CUT75522/TB

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AC/DC converters are electronic devices which convert alternating current (AC) electrical energy to direct current (DC) energy and vice versa. They are used for various applications ranging from computer peripherals to major electrical power supplies for industrial and commercial uses. One such AC/DC converter is the CUT75522/TB, a 125-200 kHz switching frequency AC/DC converter used for Universal Input and Global applications such as Switch Mode Power Supply (SMPS) and Telecom Power Supply (TPS).

The CUT75522/TB is a Pulse Frequency Modulation (PFM) Synchronous rectifier Buck converter with an integrated 16-Lead Plastic DIP package. It is versatile and feature-rich and supports input voltages ranging from 8 to 18 VDC. It provides buck conversion at 1A current level and has a low output ripple and low noise operation since the second stage rectifier is driven by PFM control.

The CUT75522/TB has a wide range of features and benefits that make it an ideal choice for Universal Input and Global applications. Its onboard Differential Remote Sensing detects and compensates for line voltage drop due to normal loads, ensuring accuracy and reliability. It also supports On/Off and Open/Close loop control making it suitable for use in high reliability systems. It also supports active inrush current limiting to protect circuits from unexpected inrush currents. The CUT75522/TB can work with up to 50V output voltage and provides soft start and adjustable output voltage capability, making it suitable for most applications. It also offers thermal shutdown and over-voltage protection and has a low power standby mode.

The working principle of the CUT75522/TB is based on the switching of two pairs of MOSFET devices. During the ON period, a high side MOSFET is switched on to draw energy from the input source while a low side MOSFET is switched off. During the OFF period, the high side MOSFET is switched off and the low side MOSFET is switched on to draw the diode current from the output. This process is constantly repeated in order to create a buck converter with a DC output voltage. The operating frequency of the device is determined by the external clock connected to the Frequency Select pin.

The CUT75522/TB is well suited for use in multiple applications including Switch Mode Power Supplies (SMPS), Telecom Power Supplies (TPS), Uninterruptible Power Supplies (UPS), power managers, and professional audio equipment. The device can also be used to power used rechargeable lead-acid batteries, Li-Polymer batteries, and other battery-based applications thanks to its intuitive and feature-rich design. The CUT75522/TB is an easy and cost-effective solution to AC/DC conversion for multiple industries and applications.

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