ROHM has developed new 1200 V, full-SiC power modules rated at 400 A and 600 A, “the BSM400D12P3G002” and “the BSM600D12P3G001”, for use in inverters and converters in power supplies for industrial equipment, power conditioners for solar power generation, and UPS products.
In March 2012, ROHM began mass production of the world's first full-SiC power module, with SiC used for all internal power semiconductor devices. Thereafter, the product lineup was extended to 1200 V, 300 A products, and the SiC power modules are being used in a wide range of fields. Through the development of a new package, the lineup of full-SiC power modules is extended to cover current ratings from 100 A to 600 A, which are the principal specifications of products in the IGBT module market. These power modules make possible dramatic increases in efficiency and reductions in size compared with general IGBT module applications with equivalent current ratings.
Through development of a new package incorporating an unique internal structure and optimizing the heat dissipation design, full-SiC power modules rated at 600 A were commercialized. As a result, it became possible to study to use full-SiC power modules in higher power applications such as large-capacity power supplies for industrial equipment. Compared with general IGBT modules with equivalent current ratings, the switching losses at Tj=150°C were reduced by 64%. (based on comparison of product data sheets of IGBT modules available on the market)
Peripheral Components Miniaturized through High-Frequency Operation
Loss simulations during PWM inverter drive indicated significant reductions in total losses over equivalent current-rated IGBT modules at the same switching frequency, reaching 30% at 5 kHz and 55% at 20 kHz. At 20 kHz, the size of the heat sink expected to be necessary can be reduced by some 88%. Moreover, higher frequency operation enables the use of smaller peripheral passive components, so that equipment can be made even more compact.
Full-SiC Power Module Lineup
| Part No. | Absolute Maximum Ratings | Inductance (nH) |
Package | Thermistor | Internal Circuit Diagram* |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| VDSS (V) |
VGS (V) |
ID(V) [Tc=60°C] |
Tj max (°C) |
Tstg (°C) |
Visol(V) [AC 1min.] |
|||||
| BSM080D12P2C008 | 1200 | -6 ~22 |
80 | 175 | -40 ~125 |
2500 | 25 | C type 45.6 × 122 × 17mm |
- |  |
| BSM120D12P2C005 | 120 | |||||||||
| BSM180D12P3C007 | -4 ~22 |
180 | ||||||||
| BSM180D12P2E002 | -6 ~22 |
180 | 13 | E Type 62 × 152 × 17mm |
○ |  |
||||
| BSM300D12P2E001 | 300 | |||||||||
| BSM400D12P3G002 | -4 ~22 |
400 | 10 | G Type 62 × 152 × 17mm |
||||||
| BSM600D12P3G001 | 600 | |||||||||
* Chopper types are also offered.
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