Infineon Fast IC Motor Driven Applications

Infineon Technologies has announced new members to its NovalithIC family of integrated driver ICs for motor drive applications, adding RoHs compliant and faster switching versions. The NovalithIC combines three integrated circuits in one small package, using chip-by-chip as well as chip-on-chip technologies. This device cuts by half the space needed on a printed circuit board for power electronics driving motor applications with industry leading currents of up to 70 Ampere.

According to Infineon, the NovalithIC can be use in motor drive applications like automotive heating, ventilation air-conditioning systems (HVAC), seat belt systems and fuel pumps as well as in industrial applications such as battery driven power drillers and grinding machines. With the latest version, the BTN7971B, Infineon achieved to double the switching speed of the previous devices, further reducing the switching losses by 50 percent.

“With our new “green” and faster versions of NovalithIC, designed for a broad range of automobile applications in the area of safety, body & comfort we help to increase the energy efficiency of electrical motor applications and of automobiles in general,” said Georg Lipperer, Senior Director and Head of Marketing at the Automotive Power Business Unit at Infineon Technologies. “Infineon uses state-of-the-art chip-by-chip and chip-on-chip package technologies which make the NovalithICs extremely robust while offering it in a lead-free package. This is how we understand automotive excellence.”

A NovalithIC chip contains one p-channel highside MOSFET and one n-channel lowside MOSFET with an integrated driver IC in one package. As the on state resistance is typically just 16 mOhm and the quiescent current just 7 µA the device has a very energy efficient footprint marking another benefit of this device. The architecture eliminates the need for a charge pump thus minimizing EMI (Electro Magnetic Interference).