. The device uses a fixed-frequency voltage-mode PWM controller to provide complete protection functions, including over-current protection, thermal shutdown, under-voltage lockout, over-voltage protection, under-voltage protection and short-circuit protection.

In addition to the above devices, this solution is also equipped with NCP58921 GaN devices, NTMT064N65, NCP51530 and other products, which can further improve charging efficiency and stability. In the future, as fast charging technology continues to evolve towards higher charging power, its application scope will be further expanded. During this process, Dalianda will continue to provide customers with high-quality fast charging solutions to help everyone quickly enter the era of fast charging for everything.

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