New maintenance-free motor drive inverters have been launched by Infineon Technologies AG for application in the robotics and automation industries. The CoolSiC metal-oxide semiconductor field-effect transistor (MOSFET) with .XT interconnection technology in a 1200 V optimized D 2PAK-7 surface mount device (SMD) package enables passive cooling.
With up to 80% loss reduction compared to a silicon-based solution, the device eliminates the need for cooling
Source: Infineon Technologies AG fans and related services and results in both maintenance and materials savings. The devices enable high efficiency in various power ratings for servo drive solutions in compact charging infrastructure, industrial power supply and other applications.
A servo drive is the “activator” of the motor in manufacturing equipment, and Ohmic conduction losses and fully controllable switching transients of silicon carbide MOSFETs are a perfect match with the load profile of such motors. The new CoolSiC MOSFET SMD devices come with a short-circuit withstand time of 3 µs, meeting servo motor requirements where relatively small inductors and short cables are in use.
The new portfolio is rated from 30 mΩ up to 350 mΩ. The .XT technology allows up to 30% extra loss to be dissipated through the chip-package interconnection compared to standard packages. The CoolSiC .XT portfolio shows best-in-class thermal performance and cycling capabilities, resulting in up to 14% higher output current, or doubled switching frequency, or 10 to 15 K lower operating temperatures compared to standard technology.
