L7986

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The L7986 is a voltage regulator designed to process, regulate, and convert DC voltages. It is often used in a wide range of applications, including consumer electronics, industrial driver motor control, and power supply solutions.

The L7986 relies on a step-down (buck) topology, capable of regulating the voltage from an input voltage source down to a lower regulated output voltage. This allows it to be used in a variety of applications where the output voltage must be controlled. The main advantages of the L7986 come from its extremely high efficiency (up to 97%) and adjustable output voltage levels, which can range from 2.5V to 17V.

The L7986 voltage converter consists of three main components: a switching FET and a controller, a voltage stabilization feedback circuit, and a power transistor to control the FET. These components are connected in a distinct manner in order to direct the current through the components in the most efficient manner, and to ensure consistent high output voltage and power levels.

The switching FET and the controller use a non-synchronous buck design to regulate the output voltage. This design works by switching the FET on and off, creating “pulses” as the FET turns on and off. This creates a series of current flow and voltage output waveforms, each with its own unique repetition rate. By controlling the pulse repetition rate, the output voltage of the L7986 can be adjusted.

The adjusting of the output voltage is done by monitoring the output voltage feedback circuit. This monitoring allows the controller to determine the current output voltage and adjust the pulse repetition rate accordingly. This ensures that the output voltage remains consistent and correct, at all times.

The power transistor switches to control the FET serve to switch the FET on and off in rapid pulses. These rapid pulses create the alternating current waves which then creates the output voltage. The power transistor is controlled by the micro-controller, and is the key to controlling the output voltage of the L7986.

The L7986 features a number of built-in protection features such as overcurrent protection and thermal shutdown, as well as a slew rate control for pulse frequency modulation. This makes the L7986 well suited for complex voltage regulation and current control applications.

The L7986 makes an excellent choice for a variety of applications which require a reliable, efficient, and power-saving voltage regulator. It is particularly useful for consumer electronics applications, industrial motor driver control applications, and power supplies. By utilizing the adjustable output voltage levels, the L7986 is capable of providing an efficient and stable power source for a wide range of devices.

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