TEA1750T/N1/DG,518

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PMIC or Power Management Integrated Circuits (ICs) are designed to reduce power consumption in different electrical and electronic products. They enable efficient voltage regulation as well as integrated protection features such as overvoltage protection, overcurrent protection, and overtemperature shutdown. TEA1750T/N1/DG,518 is among one of the most popular PMICs available in the market. It belongs to the PMIC - AC DC Converters, Offline Switchers product category and is used for a variety of applications.

The TEA1750T/N1/DG,518 IC is a primary side switch mode power supply controller designed for off-line power supplies up to 500W. It features a proprietary digital energy regulation technology that significantly reduces the standby power consumption. Also, the IC incorporates digital control to enable a high degree of system control, voltage accuracy and high transient response. The operating frequency of the IC can be adjusted by changing the external oscillator value and is derived from the integrated oscillator.The maximum peak current limit level is adjustable to suit user’s needs.

The application field of the TEA1750T/N1/DG,518 IC includes LED television power supplies, LED displays, digital home appliances and other consumer applications. It is well-suited for applications where a cost-competitive power supply with a high efficiency is required. The IC is designed to reduce the power consumption of electronic devices significantly and therefore make it eco-friendly.

The working principle of the IC is based on a power factor correction (PFC) topology. It is designed to operate in discontinuous conduction mode (DCM) and employs single-switch Forward converter with a minimum number of external components. The input voltage is boosted by a boost PFC stage and then fed to the primary side of the flyback power stage for the power conversion. This process takes place by switching on and off the primary side switch. The controller continuously monitors the output voltage and adjusts the duty cycle of the power stage output switch in order to keep the output voltage constant.

The TEA1750T/N1/DG,518 IC can also operate in an active burst mode. In this mode, it reduces the switching frequency of the Power MOSFET in light load conditions so as to improve the system efficiency and reduce the audible noise due to switching.The IC also integrates a multi-protection feature that includes overvoltage, undervoltage, and overcurrent protection.

In conclusion, the TEA1750T/N1/DG,518 IC offers a cost-effective, high performance and low standby power consumption solution for a wide range of AC - DC power conversion applications. It is designed to provide high efficiency, accurate regulation, extended protection, and an adjustable system frequency that can be easily adjusted by the user.

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