SI-8401L

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DC DC converters are used to supply power to electrical devices. The SI-8401L is a DC DC converter that is designed to provide a precision regulated output voltage from an input voltage source. The output voltage is adjustable and the SI-8401L has been specifically designed for efficient operation. It is commonly used in applications such as automotive, medical, communication and industrial control.

The SI-8401L is a single-input, dual-output DC/DC converter, which allows it to be used as an isolated power supply for two separate devices. It is an isolated, step down, fixed frequency synchronous buck converter that has a built-in active power factor correction circuit and a low EMI filter. The unit has a wide input voltage range, which allows it to be used in a variety of applications.

The SI-8401L has a PWM (Pulse Width Modulation) mode that allows it to be dynamically adjusted for optimal performance. It has a maximum output current of 10A with a power output of 18W, and a wide input voltage range of 5-30V DC. It is also protected against overvoltage, overload, and reverse polarity. The chip itself is adjustable for fine tuning the input-output relationship.

The working principle of the SI-8401L is that the input voltage source is rectified and regulated by the switching circuit. This creates a constant current, which is then converted to the desired DC output voltage. The switch mode power supply design is based on the principle of pulse width modulation (PWM), and is used to reduce power losses and maintain precise control of the output voltage. The active PFC (Power Factor Correction) circuit is used to reduce harmonic distortion and improve efficiency by minimizing the energy losses associated with reactive power.

The SI-8401L application field includes automotive, medical, communication, and industrial. In automotive applications, it is used to power infotainment systems, instrument clusters, and safety systems. It is also used in medical applications to power electronic medical equipment, as well as communication products such as cell phones, modems, and IoT devices. In the industrial field, it is used for variable speed drives, temperature controllers, robot controllers, and more.

The SI-8401L is a reliable and efficient DC DC converter that is used in a wide variety of applications. It has a wide input voltage range and is protected against overloads and other disturbances. Its active PFC circuit reduces harmonic distortion and increases efficiency, while its PWM mode allows for dynamic adjustment. With its low EMI filter and low quiescent current, the SI-8401L is an ideal solution for many power conversion requirements.

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