PMIC - Gate Drivers

Power Management Integrated Circuit (PMIC) Gate Drivers are integrated circuits used to control the gate terminals of transistors. They provide an ideal way to drive the gate of a power MOSFET or IGBT. UCC27201DDAR is an example of a PMIC Gate Driver, used for driving power MOSFET or IGBT in resonant applications.

UCC27201DDAR Application Field

UCC27201DDAR is used in various applications such as:

• Motor drive applications
• Switch mode power supply
• Uninterruptible power supply
• Resonant half bridge LED drivers
• Converters

UCC27201DDAR Working Principle

The UCC27201DDAR is a driver IC that provides a low impedance path between the gate terminal of a transistor and the source connection. The IC works with a number of power transistors to control the voltage or current applied to the switching output. The driver IC has two inputs, such as the voltage mode (VMODE) and the current mode (CMODE). The VMODE input is used to control the voltage applied to the gate, while the CMODE is used to control the amount of current going through the gate terminal. Both inputs can be connected to a manual, mechanical, or analog control source.

The UCC27201DDAR includes two outputs, the Gate Voltage Drive (GVD) and the Drain Voltage Drive (DVD). The GVD output is used to drive the voltage on the gate terminals of the transistors, while the DVD output is used to drive the voltage on the drain terminal of the transistors. In some applications, UCC27201DDAR also supports a third output, the Drain Current Drive (DCD). This is used to drive the current on the drain terminals of the transistors.

The UCC27201DDAR offers a wide range of protection features such as under-voltage lockout, over-temperature shutdown, over-voltage protection, and over-current protection. Additionally, the IC includes selectable frequency modulation and slew rate control for better control of the switching frequency, and peak current for better performance and system stability.