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Technology Stocks : Wolf speed
WOLF 26.32+0.6%Oct 31 9:30 AM EST
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To: EvanG who wrote (10545)8/31/2022 7:26:13 PM
From: EvanG1 Recommendation

Recommended By
Lou Weed

   of 10712
 
Onsemi has compared their N-channel mosfets which can be used for on board chargers to their competitors. The onsemi has a 29% lower specific resistance than Wolfspeed. The devices mentioned are:
  • Onsemi: NVH4L022N120M3S
  • Infineon: IMZ120R030M1H
  • ROHM: SCT3022KL
  • STMicro: SCTW70N120G2V
  • Wolfspeed: C3M0021120K
mouser.com

The figures of merit represent the suitability of a given part to the application. As defined here, parts with low figures of merit represent a better fit for the application.
  • The specific resistance, RSP, provides an indication of cost, which is important for all applications.
  • Parts with low RDS(on) * QOSS facilitate short dead times and affects the resonant current settings, and enables higher frequency operation, leading to higher efficiency.
  • The RDS(on) * QRR FOM indicates suitability for repetitive hard commutation.
  • RDS(on) * EOSS gives an indication of parts that will minimize switching losses in hard-switched applications.
  • RDS(on) * QG provides an indication of the relative gate driving losses encountered in the converter and becomes especially important for MHz level switching frequencies.
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