The LT3475FE1 is a highly efficient, dual-output DC/DC converter specifically designed to drive LEDs. Manufactured by Linear Technology, a leader in the field of analog integrated circuits, this product stands out for its ability to provide a constant current to ensure uniform brightness in LED applications.

Key Features

• Wide Input Voltage Range: The LT3475FE1 operates from a wide input range of 3V to 30V, making it versatile for a variety of power supply configurations.
• Dual Independent LED Drivers: It contains two independent driver channels, each capable of driving up to ten white LEDs in series, ensuring consistent lighting levels across multiple LEDs.
• True Color PWM Dimming: The device offers a true color pulse-width modulation (PWM) dimming, which delivers constant LED color with dimming ranges up to 3000:1.
• High Efficiency: With efficiencies up to 85%, the LT3475FE1 is designed to maximize battery life in portable applications and reduce power consumption in general lighting applications.
• Integrated Soft-Start: The integrated soft-start feature limits inrush current at startup, which is crucial for preventing premature component failure.

Applications

The LT3475FE1 is ideal for a range of applications, including:

• LED Backlighting
• Automotive and Avionic Lighting
• Display Backlighting
• General Purpose LED Illumination

Protection Features

Linear Technology understands the importance of device longevity and reliability. The LT3475FE1 includes several protection features:

• Open LED Protection: Prevents damage to the driver when an open LED condition is detected.
• Short-Circuit Protection: Shields the device from damage during output short-circuit conditions.
• Thermal Protection: An internal thermal shutdown feature protects the device from overheating.

With its robust design, comprehensive protection features, and high efficiency, the LT3475FE1 from Linear Technology is a top choice for engineers and designers looking to create reliable, high-performance LED lighting solutions.