STK672-740A-E

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

The STK672-740A-E is a Poly-Phase Motor Driver IC for brushless motor applications, most commonly used in brushed motor control applications. It is a highly integrated solution that includes dual 4-FET power MOSFETs, a pair of high-efficiency buck converter current sensing MOSFETs, dual low-side MOSFETs, a current limiter, six internal feedback resistors, a differential amplifier, and a switching regulator. It is designed to operate as a two-phase, four-coil system. The IC operates a brushless motor using two phases energized at a time to reduce the amount of electrical noise radiated, while providing efficient control of the motor current.

The STK672-740A-E is designed to be used in applications such as PC fans, DC brushless motors, cooling fans, and pumps. The IC has the flexibility to brushless motor applications with a wide variety of power sources, making it suitable for applications requiring high-power operation. The STK672-740A-E also utilizes over temperature, current limit, and over voltage protection features, providing protection for the application and its components.

The STK672-740A-E employs a switching regulator topology, and is capable of delivering a continuous amount of current depending on the applied voltage and load requirements of the application. When the application is running in low power mode, the voltage applied to the motor is lower resulting in lower motor speed and current consumption. In higher power modes, the voltage is increased to provide more current and power, resulting in increased motor speed.

The STK672-740A-E is designed to be used as part of a full-bridge circuit, but can be also adapted to external 3-phase circuits. It is designed to be used in applications requiring the high accuracy and fast response of a brushless motor. The STK672-740A-E can be used to control the speed of the fan or motor and ensure that the specified speed is maintained, regardless of changes in the voltage applied to the motor.

The STK672-740A-E employs a differential amplifier which allows the IC to accurately measure the current that is drawn from each of the motor’s four coils. This allows the IC to accurately adjust the amount of current being applied to the motor. This ensures that the motor is running with an optimal amount of current, leading to accurate motor control and improved motor efficiency.

The STK672-740A-E also contains an on-chip current limiter which prevents the motor from applying an excessive amount of current to the motor during its start up operation. This ensures that the motor has the correct amount of current applied to it without creating excessive heat in the motor or overloading the power supply.

As is the case with all brushless motor systems, the STK672-740A-E requires a sensing system to control the motor current. The IC has an integrated quiescent current sensing circuit which monitors the overall system current and can be used to adjust the amount of current being applied to the motor. The current sensing circuit also helps to reduce electrical noise generated by the system, ensuring that the application is operating at the correct levels of maximum current.

In conclusion, the STK672-740A-E is a highly integrated motor control solution for brushless motor applications that provides energy efficient and accurate motor control. The IC includes a number of features, such as over temperature/current limit and over voltage protection, as well as integrated current sensing, which makes it suitable for a wide range of applications. As a result, the STK672-740A-E is an ideal solution for motor applications requiring high performance, accuracy, and reliability.

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