Three-Phase Integrated GaN Intelligent Power Module for Smart Home Appliances and HVAC Systems

Texas Instruments has introduced the new 650V three-phase GaN IPM for 250W motor drive applications. The new GaN IPM addresses many of the design and performance compromises engineers typically face when designing major home appliances and heating, ventilation and air-conditioning (HVAC) systems. The DRV7308 GaN IPM enables more than 99% inverter efficiency, optimized acoustic performance, reduced solution size and lower system costs. 

Enabled by GaN technology, this new IPM delivers high power density in a 12mm-by-12mm package, making it the industry's smallest IPM for 150W to 250W motor-drive applications. Because of its high efficiency, the DRV7308 eliminates the need for an external heatsink, resulting in motor drive inverter printed circuit board (PCB) size reduction of up to 55% compared to competing IPM solutions. The integration of a current sense amplifier, protection features and inverter stage further reduces solution size and cost.

Features

• Three-phase PWM motor driver with integrated 650V enhancement mode GaNFETs
• Up to 450V operating voltage
• 500ns minimum low side on time support with integrated fast bootstrap GaN rectifier
• Low-side GaN FET open source pins to support 1- or 2- or 3-shunt current sensing
• Supports up to 60kHz hard switching
• Integrates a 11MHz, 15V/µs amplifier for single shunt current sensing
• Supports 3.3V and 5V logic inputs
• Integrated BRAKE functionality to turn on all low side GaN FETs together
• Integrated temperature sensor

Applications

• Smart home appliances
• Brushless DC motor modules
• Appliances and HVAC pumps and fans
• Air conditioners

Availability & Pricing

Pre- production quantities of the DRV7308 three-phase, 650V integrated GaN IPM are now available and pricing starts at US$5.50 in 1,000-unit quantities.