LT3680EDD#PBF

LT3680EDD#PBF Application Field and Working Principle

LT3680EDD#PBF is a highly integrated dual-channel LEDⓇ driver IC that is able to drive up to 1A of LED current. It is available in the 16-lead QFN package and is capable of delivering both current and voltage outputs.

The LT3680EDD#PBF is a monolithic power management IC optimized for driving LEDs. In addition to the LEDs, it is also capable of driving a variety of other loads. its primary function is to provide a precise regulated current source/sink to power up to two LEDs in many different applications. The LT3680EDD is a buck-boost power supply that is capable of sourcing or sinking up to 1A from each channel. It also offers programmable over-voltage, over-current, and short-circuit protection.

Features and Benefits

The LT3680EDD offers a wide range of features and benefits, such as:

• High-Efficiency, Low-Voltage Operation: The LT3680EDD can operate from a 0.7V to 32V input voltage range, while maintaining high efficiency across the entire input range.
• Wide Output Voltage Range: The LT3680EDD is capable of providing output voltages from 0.1V to 35V.
• LED Current Sense: The LT3680EDD provides LED current sensing and current-limiting capability.
• Soft-Start: The LT3680EDD has an adjustable soft-start feature to reduce in-rush current surge.
• Wide Range of Loads: The LT3680EDD can drive a variety of inductive, capacitive and resistive loads.

Applications

The LT3680EDD#PBF is suitable for a wide range of applications, including:

• LED Driver Applications
• High-Voltage DC/DC Conversion Applications
• Low-Voltage, High-Efficiency DC/DC Conversion Applications
• Battery Charger Applications

Working Principle

The LT3680EDD#PBF is a monolithic switching regulator that uses a pulse width modulation (PWM) technique to control the output current and voltage. It uses an internal, high-voltage, MOSFET to provide the current and voltage regulation. The pulse width modulated signal is generated by an oscillator, which is adjustable. This allows the current and voltage to be precisely controlled. The current and voltage output are adjustable using external resistors. The LT3680EDD also provides full cycle-by-cycle current limit and short-circuit protection.

Conclusion

The LT3680EDD#PBF is a high-efficiency, dual-channel LED driver IC with a wide range of features and benefits. It is suitable for driving a variety of loads with precise current and voltage control. It is easy to use, with adjustable settings to allow fine-tuning of the output current and voltage. The LT3680EDD is suitable for a wide range of applications, such as LED driver applications, high-voltage DC/DC conversion applications, and low-voltage, high-efficiency DC/DC conversion applications.