UCC3813DTR-4

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UCC3813DTR-4, a Pulse Width Modulator Integrated Circuit (PWM IC) designed for direct interfacing tomosfet, is a power management device commonly used in many types of AC/DC converter and offline switcher system. With its numerous features and wide range of applications, this product is ideal for complex power management applications that require controlled 40V supply voltage.

This well produced IC is equipped with protection and diagnostic circuitry that prevent the device from damage due to overvoltage, output overload, and even thermal situations. In addition, the IC is capable of providing adjustable frequencies (0-600kHz) so users can determine the most suitable for their system design. Plus, the IC has a PWM to analog converter feature that allows users to monitor the peak output current of the IC.

Working principle:

The UCC3813DTR-4 uses Pulse Width Modulation (PWM) technology to generate power outputs. Basically, it uses a reference voltage to set a desired operating point and then continuously monitors the error between this set point and the actual voltage. This error signal is then used to adjust the input voltage, thus making sure that the output voltage stays within specified limits.

This Pulse Width Modulation is done by a comparator circuit that takes in a reference signal and the error signal, then adjusts the input voltage accordingly and gives an output signal based on the magnitude of the error. This output signal is then used to control the on/off switching of the power MOSFET.

Using this good performance AC/DC converter, several advantages can be expected. Firstly, it causes minimum disturbances due to its high-resolution PWM to analog conversion circuitry. Secondly, the wide frequency range of 0-600kHz allows for adjustable switching frequencies, thus saving energy. Lastly, the IC is supplied with drain-to-source voltage ratings of up to 40V and peak current limit of up to 33A, which makes it suitable for most modern power management applications.

UCC3813DTR-4 is a great power management device with many features to make power management simpler and efficient. With its wide range of applications and features, this IC can be used to design almost any type of AC/DC converter and offline switcher system.

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