PM6641TR

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PM6641TR is a special purpose Voltage Regulator. It is a member of the PMIC (Power Management IC) family for voltage management. It is often used in power supply design, as a part of a voltage reference management circuit. The device offers a wide range of features, including current-mode control, wide input voltage range, fast response time and adjustable output voltage. In this article, we will look into the application field and working principle of PM6641TR.

Application Field of PM6641TR

The PM6641TR is mainly used in low-noise and current mode-controlled voltage regulator circuits. Its main areas of application include desktop computers, LCD monitors, game consoles, HDTVs, laptops, tablets and other electronic products. Other applications include DC motor controllers, LED driver circuits, LED light controls, battery-operated device chargers, low-power regulators and low-dropout regulators.

The PM6641TR is one of the preferred voltage regulators in several products due to its precision control characteristics, wide input voltage range and fast response times. This makes it suitable for a range of applications where fast and precise current/voltage regulation is required. It is also designed to provide excellent thermal stability thereby minimizing the need for further voltage regulation.

Working Principle of PM6641TR

The PM6641TR is a current-mode PWM controller. It uses a control loop with negative feedback to accurately regulate a desired output voltage. This loop consists of a reference voltage, an error amplifier, a feedback network and a series of comparators that compare the input voltage to the desired output voltage. The output voltage is regulated using a pair of N-channel FETs connected in series, which act as a switch to control the current flow in the system.

The device also incorporates a hysteretic over-voltage protection circuit. This feature prevents accidental over-voltage failures due to unstable input voltage conditions and allows for energy efficient operation. In addition, the PM6641TR also integrates output over-current protection, under-voltage lockout and soft start features.

In summary, the PM6641TR is a special purpose voltage regulator designed for precision current/voltage regulation and excellent thermal stability. It offers a wide input voltage range, fast response time and adjustable output voltage, making it suitable for a range of low-noise and current mode-controlled applications such as desktop computers, LCD monitors, game consoles, HDTVs, laptops, tablets and other electronic products.

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