TI introduces the smallest and fastest GaN drive in the industry and expands its GaN power product portfolio

Two New FET Drivers Enable Nanosecond LiDAR Applications and 50MHz DC/DC Converters

Texas Instruments announced two new high-speed Gallium Nitride (GaN) Field-Effect Transistor (FET) drivers to further expand its industry-leading GaN power product portfolio for LIDAR and 5G RF (RF) ) Speed-critical applications such as envelope tracking enable more efficient, higher performance designs. The LMG1020 and LMG1210 can increase the efficiency while providing a switching frequency of 50 MHz, and can achieve a 5x smaller size solution that previous silicon MOSFETs cannot achieve.

With the industry's best drive speed and a minimum pulse width of 1 ns, the LMG1020 60-MHz low-side GaN driver can use high-precision lasers in industrial LIDAR applications. The small wafer-level chip (WCSP) package size is only 0.8 mm x 1.2 mm, which helps minimize gate loop parasitics and losses, further increasing efficiency.

The LMG1210 is a 50-MHz half-bridge driver designed for GaN field-effect transistors up to 200 V. The device's adjustable dead-time control can increase the efficiency of high-speed DC / DC converters, motor drivers, Class D audio amplifiers, and other power conversion applications by up to 5%. Designers can use the industry's highest Common Mode Transient Immunity (CMTI) over 300 V / ns to achieve high system noise immunity.

Key Features and Benefits of LMG1020 and LMG1210

High-speed: These devices provide very fast propagation delays (2.5 ns [LMG1020] and 10 ns [LMG1210]), allowing the power solution to be 50 times faster than using silicon drivers. In addition, the LMG1020 can provide high power 1ns laser pulses for remote LIDAR applications.

High efficiency: Both devices can achieve high efficiency designs. The LMG1210 offers 1 pF of low switching node capacitance and user-adjustable dead-time control, which can increase efficiency by up to 5%.

Power Density: The dead-time control integration in the LMG1210 reduces component count and increases efficiency, allowing designers to reduce power supply size by up to 80%. The increased power density of the LMG1020 enables LIDAR to have the industry's smallest package and highest resolution.

Author：Brittany Antonia （The author of article owns the copyright.）