LM3643AEVM

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LM3643AEVM is an evaluation board designed for easy evaluation of the LM3643, a triple white LED driver with up to 88% efficiency. It is ideal for applications requiring direct driving of multi-channel white LEDs or controlling multiple white LEDs with serial data.

The LM3643AEVM features a wide input voltage range of 2.7V to 18V and a choice of up to three outputs. It can accommodate a wide range of input currents from 12mA to 200mA. The LM3643AEVM also supports a wide range of LED forward voltages from 4V to 40V and has a dimming range of 0.1% to 100%.

The LM3643AEVM employs an efficient current-mode control architecture which supports a variety of inputs including a high-precision analog voltage, high-precision digital control, and I2C/PWM serial data input. The LM3643AEVM also features both a buck and a boost topology, allowing it to be used in applications that require higher levels of current. Additionally, the LM3643AEVM features a unique ripple cancellation circuit, which helps reduce output ripple and improves the efficiency of the system.

The LM3643AEVM is engineered with a number of features, such as over-temperature protection, thermal shutdown and open-circuit protection, all designed to ensure that the system operates safely and robustly. It also offers adjustable soft-start time and adjustable EEPROM storage to facilitate a more accurate and stable operation, as well as a flexible dimming range. The LM3643AEVM is easy to use, and it is designed for simple compatibility with a range of development systems.

Overall, the LM3643AEVM is an ideal evaluation board for applications requiring multi-channel white LED drivers. It enables efficient direct driving of White LEDs with up to 88% efficiency, supports a range of inputs and features an efficient current-mode control architecture. Additionally, the LM3643AEVM includes several features to ensure safe and reliable operation in a wide range of environments.

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