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Diodes MOSFETS designed for high ambient temperatures

Posted: 24 Mar 2016 ?? ?Print Version ?Bookmark and Share

Keywords:MOSFETS? motor control? BLDC applications? brushless DC motors?

Diodes Incorporated's automotive-compliant 40V MOSFETS can operate in high ambient temperature environments of up to +175C. The DMTH4004SPSQ has been designed to meet the requirements of high-power (>750W) brushless DC motor (BLDC) applications, such as water and fuel pumps, while the DMTH4005SPSQ is suited to lower power BLDC applications, such as auxiliary pumps and heating, ventilation and air-conditioning (HVAC) systems.

Developed to meet the rigorous demands of three phase BLDC motor control applications, the DMTH4004SPSQ and DMTH4005SPSQ are 100% avalanche tested, and are able to withstand the high pulses of reverse avalanche energy that can occur with inductive loads. Furthermore, at a gate-source voltage of 10V, the DMTH4004SPSQ and DMTH4005SPSQ feature maximum on state resistances of 2.7m and 4m respectively, which together with their low gate charge ensure that power losses are kept to a minimum.

The efficiency of these MOSFETs is further enhanced by the low thermal resistance of the POWERDI 5060-8 package. This allows for a maximum junction temperature of 175C, which allows the MOSFETs to operate in high ambient temperature environments.

The DMTH4004SPSQ and DMTH4005SPSQ are available in quantities of 3k units. Further information is available from

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