Fairchild Manuals

This application note focuses on the soldering and back end processing of the Power33.

This application note describes assembly guidelines and recommendations for the MicroFET 2x2, including pre-assembly preparation, mounting methods, reflow soldering, and back-end processing.

This application note focuses on the soldering and back end processing of the MicroFET 2x2

This document describes a novel method for an off-line power factor correction (PFC) - PWM combo controller. The controller improves power usage efficiency and reduces harmonic content in the line current.

This document describes a simple and inexpensive method to synchronize a fixed frequency PWM controller to a wide range of frequencies (>2x). It explains why synchronization is needed and presents a popular method of single frequency synchronization, along with its limitations. It then covers the topic of wide frequency range synchronization and presents a block diagram using a novel approach based on a phase locked loop (PLL). A practical design example is provided, complete with design formulas and a schematic for synchronizing the ML4824-1 to any frequency in the 25kHz to 75kHz range. The circuit presented can be used with any controller using a RC generated voltage ramp for the oscillator.

ML4824 is a high performance power controller launched by Fairchild. This application note introduces the working principle and application circuits of ML4824.

NDS356AP is a P-Channel logic level enhancement mode power field effect transistor, suitable for low voltage applications such as notebook computer power management, portable electronics, and other battery powered circuits, with features including fast high-side switching and low in-line power loss.

The NDS8425 is an N-channel MOSFET from Fairchild Semiconductor that uses the Power Trench process for extremely low RDS(ON) and low gate charge. It can be used in DC/DC converters and load switches.

This document describes the features and characteristics of the NDS8434 single P-channel enhancement mode field effect transistor, released in June 1996. These transistors are produced using Fairchild's proprietary high cell density DMOS technology, which minimizes on-state resistance and provides superior switching performance. They are particularly suitable for low voltage applications such as notebook computer power management and other battery powered circuits, requiring fast switching, low in-line power loss, and resistance to transients.

This document describes the absolute maximum ratings and features of the NDS8947 dual P-Channel enhancement mode field effect transistor, released in March 1996. The product is suitable for low voltage applications and offers fast switching, low power loss, and resistance to transients.

NDS9400A is a P-channel enhancement mode power field effect transistor produced by Fairchild. It has extremely low RDS(ON) and high current handling capability. It is suitable for low voltage applications such as notebook computer power management and other battery powered circuits where fast switching, low in-line power loss and resistance to transients are needed.

The NDS9407 60V P-Channel PowerTrench MOSFET is a rugged gate version of Fairchild Semiconductor’s advanced PowerTrench process. It has been optimized for power management applications requiring a wide range of gate drive voltage ratings (4.5V – 20V).

The NDS9945 is a N-Channel enhancement mode power field effect transistor produced by Fairchild using its proprietary, high cell density, DMOS technology. This very high density process is especially tailored to provide superior switching performance and minimize on-state resistance. These devices are particularly suited for low voltage applications such as disk drive motor control, battery powered circuits where fast switching, low in-line power loss, and resistance to transients are needed.