ON Semiconductor introduces next-generation power management systems

     ON Semiconductor's latest power management technologies include new LLC current mode power supplies for computers and LED TVS, significant advances in GaN, and motor driven controllers without position sensors. On introduces its first Current mode LLC controller, the NCP1399, highlighting its safety features and the inherent benefits of current mode control solutions. The power supply reference design integrates the NCP1399, NCP4810X2 capacitor discharger, NCP1602 power factor controller, and NCP4305 synchronous rectifier controller.

     This system solution is mainly for power supplies for all-in-one computers and large LED TVS, as well as ultra-high density power adapters. It achieves significantly higher performance, lower standby power consumption, and higher levels of power conversion efficiency than other possible competing devices. The NCP1399's current mode control architecture is at the heart of the power supply reference design, with built-in protection features, fast instantaneous response and improved light-load energy efficiency. The NCP4305 offers an 8A large drive and built-in light load detection for increased efficiency.

     This 240 watt (W) power supply integrates the NCP1397LLC controller, the NCP1654 Power factor Correction controller (PFC), and the TPH3202PS or NTP8G202NGaN transistor switch for 95% peak performance. GaNHEMT is used in the primary end of the PFC segment and the LLC segment.

     ON also presented the next generation software-free automotive motor drive solution LV8907. The crystal Intelligent Position Sensorless communication logic enables the LV8907 to drive a brushless direct current (BLDC) motor without any position sensors, thereby reducing solution cost and footprint. This software-free solution integrates a crystal-borne configuration register with the easy-to-use and free ON Semiconductor Graphical User Interface (GUI) utility to customize a wide range of motors and loads. The LV8907 is pre-loaded with a configuration register that can drive the motor in a standalone mode without the need for an external system controller. The LV8907 integrates a LIN transceiver and also offers an advanced Lin-based motor drive solution using a small, low-cost companion controller for LIN management tasks only.

     In addition, On and Transphorm are bringing gallium nitride (GaN) -based power configurations to market. Includes NTP8G202N(TPH3202PS) and NTP8G206N(TPH3206PS)600VGaN common-source Common-gate (cascade) transistors and 240W reference designs using these devices.

     The new NTP8G202N(TPH3202PS) and NTP8G206N(TPH3206PS) have typical on-impedance values of 150mΩ and 290mΩ and are available in an optimized TO-220 package that customers can integrate based on existing board manufacturing capabilities. Both 600V products have been certified to JEDEC standards and are in mass production.

     The NCP1397 GANGEVB(TDPS250E2D2) evaluation board provides customers with a complete reference design to implement and evaluate GaN common-source common-gate transistors in their power supply designs. The evaluation board provides customers with a smaller footprint and higher performance than using power from conventional devices. The boost section provides 98% performance and uses the NCP1654 power factor correction controller. The LLCDC-DC segment uses the NCP1397 resonant mode controller to deliver 97% full load energy efficiency. This performance is achieved when executed at 200+ kilohertz (kHz) and apparently also satisfies the Class B electromagnetic compatibility (EMC) performance of EN55022.