STK672-110-E

The STK672-110-E is a high-performance PWM controller with wide applications and is commonly used in motor drivers, controllers and many other switch mode power applications. It is designed to provide a wide range of operational voltages for its system to maximize power savings as well as improve system reliability.

The main features of STK672-110-E includes: Low operating voltage: 7V - 36V; Linear output current range: 0.2A-2.2A; Output voltage range: 2V-35V; Over temperature protection: 60 ℃; Output current limit protection: 2.5A.

STK672-110-E is monolithic device with minimum external components, it is suitable for a wide range of applications and uses. The device is composed of two main components: Regulator and driver. The regulator takes the input voltage and converts it to a constant output voltage which is then fed to the driver. The driver then controls the voltage supplied to the external load.

Working Principle: The STK672-110-E operates on a single power supply with wide range of output current and adjustable output voltage. The device utilizes a synchronous Buck converter, which delivers a regulated output voltage. The output voltage is determined by the output voltage setting resistor connected to the VREF pin. The voltage fed to the external load is controlled by a pulse width modulation (PWM) signal, which is generated by the device.

The PWM signal is generated by the internal oscillator. The oscillator frequency is determined by the value of the frequency setting resistor connected to the OSC pin. The duty cycle can also be adjusted by sending a signal to the TON pin. The amount of time the signal is active will determine the duty cycle.

In addition to the main components, STK672-110-E also has other features to enhance the performance of the system. These include overvoltage, overload, overcurrent and over temperature protection, as well as undervoltage lockout. The device also contains a soft-start feature to ensure smooth start-up and reduced in-rush currents.

In conclusion, the STK672-110-E is a high-performance PWM controller and is suitable for motor controllers and switch mode power applications. It provides a wide range of operational voltages and protection features to ensure system reliability. It can also be used to adjust the output voltage and pulse width to maximize power savings.