The LTC3216EDE is a highly efficient, charge pump-based, constant-current LED driver designed by Linear Technology to cater to the needs of portable lighting applications. This compact and versatile device is engineered to drive up to eight LEDs in series, providing uniform brightness and enhancing the user experience in a variety of devices such as smartphones, digital cameras, and other portable electronics.
Key Features
- High Efficiency: The LTC3216EDE is designed for optimal power efficiency, which helps in prolonging battery life in portable devices.
- Adjustable Current Control: It offers precise control over LED current, allowing for adjustable brightness levels, which can be easily set through an external resistor or a PWM signal.
- Low Noise Operation: The device operates with a 1MHz fixed-frequency switching, minimizing noise and avoiding interference with RF and other sensitive circuits within the device.
- Thermal Protection: Integrated thermal shutdown ensures protection against overheating, enhancing the longevity and reliability of both the LED driver and the overall device.
- Compact Design: The LTC3216EDE comes in a compact, low-profile (0.75mm) 3mm x 3mm DFN package, making it ideal for space-constrained applications.
Technical Specifications
- Input Voltage Range: 2.7V to 4.5V
- Drive Capability: Up to 8 LEDs in series
- Output Voltage: Up to 32V
- LED Current: Up to 30mA per LED
- Quiescent Current: 0.3µA (shutdown)
The LTC3216EDE is not only a practical solution for portable LED driving requirements but also a testament to Linear Technology's commitment to innovation and quality. Its robust feature set ensures that it can meet the stringent demands of modern portable electronics, providing a reliable and consistent light source for a multitude of applications.
Whether you are designing a new portable device or looking to improve the efficiency and performance of an existing product, the LTC3216EDE from Linear Technology is an excellent choice for your LED driving needs.
