STM – 650V IH series IGBTs – The best choice for induction
Maximize efficiency in induction heating systems as well as resonant and soft switching applications
Specifically designed for induction heating applications, ST’s 650V IH series in trench-gate field-stop (TFS) IGBT technology offers very low VCE(sat), thermal resistance and switching losses. Thanks to the fast and soft recovery freewheeling co-packed diode, the 650V IH series ensures superior performance and high efficiency in induction heating applications (half-bridge topology) and in resonant and soft switching circuitries in a wide switching frequency range from 16 to 60 kHz. Available in current capability of 40 A and 50 A in TO-247 long-lead package, this series will be enlarged with 20A and 30A devices in TO-247 long-lead and in TO-220 package.
KEY FEATURES
• Wide frequency range from 16 to 60 kHz
• Very low VCE(sat) (1.5 V typ.)
• Low thermal resistance
• Maximum operating TJ of 175 °C
• 650 V very fast and soft recovery freewheeling co-packed diode
TARGET APPLICATIONS
• Half-bridge induction heating
• Microwave ovens
• Resonant converters
The technology improvements implemented on the dedicated IH IGBT series allow to reach lower VCE(sat) and EOFF values than the previous HB IGBT series used for induction heating applications.
The figure 1 shows the different performances between the two products belonging to the two technologies (IH and HB):
BENCHMARK RESULTS CONFIRM PERFORMANCES ALIGNED TO MAJOR COMPETITORS
In a 2.5kW half bridge resonant converter topology the power losses and the case temperature have been evaluated. The results on STGWA40IH65DF product versus the main competitors’ devices are showed in the below figure:
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