The LT3517IFE is a highly integrated, multifunctional LED driver from Linear Technology that has been engineered to cater to a broad range of lighting applications. This driver is particularly suitable for automotive, display backlighting, and general-purpose LED illumination solutions. The LT3517IFE stands out with its ability to provide a constant-current and constant-voltage source, ensuring optimal performance for various LED configurations.
Key Features
- Wide Input Voltage Range: The LT3517IFE operates efficiently across a wide input voltage range from 3V to 30V, making it versatile for use in multiple applications, including those with fluctuating power supplies.
- Adjustable Switching Frequency: With a switching frequency that can be programmed between 250kHz to 2.5MHz, designers have the flexibility to optimize the driver for efficiency or component size.
- High Output Voltage Capability: This driver can provide an output voltage up to 45V, which is suitable for driving multiple LED strings in series, ensuring uniform brightness and simplifying design.
- Integrated Fault Protection: The LT3517IFE includes thermal shutdown, open LED and short-circuit protection, safeguarding the LEDs and the driver from potential damage due to abnormal operating conditions.
- PWM Dimming: It offers a wide dimming ratio with high dimming frequency capability, allowing for precise control over LED brightness while maintaining color fidelity.
Applications
- Automotive and Avionic Lighting
- Display Backlighting
- General LED Illumination
Package and Reliability
The LT3517IFE is available in a thermally enhanced 16-lead TSSOP package, which is designed to improve heat dissipation and ensure long-term reliability. With its robust design and comprehensive protection features, the LT3517IFE is a reliable choice for demanding lighting applications.
Conclusion
Linear Technology's LT3517IFE brings together a wide input voltage range, high output capability, and extensive protection features, making it an excellent choice for designers looking to create efficient, reliable, and high-performing LED lighting solutions.
