FSQ500L

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The FSQ500L is an off-line switching power converter, classified under PMICs - AC/DC Converters and Offline Switchers. The converter features tight coupling of control and power, which makes it ideal for use in consumer, industrial and communication applications, where complex power management is required. The FSQ500L is a single-stage Pulse Width Modulation (PWM) off-line flyback converter with an integrated PWM controller, MOSFETs, transformer and protection components. This converter is capable of operating at very high efficiency and is suitable for a wide variety of products.

The FSQ500L includes a high efficient wide-range switch mode PWM control for load and line regulation. This allows for control over the output voltage and current, which helps to reduce power consumption, improve performance, and simplify thermal design. The integrated high side and low side MOSFETs reduce the external components count. Protection circuitry is also integrated with robust high voltage ruggedness for better performance and system reliability.

The FSQ500L is designed for off-line applications where universal input voltage ranges from 90VAC to 265VAC. Tight load and line regulation ensures a stable output with low total harmonic distortion over a wide load range. Output voltages are configurable and available in 5V, 12V and 15V. The operating temperature range is -40℃ to +85℃ and the maximum output power is 10W.

The FSQ500L includes multiple feedback control and protection features. The voltage mode based PWM control allows for rapid transient response with good load and line regulation. It includes an internal soft-start circuitry and an output over current protection to ensure stable operation. Additionally, the auto-restart function allows the converter to stay on even during a continuous overload or a short circuit fault condition.

The FSQ500L is a highly efficient and reliable converter, which can be used in a wide range of applications such as consumer, industrial and communication equipment. The well-designed control loop ensures tight voltage and current regulation, and the integrated protection functions provide better performance and higher system reliability. The converter also offers cost and space savings by eliminating the need for additional components.

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