STR-W6052S

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The STR-W6052S is a high performance isolated offline switching regulator IC (PMIC - AC DC converters, offline switchers). This IC has many features such as overload protection, short circuit protection and over voltage protection. It is also a very power efficient IC with a high power efficiency of 92%. It is also suitable for dimming applications.

The STR-W6052S application fields mainly include flyback, forward and half-bridge converters, SMPS, AC-DC adapters, general purpose offline switching regulators and LCD TV power supply applications. It is also used in AC-DC dimming applications as well as for battery charger applications.

The primary application of the STR-W6052S is in AC-DC high power conversion applications. It is used in high power supply, power adapter and charger applications where single stage power conversion is required. It can be used in home appliance, white goods, telecom and industrial applications.

The working principle of the STR-W6052S is based on an isolated flyback converter topology. When in idle mode, the IC switches off the MOSFETs via the PWM control at a frequency of around 57KHz. At the same time, the current sense loop which is connected to the MOSFETs charges the bootstrap capacitor. During the on duration of the MOSFETs, the primary winding of the transformer carries the current while the secondary winding of the transformer transfers the power to the output filter.

The STR-W6052S features many protection blocks such as overvoltage, overtemperature and current limit protections. The IC also features an auto restart pin which can be used to reset the switching IC in case of a fault. The IC also features an auto-phase lock loop (APLL) which helps to improve the stability of the IC. In addition, the IC also features low reverse leakage, current sensing, precision reference and a soft start circuit for improved reliability.

In summary, the STR-W6052S is a high performance isolated offline switching regulator IC which is widely used in AC-DC high power conversion applications and AC-DC dimming applications. The working principle of the IC is based on an isolated flyback converter topology and it features various protection blocks, precision reference and current sensing. This makes the IC suitable for many applications and reliable in operation.

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