New family of integrated single switches and half-bridges with integrated drivers

Many trends are taking centre stage in consumer electronics and industrial applications, such as portability, electrification, and weight reduction. All of these require compact and efficient designs. They also go hand in hand with unconventional PCB designs with severe space constraints that limit the use of external components. Infineon Technologies AG has expanded its GaN portfolio with the CoolGaN Drive product family to address these challenges. It comprises the CoolGaN Drive 700V G5 single switches, integrating one transistor plus gate driver in PQFN 5x6 and PQFN 6x8 packages, as well as the CoolGaN Drive HB 600V G5 devices, combining two transistors with integrated high and low-side gate drivers in an LGA 6x8 package. The new product family allows improved efficiency, decreased system size, and overall cost savings.

“For several years, Infineon has been focused on accelerating innovation in GaN to provide targeted solutions for real-world power challenges,” said Johannes Schoiswohl, senior vice president and general manager of the GaN Systems Business Line Head at Infineon. The new CoolGaN Drive product family is another proof point of how we support our customers in developing compact designs with high power density and efficiency through GaN.”

The family provides a wide range of single switches and half bridges with integrated drivers based on the recently announced CoolGaN Transistors 650V G5. Depending on the product group, the components feature a bootstrap diode and are characterised by loss-free current measurement and adjustable switch-on and switch-off dV/dt. They also provide OCP/OTP/SCP protection functions. As a result, the devices allow higher switching frequencies, leading to smaller and more efficient system solutions with high power density. At the same time, the BoM is lowered. This not only results in a lower system weight but also decreases the carbon footprint.

The devices are suited for longer-range e-bikes, portable power tools, and lighter-weight household appliances such as vacuums, fans, and hair dryers. Samples of the half-bridge solutions are available now.