KA5L0380R

The KA5L0380R is a highly integrated power switch intended for use in electronic power supply circuits. It is part of the Fairchild Power Switch (FPS) series, combining a high-voltage power MOSFET and a current-mode PWM (Pulse Width Modulation) controller into a single package. This integration helps simplify the design of compact and efficient switch-mode power supplies.
Key features of the KA5L0380R include overcurrent protection, overvoltage protection, thermal shutdown, and an internal startup circuit, which enhance reliability and safety. The device operates with high efficiency, reducing power loss and heat generation. Its compact form factor aids in minimizing the overall size of power supply units.
The KA5L0380R is commonly used in applications such as chargers, adapters, and small power supplies where space and energy efficiency are critical. By integrating multiple functions into one component, it helps reduce the number of discrete components required, simplifying the design and assembly processes.

The KA5L0380R is an integrated PWM controller and MOSFET used in power supply applications. Equivalent products include:
1. Fairchild/ON Semiconductor: FSQ0365RTY, FSQ0465RTY
2. Power Integrations: LNK series (e.g., LNK304, LNK305)
3. Infineon Technologies: ICE2QR series
4. STMicroelectronics: VIPer22A, VIPer12A
When selecting an equivalent, ensure compatibility with your specific application requirements such as voltage, current, and power ratings.

The KA5L0380R is a Fairchild/ON Semiconductor integrated circuit primarily used as an offline switch mode power supply (SMPS) controller. Key features include:
1. Integrated PWM Controller and Power MOSFET: Combines a Pulse Width Modulation controller with a high-voltage power MOSFET to simplify design and reduce component count in power supply applications.
2. Advanced Burst Mode Operation: Offers improved efficiency at light loads by reducing power consumption, making it suitable for energy-efficient applications.
3. Protection Functions: Includes over-current protection, over-voltage protection, over-temperature protection, and under-voltage lockout to enhance reliability and safety.
4. Internal Startup Circuit: Eliminates the need for external startup components, which reduces overall system cost and complexity.
5. Low Standby Power Consumption: Designed to meet stringent global energy regulations, contributing to lower overall power consumption in standby mode.
6. Auto-Restart Function: Increases system robustness by automatically attempting to restart the power supply after a fault condition is cleared.
These features make the KA5L0380R a versatile component for designing efficient and compact power supplies in various electronic applications.

The KA5L0380R is an integrated PWM controller with a high-voltage power MOSFET designed for off-line switch-mode power supplies. It typically has 7 pins with the following functions:
1. GND (Ground): Common ground for all internal circuitry.
2. VCC (Power Supply): Supplies power to the IC.
3. DRAIN: Connected to the drain of the internal power MOSFET; used to switch the transformer or inductor.
4. FEEDBACK (FB): Receives voltage feedback from the output for regulation purposes.
5. VSTR (Startup): High-voltage pin used to charge the VCC capacitor during startup.
6. S-F (Source): Connected to the source of the internal MOSFET.
7. NC (No Connection): No internal connection.
The KA5L0380R is used for efficient power conversion in applications such as power adapters and chargers, where it controls the switching of an external transformer to regulate output voltage and current.

The KA5L0380R is manufactured by Fairchild Semiconductor. Fairchild Semiconductor was an American company that specialized in the design and manufacturing of semiconductors. It was a pioneer in the development and commercialization of silicon transistors and integrated circuits. Founded in 1957, Fairchild Semiconductor played a significant role in the growth of Silicon Valley and the broader electronics industry. The company was known for its contributions to the development of technologies that became foundational to modern electronics.
In 2016, Fairchild Semiconductor was acquired by ON Semiconductor (now onsemi), a company that continues to provide a broad range of semiconductor solutions. onsemi focuses on intelligent power and sensing technologies, addressing key markets such as automotive, industrial, cloud power, and the Internet of Things (IoT). With this acquisition, onsemi expanded its portfolio and strengthened its position in the semiconductor industry, continuing the legacy of innovation established by Fairchild Semiconductor.

The KA5L0380R is a power switch integrated circuit commonly used in applications requiring efficient power management and control. Its primary application areas include:
1. Switch Mode Power Supplies (SMPS): Used in adapters, chargers, and LED drivers.
2. Telecommunication Power Supplies: For stable and efficient power delivery.
3. Industrial Power Systems: In automation and control equipment.
4. Consumer Electronics: In devices like televisions, monitors, and audio systems for energy-efficient operation.
Its integrated protection features and high-voltage capabilities make it suitable for environments where reliability and efficiency are critical.

The KA5L0380R is typically packaged in a TO-220F package. This is a standard type for power components, offering a compact form with good thermal performance.