LTC3801ES6#TRMPBF

LTC3801ES6#TRMPBF Application Field and Working Principle

Introduction

The LTC^®3801ES6#TRMPBF is a high performance, environment-friendly switching controller designed for DC/DC converters.

Application

The LTC3801ES6#TRMPBF is commonly used in systems with high voltage cells, such as solar, automotive, and telecoms applications. This switch controller offers a wide range of features designed to enhance system reliability, including built-in short circuit, overload and brown-out protection, as well as fault monitoring, to ensure reliable conversion even in the presence of brief transients and induced noise. In particular, its circuit design allows it to maintain excellent power efficiency throughout the entire input voltage range, while at the same time limiting the inrush current and avoiding hot spots. This in turn results in improved system reliability and greater efficiency at higher power levels.

Working Principle

The LTC3801ES6#TRMPBF adopts the voltage mode control technology to maintain stable output voltage despite changes in input voltage or load. It also adaptively adjusts the switching frequency, controlling the on and off time of the internal power FET conduction cycles while maintaining a fixed switching frequency throughout the entire output voltage range. The LTC3801ES6#TRMPBF also provides soft start of the output voltage ramp-up, which eliminates the output voltage overshoot caused by an abrupt input voltage change. When the voltage is sensed to be over the regulated output voltage, the controller immediately turns off the internal power FET and re-opens it until the output voltage stabilizes at the regulated voltage. In addition, the LTC3801ES6#TRMPBF also implements a protection control architecture to monitor the output voltage, input voltage, ground potential, internal temperature and other parameters, thus not only protecting the power supply itself, but also the charger connected to it.

Conclusion

In conclusion, the LTC3801ES6#TRMPBF is a high performance, environment-friendly switching controller designed for DC/DC converters that are targeted at high voltage cell applications. It features voltage mode control technology and adaptive switching frequency, providing a wide range of features designed to ensure reliability, improve system efficiency and reduce hot spots. In addition, it also implements protection control architecture to monitor various parameters, which ensures the protection of the power supply and charger connected to it.