FSQ0365
Efficient power switches for AC/DC converters and SMPS applications
Manufacturer： ['fairchild', 'onsemi', 'freescale', 'rochester']
series introduction
The **FSQ0365 Series** is a highly efficient and reliable line of power switch ICs designed for use in offline switch-mode power supplies (SMPS). These ICs integrate a high-voltage power MOSFET with a pulse-width modulation (PWM) controller, making them an ideal solution for compact and energy-efficient power conversion systems. The series is particularly well-suited for low-power applications, offering a robust combination of performance, safety, and ease of design.
One of the standout features of the FSQ0365 Series is its **built-in high-voltage startup circuit**, which eliminates the need for an external startup resistor, simplifying the design process and reducing component count. This feature, combined with its **quasi-resonant operation**, ensures high efficiency across a wide load range, making it an excellent choice for energy-conscious applications. The series also incorporates advanced protection mechanisms, including over-voltage protection (OVP), over-current protection (OCP), and over-temperature protection (OTP), ensuring reliable operation under various conditions and enhancing system durability.
The FSQ0365 Series is designed with **low standby power consumption**, meeting stringent energy efficiency standards such as ENERGY STAR and EU ErP directives. This makes it particularly suitable for applications where minimizing power loss during standby or idle modes is critical. The ICs operate in a **fixed-frequency PWM mode** at heavy loads and seamlessly transition to **burst mode** at light loads, further optimizing efficiency and reducing power dissipation.
In terms of design characteristics, the FSQ0365 Series features a **compact and thermally efficient package**, enabling easy integration into space-constrained designs. Its **soft-start function** minimizes inrush current during startup, reducing stress on components and improving system reliability. Additionally, the series supports **wide input voltage ranges**, making it versatile for use in various power supply configurations.
Typical applications for the FSQ0365 Series include **AC-DC adapters, chargers, and auxiliary power supplies** for consumer electronics, home appliances, and industrial equipment. Its robust performance and integrated protection features also make it a popular choice for **LED lighting drivers** and **smart home devices**, where reliability and energy efficiency are paramount. Whether used in compact consumer gadgets or industrial power systems, the FSQ0365 Series delivers exceptional performance, making it a trusted solution for modern power supply designs.
Images for reference
8-SMD
8-DIP
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