L6598D

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PMIC (power management integrated circuit) is an integrated circuit consisting of strong control functions. It helps to convert high levels of power between higher voltage and lower voltage by using several switching techniques. AC/DC converters and offline switchers are two of the most common types of PMICs. The L6598D is an offline switcher IC specifically designed for applications where high efficiency and power density are needed. This article provides an overview of the application field and working principle of the L6598D.

Application Field

The application field of the L6598D is mainly in applications that require high efficiency, full power factor, wide operation range and overload protection. Additionally, it is well-suited for use in lighting, computer, consumer and industrial equipment. In particular, this device is well-suited for applications such as ballast, UPS and telecom.

It has been designed to be used in off-line applications requiring up to 250 watt. However, it is possible to use the L6598D in applications requiring up to 300 watt through proper circuit design. This device is also suitable for applications that demand high efficiency, high power factor, wide flux regulation range and mobility of the load.

Working Principle

The L6598D is an offline switcher IC specifically designed for applications where high efficiency and power density are needed. It works by providing protection against overcurrent, short-circuit, UVLO, OVP and over temperature protection. It also supports design-in of current control, burst-mode control (0~100% of output power), primary-side control and valley-mode control.

The working principle of the L6598D involves a synchronous rectification circuit and a controlled primary side. The synchronous rectification circuit represents the secondary side of the L6598D. It is responsible for providing efficient conversion during all modes of operation, including burst and pulse-width modulation (PWM) mode. The primary side of the device features a PWM control and over-current protection (OCP). This side also contains protection circuitry to ensure safe and reliable operation. Additionally, L6598D is capable of synchronizing with a switching frequency up to 400kHz.

The combination of the controlled primary side, synchronous rectification and the circuit protection features provides efficient, reliable and cost-effective solutions for high power applications. This device is designed for high efficiency, full power factor, wide operation range and overload protection. Additionally, due to its integrated features, the L6598D can easily be adopted into existing solutions.

Conclusion

The L6598D is an offline switcher IC specifically designed for applications where high efficiency and power density are needed. It is a perfect fit for applications that require high efficiency, full power factor, wide operation range and overload protection. Additionally, its advanced features, such as primary-side control, current control, valley-mode control and burst-mode control, make it highly versatile and easily adaptable to any existing solutions.

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