UCC28C40DGKG4 Integrated Circuits (ICs)

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The UCC28C40DGKG4 device is a high-performance synchronous rectified buck PWM controller that is suitable for a wide range of DC/DC switching applications. It features a low RDS(ON) MOSFET gate driver for lower switching losses, plus EMI reduction capabilities which allow for increased utilization of non-dissipative components. The UCC28C40DGKG4 has a wide input voltage range, two integrated low-side drivers, adjustable switching frequency, and adjustable soft start.

The input voltage range for the UCC28C40DGKG4 is 8V to 32V, allowing for a variety of low-voltage operations. The low-side drivers are capable of driving up to 700mA of current, which makes it suitable for use in high-power applications. Additionally, the device has a fixed frequency current-mode architecture that provides excellent line and load regulation, as well as fast transient response times. The adjustable soft start feature allows the power-supply designer to tailor the ramp-up time to the specific application. Finally, the device is available in either a TSSOP-14 or QFN-14 package, making it suitable for a variety of applications.

There are a variety of applications in which the UCC28C40DGKG4 is used. These include servers, modems, wireless access points, set-top boxes, LCD displays, motor control applications and other portable electronic products. The device is also suitable for automotive and industrial applications, due to its robust design and the ability to operate in extreme temperatures and vibration environments. Additionally, the device can be used in battery-powered systems due to its low-power operation and high efficiency.

The UCC28C40DGKG4 works by regulating input voltage through pulse-width modulation, which is generated from a current sense signal. The internal error amplifier senses the output voltage and adjusts the duty cycle, or pulse-width, of the control voltage accordingly. The device then switches the output current, which is induced in proportion to the duty cycle. This process allows for precise voltage regulation without negative feedback, and is known as constant-on-time control.

The UCC28C40DGKG4 also features MOSFET gate drive circuitry for both high-side and low-side MOSFETs. This enhances system reliability and reduces switching losses, allowing for higher efficiency operation. Additionally, the device has an adjustable switching frequency and adjustable soft start to tailor it to the desired system requirements. Finally, the UCC28C40DGKG4 can be combined with an external power MOSFET to create a complete DC/DC converter solution.

In conclusion, the UCC28C40DGKG4 device is a high-performance synchronous rectified buck PWM controller that is suitable for a variety of DC/DC switching applications. It features a wide input voltage range, two integrated low-side drivers, adjustable switching frequency, and adjustable soft start. The device is suitable for use in servers, modems, wireless access points, set-top boxes, LCD displays, motor control applications and other portable electronic products, as well as high-temperature and vibration environments. Additionally, it can be used in battery-powered systems due to its low-power operation and high efficiency. The UCC28C40DGKG4 works by regulating input voltage through pulse-width modulation, and can be combined with an external power MOSFET to create a complete DC/DC converter solution.

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