The LT3518IUF#PBF is a versatile and robust LED driver integrated circuit (IC) from Linear Technology, designed to provide a complete solution for driving high-power LEDs with precision and efficiency. This compact and highly integrated IC is ideal for a wide range of applications, including automotive lighting, industrial displays, and general illumination.

Key Features

• Wide Input Voltage Range: The device operates with a supply voltage from 3V to 30V, making it well-suited for applications with varying input conditions.
• Internal 2.3A Switch: The LT3518IUF#PBF includes an internal 2.3A, 45V switch that can drive up to eight 350mA white LEDs in series from a 12V input, delivering in excess of 20 watts.
• Adjustable Frequency: The switching frequency is adjustable from 330kHz to 2.2MHz, allowing designers to optimize efficiency while minimizing external component sizes.
• PWM and Analog Dimming: It features both PWM and analog dimming capabilities, providing flexibility in controlling the brightness of the LEDs.
• Robust Thermal Performance: The LT3518IUF#PBF is available in a thermally enhanced 16-lead TSSOP package with exposed pad for improved thermal dissipation.

Protection Features

• Open LED Protection: The IC protects against open LED conditions, ensuring reliability and safety in the event of a circuit interruption.
• Short-Circuit Protection: It also includes short-circuit protection, which safeguards the device and the LEDs from potential damage.
• Thermal Shutdown: An internal thermal shutdown feature provides additional protection by turning off the device if it reaches an excessive temperature.

Applications

• Automotive and Avionic Lighting
• Industrial and Architectural Lighting
• LED Backlights
• General Purpose LED Illumination

The LT3518IUF#PBF from Linear Technology is a highly-integrated and efficient solution for driving high-brightness LEDs. Its comprehensive set of features and protections makes it a reliable and flexible choice for advanced lighting solutions.