Introducing the L6668TR Controller IC from STMicroelectronics

STMicroelectronics, a global semiconductor leader, presents the L6668TR, a highly integrated controller IC designed for high-efficiency power conversion applications. This advanced controller is particularly suitable for switched-mode power supplies (SMPS) and is engineered to deliver superior performance in a compact footprint.

Key Features of the L6668TR

• High-Voltage Startup: The L6668TR features an integrated high-voltage startup circuit, which enables the controller to operate directly from the rectified mains voltage. This reduces the number of external components required, simplifying design and reducing overall system cost.
• Advanced PWM Controller: At the heart of the L6668TR is an advanced Pulse Width Modulation (PWM) controller, which provides accurate control of the power supply output. This ensures high efficiency and reliability for a wide range of applications.
• Adjustable Overcurrent Protection: The device includes an adjustable overcurrent threshold, allowing designers to tailor the protection features to the needs of their specific application, enhancing system safety and longevity.
• Burst Mode Operation: To maximize efficiency at light loads, the L6668TR supports burst mode operation, which significantly reduces power consumption when the load demand is low.
• Multiple Protection Features: With a suite of protection features such as overvoltage, overload, and thermal shutdown, the L6668TR ensures the power supply is safeguarded against a range of fault conditions, promoting system reliability.

Applications

The L6668TR is versatile and can be used in a variety of applications, including:

• AC-DC adapters
• Offline battery chargers
• LED lighting systems
• Consumer electronics
• Standby and auxiliary power supplies

Package and Availability

The L6668TR is available in a compact and industry-standard package, ensuring compatibility with a wide range of PCB layouts and simplifying the integration process. STMicroelectronics provides full technical support and comprehensive datasheets to assist developers in implementing this controller in their designs.

With its combination of features, the L6668TR stands as an excellent choice for designers looking to create efficient, reliable, and cost-effective power solutions.