LTC3214EDD#TRPBF - LED Driver from Linear Technology

The LTC3214EDD#TRPBF is a high-efficiency, charge pump-based, constant-current LED driver designed by Linear Technology, now part of Analog Devices. This compact and feature-rich component is an ideal solution for driving LEDs in portable devices, where space is at a premium and efficient power use is essential.

Key Features

• High Efficiency: The LTC3214EDD#TRPBF utilizes a 1x/1.5x/2x fractional charge pump to maintain efficiency over a wide range of input voltages, ensuring minimal power loss and extended battery life in portable applications.
• Constant-Current Drive: It provides a constant current to up to eight LEDs, which is crucial for consistent brightness and color integrity. The current is programmable via a single external resistor, offering design flexibility and ease of use.
• Low Noise Operation: The device operates at 1MHz, allowing for small capacitors and inductors, which not only saves space but also minimizes noise, making it suitable for noise-sensitive applications.
• Thermal Protection: With built-in thermal protection, the LTC3214EDD#TRPBF safeguards itself and the LEDs from overheating, improving the reliability and lifespan of your application.
• Compact Package: Housed in a small 10-lead DFN package (3mm x 3mm), this LED driver is optimized for space-constrained applications, without compromising on performance.

Applications

The LTC3214EDD#TRPBF is versatile and can be used in a variety of applications, including:

• Cellular Phones
• Portable Media Players
• Digital Cameras
• Handheld Computers
• GPS Devices
• Other Portable Devices Requiring LED Backlighting

Technical Specifications

• Input Voltage Range: 2.9V to 4.5V
• Drive Capability: Up to 8 LEDs with 30mA each
• Switching Frequency: 1MHz
• Package: 10-Lead (3mm x 3mm) DFN
• Operating Temperature Range: -40°C to +85°C

Overall, the LTC3214EDD#TRPBF is a highly efficient, reliable, and user-friendly LED driver that meets the needs of modern portable electronics, providing consistent lighting while maximizing battery life.