FSFR1700

The FSFR1700 is a high-energy-density, highly integrated, easy-to-use offline switcher power conversion chip that offers improved efficiency, power savings and innovative features. It is a synchronous buck converter designed for high-performance AC/DC and DC–DC power systems. It offers superior transient response, low-profile inductors, and adjustable soft-start for improved system reliability. The FSFR1700 offers a wide range of capabilities, allowing designers to make power supplies that meet their application’s unique needs.

Application Fields of FSFR1700

The FSFR1700 device is an optimal choice for a variety of applications. It offers excellent performance, high efficiency, and high power density. It can be used in high-current applications such as LED lighting, LED displays, power-over-Ethernet, battery chargers, power adaptors, AC-DC converters, and more. It is also suitable for low-current applications such as embedded or mobile-device power, ultra-low-power applications, and wireless systems. Additionally, it can be used for supercapacitors, ultracapacitors, and automotive power systems.

Working Principle of FSFR1700

The FSFR1700 synchronous buck converter consists of a control circuit, an error amplifier, an oscillator, a comparator, a reference voltage source, a gate driver, and various field-effect transistors (FET). The control circuit and the error amplifier receive an input signal and compare it with reference voltage generated by the on-chip voltage reference. The output is then adjusted according to the comparison. The oscillator generates the pulse width modulation (PWM) signal, and the comparator provides the switching status of the FET.

The FSFR1700 uses synchronous rectification to improve efficiency. It also features an internal soft start, which improves system reliability and prevents large in-rush current during startup. The device also features a low-noise frequency synthesizer, allowing designers to select a frequency to suit their application within a wide range. Additionally, the device offers various protection features to keep the system safe from overcurrent, overtemperature, and short-circuit conditions.

Conclusion

The FSFR1700 is a versatile, powerful, and energy efficient synchronous buck converter. It is an ideal solution for a variety of applications, from high-current applications like LED lighting to low-current applications such as embedded power. It offers superior performance, high efficiency, low-profile inductors, adjustable soft-start, and various protection features, making it a reliable, low-cost solution for designers and engineers. This device enables designers to make power supplies that meet their unique needs in the most cost-effective way.