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EconoDUAL 3 with TRENCHSTOP IGBT7 for unmatched 900A power rating

19th December 2019

Anna Flockett

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Infineon Technologies AG introduced the new IGBT7 chip for its well-known Easy housing platform in March. Now it is taking the TRENCHSTOP IGBT7 to the arena of medium power: in the standard industry package EconoDUAL 3. In this chip technology, the 1200V module provides a leading nominal current of 900A enabling a 30% higher inverter output current for the same frame size compared with the former technology.

While specific improvements of the module’s chip and housing directly aim at industrial drive applications, it can also be very well implemented in designs for commercial, construction and agricultural vehicles (CAV), servo drives, as well as solar and UPS inverters.

Based on the new micro-pattern trench technology, the TRENCHSTOP IGBT7 chip performs with much lower static losses compared to the IGBT4. Its on-state voltage is reduced by up to 30 percent for the same chip area. This brings significant loss reduction in the application, especially for industrial drives, which usually operate at moderate switching frequencies. Additionally, the oscillation behavior and the controllability of the IGBT have been improved. The power modules feature a maximum allowed overload junction temperature of 175°C.

Another improvement concerns the freewheeling diode (FWD) which has also been optimized for drive applications. The forward-voltage drop of the emitter-controlled 7 ^th generation diode (EC7) is now 100 mV lower than the forward-voltage drop of the EC4 diode, with reduced oscillation tendency during diode turn-off.

The higher power density of the EconoDUAL 3 helps to avoid paralleling of modules, which leads to a simplification of the inverter design and lower costs. Moreover, the new technology can be implemented in the same footprint facilitating the upgrade of existing inverter system designs. The EconoDUAL 3 module comes with an improved housing for handling higher currents and temperatures. It is available with pre-applied thermal interface material (TIM) for lowest thermal resistance and longest lifetime. The PressFIT housing enables a fast and cost-efficient assembly.

The 900 A module is the first from Infineon’s new EconoDUAL 3 portfolio featuring TRENCHSTOP IGBT7. Further module types / current classes will follow in 2020. The lead type FF900R12ME7_B11 can be ordered now. The FF900R12ME7P_B11 with pre-applied TIM will be available by January 2020.