July 2020 – Littelfuse’s High Power IGBTs

Littelfuse offers a wide range of highly reliable pressure contact IGBTs with voltage ratings from 1.7kV to 6.5kV and current ratings from 115A to 3kA.

Capsule Type High Power IGBTs

Littelfuse’s pioneering press-pack IGBT technology provides a range of class-leading devices with voltage ratings of 1.7kV (900V DC link), 2.5kV (1.25kV DC link), 3.3kV (1.8kV DC link), 4.5kV (2.8kV DC link) and 6.5kV (3.6kV DC link).

These devices are totally free from wire and solder bonds which all but eliminates the problems of mechanical fatigue associated with conventional modules. Internal stray inductance in both the gate connections and emitter connections is vastly reduced when compared to conventional modules leading to improved ruggedness and short circuit behaviour, which is further enhanced by direct cooling of the emitter side of the chip.

Gate Drive Units

Littelfuse’s C044BG400 IGBT gate driver is a low power consumption driver with on board VCE desaturation detection for high reliability application. The driver features a fiber-optic communication interface for drive, status and switching feedback signals. A fully supervised DC/DC converter with EMI filtering, low coupling capacitance and high partial discharge level is integrated into the board.

The high voltage collector sense and gate interface are implemented on a separate card to allow close coupling to the IGBT. A range of pre-configured boards is available to complement the Littelfuse range of press-pack IGBTs – other applications are available on request.

GD Rectifiers has access to Littelfuse’s wide range of circuit protection devices, for further information on the Littelfuse or IXYS product ranges please call our sales team on: 01444 243 452 or email: enquiries@gdrectifiers.co.uk.