The LT3476EUHF from Linear Technology stands out as a versatile and robust quad-output DC/DC converter specifically designed to drive LEDs with constant current. The product's feature set makes it an excellent choice for a wide range of applications, including automotive, industrial, and general illumination LED systems.

Key Features

• Wide Input Voltage Range: With an input voltage range of 4.5V to 36V, the LT3476EUHF is suitable for a variety of power sources, including automotive batteries and industrial power rails.
• Quad Channel Output: This device can drive up to four LED strings, providing flexibility in design for complex lighting systems. Each channel has an independent current sense and shutdown pin, allowing for precise control and fault protection for each LED string.
• Adjustable Frequency: The switching frequency is adjustable from 200kHz to 2MHz, allowing designers to optimize the trade-off between efficiency and external component size.
• True Color PWM Dimming: The LT3476EUHF offers a wide dimming range with its True Color PWM feature, which maintains constant LED color with varying brightness levels.

Performance and Protection

The device ensures high performance with its internal 1.5A switch and can deliver up to 80mA of LED current per channel. Additionally, it includes several protection features such as open LED protection, short-circuit protection, and thermal shutdown, ensuring reliable operation under adverse conditions.

Compact and Efficient Design

Encased in a 5mm x 5mm QFN package, the LT3476EUHF is designed for space-constrained applications. Its high level of integration and small external component requirement contribute to a compact and efficient design, making it an ideal solution for portable and space-limited applications.

Applications

• Automotive and Avionic Lighting
• Display Backlighting
• Industrial and Architectural Lighting
• Portable and Battery-Powered Equipment

With its robust design, flexible features, and high efficiency, the LT3476EUHF from Linear Technology is a top-tier solution for driving multiple high-power LEDs in a broad spectrum of applications.