UCC3803NG4

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UCC3803NG4 Application Field and Working Principle

The UCC3803NG4 Positive High-Side Gate Driver is a part of a series of integrated circuit solutions by Texas Instruments. It is classified under PMIC (Power Management Integrated Circuitry), Voltage Regulators, and DC DC Switching Controllers. This multi-channel gate driver is designed with a range of features including on-chip UVLO (under-voltage lockout), over-temperature shutdown, bootstrap capacitor, and a low-cost package option. It has been recognized as the industry\'s lowest loss, highest efficiency, and most cost-effective gate driver.

Application Field

Due to its impressive feature set, the UCC3803NG4 is an ideal integrated circuit solution for end-applications in the automotive, industrial automation, HVAC, power supply, motor control, and photovoltaic markets. It is also often used in high-side gate driving applications such as DC/DC converters, power factor correction, LED lighting, and other high current drives. Additionally, the device features a variety of flexible integration capabilities, making it possible to develop custom systems.

Working Principle

The UCC3803NG4 Positive High-Side Gate Driver operates using an on-chip logic gate and internal drive circuitry. Its logic gate is designed to monitor and regulate the voltage level for a high-side power switch. Its internal drive circuitry will then provide a low-loss gate-drive signal to the switched device. When the input voltage reaches the UVLO, the UCC3803NG4 will shut off the load device until the voltage level rises to the enable level, activating the internal gate drive.

Additionally, the UCC3803NG4 features three control and protection functions: bootstrapping, over-temperature, and under-voltage lockout. Bootstrapping allows the device to drive high-side devices above their source voltage, while the over-temperature and under-voltage lockout protect the system against dangerous temperature and input voltage conditions. Together, these features guarantee maximum system-level performance and reliability in high-side gate driving applications.

Conclusion

The UCC3803NG4 Positive High-Side Gate Driver is a powerful and reliable multi-channel integrated circuit solution suitable for a wide variety of end-applications. It classifies under PMIC (Power Management Integrated Circuitry), Voltage Regulators, and DC DC Switching Controllers. The driver utilizes an on-chip logic gate and drive circuitry to monitor and regulate the voltage level of a high-side power switch. It is equipped with three control and protection functions: bootstrapping, over-temperature, and under-voltage lockout. With its impressive feature set, the UCC3803NG4 is sure to provide maximum reliability and efficiency in high-side gate driving applications.

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