UCC37323DGNR

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Introduction

UCC37323DGNR is a high-performance gate driver device designed using advanced Mixed-Signal Technology. It is a high-speed PMIC - Gate Drivers, providing the user with the highest level of accuracy, speed, and flexibility. It uses advanced, low-power technologies and provides excellent performance in many types of operations. UCC37323DGNR is an ideal choice for powering up as well as powering down applications that require accurate and high-speed driving currents.

Application Field

UCC37323DGNR is most commonly used for driving high current loads. It is suited for switching wide range of voltages and currents. The high-side and low-side output currents can easily be programmed from 0–120 A with a resolution of 0.25 A, enabling precise current control. The maximum output current is also limited by the version of the device, with some versions being able to deliver up to 120 A. UCC37323DGNR also features a short-circuit protection for both the high-side and low-side outputs, effectively preventing ground bounce and over-current conditions.

UCC37323DGNR is mainly used in power supplies, motor control, automotive and general industrial applications, such as switches, solenoids, and loads with switching frequency in the range of 40-60kHz. It is also suitable for LED lighting applications, as the device is capable of providing high precision and fast switching speed. Additionally, UCC37323DGNR has a wide operating temperature range and can support up to 500 V of output voltage.

Working Principle

The UCC37323DGNR is controlled by both digital and analog signals. It operates in two working modes, shutdown and high-speed. Using digital inputs, the user sets the output voltage level, current level, and speed. The digital input from the user is received by the device’s microcontrollers, which are then used to set the necessary settings. The high-side and low-side outputs are then driven by a DMOS transistor pair, providing accurate, stable current levels.

UCC37323DGNR uses an intelligent charge-pump circuit for over-voltage protection. The over-voltage protection monitor constantly checks the voltage of the power supply. Once the voltage exceeds the pre-defined limit, the on-board microcontroller will immediately shut off the high-side and low-side outputs, protecting the device and the system from any possible damage.

In addition to its high-power output capability, the UCC37323DGNR also features an adjustable slew rate and current limit, which provides the user with the ability to control the rise and fall times of the output current. This makes the device very suitable for applications that require precise current control, as well as applications that require a fast rise time.

Conclusion

Overall, UCC37323DGNR is an excellent choice for PMIC - Gate Drivers applications that require high-currents, precise current control, fast rise times, and over-voltage protection. The digital and analog inputs work together to ensure that the current levels are precisely controlled, and the adjustable slew rate makes it easy to adjust the device for different types of loads. UCC37323DGNR can be used in a variety of applications, from motor control and LED lighting, to general industrial and automotive applications.

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