ICE3B5565PBKSA1

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PMICs, short for Power Management Integrated Circuits, are components responsible for controlling the power supply in applications such as computers, smartphones and other electronics. Among the many types of PMICs available in the market, ICE3B5565PBKSA1 is a popular choice due to its features and ease of use. In this article, we will discuss the application field and working principle of the ICE3B5565PBKSA1.

Application Fields of ICE3B5565PBKSA1

ICE3B5565PBKSA1 is categorized under PMIC - AC DC Converters, Offline Switchers. This Power Management Integrated Circuit is designed for applications such as off-line AC-DC converters, offline switchers and high wattage switching applications. The chipset allows for highly efficient power conversion designs, with quite low standby and operational power consumption. In addition, it has an extended temperature range and is compliant with the most recent safety requirements.

The ICE3B5565PBKSA1 is suitable for a wide range of applications including industrial control systems, home appliances, lighting systems, and multimedia products. It is also used in renewable energy systems, such as in solar inverters, due to its high efficiency and cost-effectiveness. Furthermore, this IC offers a wide input voltage, up to 700V, allowing designers more flexibility in their power supply design.

Working Principle of ICE3B5565PBKSA1

The ICE3B5565PBKSA1, as an offline switcher, utilizes the Zero Voltage Switching (ZVS) topology. It uses a small passive transformer core to effectively increase voltage conversion efficiency. The IC works by detecting the zero-crossing points of the ac waveform, where the peak of the optocoupler output waveform is close to zero. This ensures that the transistors are switched at the right point of the waveform – when the voltage is very close to zero.

The IC contains an internal Temperature Sensor which helps to provide overcurrent and overtemperature protection. When the die temperature exceeds the preset temperature threshold, the IC will limit the output, decreasing the die temperature and preventing any further overheating. Furthermore, the ICE3B5565PBKSA1 has built-in current-mode PFC, along with a programmable constant on time control scheme.

In addition, the IC has an under-voltage lockout (UVLO) feature which monitors the input voltage and prevents the output from being enabled if the input is below a predetermined level. This feature helps the system to protect itself when the supply voltage is too low.

Conclusion

In conclusion, the ICE3B5565PBKSA1 is a versatile and cost-effective Power Management Integrated Circuit that can be employed in a wide range of applications. Its features, such as Zero Voltage Switching, Temperature Sensor, Current-Mode PFC and UVLO, make it an ideal choice for designers when they need reliable power management solutions.

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