The LT3475EFE-1#PBF is a robust and versatile dual full-bridge LED driver integrated circuit (IC) from Linear Technology, designed to provide a high-efficiency solution for driving LEDs. This particular product is well-suited for applications requiring precise current regulation and multiple LED string operation, making it an ideal choice for automotive, industrial, and general lighting applications.

Key Features

• Wide Input Voltage Range: The device supports an input voltage range from 3V to 30V, accommodating a variety of power sources.
• Dual Independent LED Drivers: Each driver can drive up to 10 white LEDs in series, providing flexibility in controlling multiple LED strings.
• True Color PWM Dimming: The LT3475EFE-1#PBF offers a wide dimming ratio, enabling precise brightness control through PWM dimming.
• Internal Switches: The IC contains internal 1.5A switches, which simplify the design and reduce external component count.
• Adjustable Frequency: The switching frequency can be adjusted between 330kHz and 2.2MHz, allowing designers to optimize the driver for efficiency or to avoid sensitive frequency bands.
• Protection Features: It includes open LED and short-circuit protection, ensuring the longevity and reliability of the application.
• Thermal Shutdown: An internal thermal shutdown function provides additional protection against overheating.

Applications

The LT3475EFE-1#PBF is suitable for a wide range of applications, including:

• Automotive interior and exterior lighting
• Industrial lighting systems
• Backlighting for LCD displays
• General-purpose LED illumination

Package and Quality

The device is available in a thermally enhanced 16-lead TSSOP package, ensuring efficient heat dissipation during operation. The part number "LT3475EFE-1#PBF" specifies the lead-free and RoHS-compliant version of the IC, which meets modern environmental standards for electronic components.

With its high integration and feature set, the LT3475EFE-1#PBF from Linear Technology represents a compact, efficient, and reliable solution for advanced LED driving applications.