UCC37322DR

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PMIC - Gate Drivers are semiconductor devices used for controlling the on and off states of the power MOSFETs. They are used to control the switching frequency and minimize the switching losses in different applications. UCC37322DR is a PMIC – Gate Driver from Texas Instruments, which provides an improved switching performance for better efficiency in the applications. This article focuses on the application field of UCC37322DR, as well as the working principle of the device.

UCC37322DR is a PMIC - Gate Driver whose primary application field is automotive sleep-mode power control, but it is also well-suited for LED lighting applications such as LED backlight control, LED headlight control, LED flasher control and LED indicator control. It is designed to minimize switching losses during the transition from sleep to wake-up. The device offers fast switching and low resistance levels of operation.

The UCC37322DR consists of two fixed frequency high and low side gate drive outputs which are used to provided a synchronized gate drive to the power MOSFETs for power management and to minimize the switching losses. It includes an adaptive gate drive circuit which reduces both fall and rise times of the gate drive currents. This improved switching performance provides an efficient operation for the power management applications.

The working principle of the UCC37322DR is based on a single-channel high/low side driver which is integrated into the device. It also includes a booster which acts as an additional current path for high-side load. It supports low resistance RDS(ON) MOSFETs and helps to reduce the voltage stress on the device. The device also provides a hysteretic loop control to automatically adjust the switching frequency, allowing it to be used in various applications. Additionally, the device supports external synchronization and frequency modulation via the SYNC pin.

The performance of the UCC37322DR is further enhanced by the addition of undervoltage lockout and overvoltage protection. The device also offers a broad range of operation temperature, allowing it to be used in a wide variety of applications. Additionally, it comes with an enable/disable pin which helps to reduce the current consumption and provides a low power standby mode.

In conclusion, the UCC37322DR is a PMIC - Gate Driver from Texas Instruments which offers improved switching performance and efficient operation for the applications. Its primary application field is automotive sleep-mode power control, but it is also well-suited for LED lighting applications. It consists of two fixed frequency high and low side gate drive outputs, an adaptive gate drive circuit and a hysteretic loop control. It also includes several other features like undervoltage lockout and overvoltage protection, broad range of operation temperature and enable/disable pin, all of which provide an efficient operation for the power management applications.

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