LTC3220 (8)

Eighteen 20mA Universal Current Sources with 64-Step Linear Brightness Control: This feature allows precise control over the brightness of each LED, enabling smooth dimming and enhancing the visual quality of displays. It is particularly beneficial for applications requiring dynamic lighting adjustments, such as video phones or keypad lighting.
Low Noise Multi-Mode Charge Pump (1x, 1.5x, 2x) with Up to 91% Efficiency: The charge pump ensures efficient power conversion while minimizing noise, making it ideal for noise-sensitive applications like communication devices. Its high efficiency reduces power consumption and extends battery life in portable electronics.
Independent On/Off, Brightness Level, Blinking, and Gradation Control via I²C Interface: This feature provides granular control over each LED channel, allowing for complex lighting patterns and effects. It simplifies system design and enhances flexibility in applications such as general lighting or display backlighting.
Slew Limited Switching for Reduced EMI: By limiting the switching slew rate, this feature minimizes electromagnetic interference (EMI), ensuring compliance with regulatory standards and improving compatibility with other electronic components in the system.
Short-Circuit and Thermal Protection: Built-in protection mechanisms safeguard the device and connected LEDs from damage due to short circuits or overheating. This enhances reliability and longevity, making it suitable for demanding environments and continuous operation.