UC3842N Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

UC3842N is a type of DC-DC switching controller that is designed to provide reliable and efficient DC voltage conversion in many different applications. It has a wide range of operating temperature, small size and steady performance. It is widely used in DC-DC inverters, battery charging systems, motor control and power supply protection.

UC3842N provides adjustable output voltage, programmable soft start and built-in fault protection features. It can work with various kinds of PWM control to implement various kinds of topology, such as buck, boost, buck-boost and flyback. Its on-chip current sensing and current limiting enable the controller to protect itself from over-current, short circuit, over-temperature and over-voltage situations.

UC3842N provides the microcontroller output pulse signal to the control switch, so that the output voltage can be changed accurately. It works in a way of voltage-mode control, which means that its output voltage is kept the same as the one of the reference signal inputted.

UC3842N has an on-chip oscillator, a PWM comparator, a current sense amplifier and a voltage sense amplifier. Its oscillator is an internal variable frequency oscillator, which is used to set the switching frequency of the power switch. The PWM comparator is used to compare the reference voltage and the voltage sense signal, so that the output voltage is kept the same as the reference voltage. The current sense amplifier is used to detect the output current, so that it can protect the controller from the over current situations. The voltage sense amplifier is used to detect the output voltage and adjust the switching frequency to keep the output voltage the same as the reference voltage.

In conclusion, UC3842N is a type of DC-DC switching controller designed to provide reliable and efficient DC voltage conversion in different applications. It works in a way of voltage-mode control, which provides adjustable output voltage, programmable soft start and built-in fault protection features. It is characterized by its wide range of operating temperature, small size and steady performance. It is an ideal choice for DC-DC inverters, battery charging systems, motor control and power supply protection.

The specific data is subject to PDF, and the above content is for reference