DDA114YU-7

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The DDA114YU-7 is a digital pre-biased array which belongs to a family of bipolar junction transistors (BJT). It is designed to act as a current regulator, sensing and controlling the current in a circuit and enabling the circuit to provide a constant output current source.

The DDA114YU-7 is designed to provide an output current sink with a maximum rating of 20 milliamps per transistor, and is ideal for use in low-voltage, low-power circuits. It consists of two transistors connected in series and arranged in a pre-biased configuration.

In a pre-biased array, one of the transistors is held in an active state with a fixed current pre-bias current. This fixed current is provided by the DDA114YU-7’s built-in pre-bias current source. The second transistor acts as a current controlling transistor, which is turned on and off by the control voltage. The output current source is then adjusted by adjusting the control voltage.

When the control voltage is kept low, the second transistor remains in an off-state and no current passes through it. The pre-bias current source supplies the current to the first transistor. This causes the first transistor to supply more current, resulting in the output current source reaching its maximum value.

When the control voltage is increased, the second transistor turns on, limiting the current that can flow through the first transistor. This causes the output current source to decrease until it reaches its minimum value.

The DDA114YU-7 is perfect for applications where accuracy and stability are needed, as it allows for precise control of the output current. It is widely used for LCD backlight and LED drive applications, as well as for power management and DC/DC converters. It is also used in automotive headlight dimmers, automotive body controllers, and motor control and current sensing applications.

Overall, the DDA114YU-7 is an ideal choice for applications which require accurate and stable control of current. Its pre-biased configuration allows it to provide precise control of the output current, making it ideal for precise current sensing and control applications.

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