The new 600V CoolMOS™ C7 series from Infineon offers approximately 50% reduction in turn-off losses (E oss) compared to the CoolMOS™ CP. It offers an outstanding level of performance in PFC, TTF and other hard-switching topologies and extends the use of silicon MOSFETs to the next generation of highest efficiency power designs.
CoolMOS™ C7 offers best-in-class performance in PFC and LLC topologies
CoolMOS™ C7 offers gains of 0.3% to 0.7% in PFC stages versus its predecessor CoolMOS™ CP. Further efficiency gains can be realized in highest power designs with the TO-247 4pin package. On average, CoolMOS™ C7 with TO-247 4pin package boosts efficiency by 0.4%.
Customer benefits –higher efficiency or BOM cost reduction
- In efficiency driven applications the reduced switching losses boost efficiency and translate into lower thermal losses and lower power consumption. Ideally, the CoolMOS™ C7 efficiency is further boosted by using a package with a Kelvin source (TO-247 4pin or ThinPAK 8x8).
- BOM cost driven applications can use the efficiency gains for increasing the switching frequency, which allows to reduce the cost of the magnetic components by up to 35%
|Key features||Key benefits|
New best-in-class package options
The 600V CoolMOS™ C7 offers new best-in-class R DS(on) values in TO-220/TO-262/TO-263 packages – a 36% lower on-state resistance versus to the nearest competitor is realized. The smaller package offers a 50% cross section reduction compared to TO-247, opening ways toward higher power density. Also in TO-247 package, a new record in form of a 17mΩ die is achieved.
|600V CoolMOS™ C7 comes with the lowest R DS(on) in TO-220/TO-262/TO-263||Customer benefit – space savings|
Increasing switching frequencies without penalty
In designs based on 600V CoolMOS™ C7 switching frequencies can be increased by up to two times with very limited penalty. This is possible due to the 50% reduction of turn-off losses in CoolMOS™ C7. Switching losses in a 600V CoolMOS™ C7 based design at 130kHz are lower than in a CoolMOS™ CP based design at 65kHz (see figure below). A further loss reduction is achieved when the CoolMOS™ C7 is used in a package with Kelvin source (e.g. TO-247 4pin or ThinPAK 8x8): the higher full load efficiency provided by the 4pin package can be used to increase R DS(on) by on step (e.g. from 40 to 70mOhm). As a result, light load switching losses decrease even further.