800 V and 900 V CoolMOS™ C3

800 V and 900 V CoolMOS™ C3 superjunction MOSFETs

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Overview

The CoolMOS™ C3 devices were among the first to bring the MOSFETs into super junction territory. This enabled a drastic reduction of the on-resistance by a factor of four compared to other high-voltage conventional MOSFETs. CoolMOS™ C3 offers low-conduction and switching losses. CoolMOS™ C3 is well-suited for legacy high-efficiency switch mode power supplies, industry, and renewables applications.

Key Features

  • Low gate charge for fast switching
  • Low conduction losses (RDS(on)*A)
  • 800 V and 900 V optimized range
  • Low Eoss @400V for fast switching

Products

About

One of the first MOSFETs based on the super junction principle, the C3 series brought about a large and sudden improvement in conduction losses. This was also coupled to improvement in switching speed and unparalleled at the time cost/performance ratio.

The on-resistance (RDS(on)) can be drastically reduced by a factor of four or more per package type, compared to other 900 V conventional MOSFETs. 900 V CoolMOS™ C3 also offers a very low figure-of-merit on-resistance times gate charge (RDS(on)*QG) of 34 W*nC, translating into low conduction, driving, and switching losses.

The energy stored in the output capacitance is reduced by a factor of two compared to conventional 900 V MOSFETs, which reduces power losses during hard-switched turn-on.

The 900 V CoolMOS™ C3 is well suited for high efficiency switch mode power supplies, industry and renewable energies applications. Change of design criteria is possible as designers can allow a higher DC-link or input voltage. High-power applications which use 3-phase PFC and PWM stages with DC-link voltages up to 750 V will benefit from 900 V CoolMOS™ C3 offering lowest on-resistance in TO-247 package.

The high blocking voltage in combination with low conduction losses and switching losses also open up for new design criteria in quasi-resonant flyback and single transistor forward topologies, used in LCD-TV and PC silverboxes for example. Higher efficiency, reduced system costs, and high power density are pointing the way towards future system development.

One of the first MOSFETs based on the super junction principle, the C3 series brought about a large and sudden improvement in conduction losses. This was also coupled to improvement in switching speed and unparalleled at the time cost/performance ratio.

The on-resistance (RDS(on)) can be drastically reduced by a factor of four or more per package type, compared to other 900 V conventional MOSFETs. 900 V CoolMOS™ C3 also offers a very low figure-of-merit on-resistance times gate charge (RDS(on)*QG) of 34 W*nC, translating into low conduction, driving, and switching losses.

The energy stored in the output capacitance is reduced by a factor of two compared to conventional 900 V MOSFETs, which reduces power losses during hard-switched turn-on.

The 900 V CoolMOS™ C3 is well suited for high efficiency switch mode power supplies, industry and renewable energies applications. Change of design criteria is possible as designers can allow a higher DC-link or input voltage. High-power applications which use 3-phase PFC and PWM stages with DC-link voltages up to 750 V will benefit from 900 V CoolMOS™ C3 offering lowest on-resistance in TO-247 package.

The high blocking voltage in combination with low conduction losses and switching losses also open up for new design criteria in quasi-resonant flyback and single transistor forward topologies, used in LCD-TV and PC silverboxes for example. Higher efficiency, reduced system costs, and high power density are pointing the way towards future system development.

Documents

Design resources

Developer community

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