International Rectifier Corp. (IR, El Segundo, CA) launched the first iNTERO® programmable, isolated-intelligent, power module (PI-IPM), the PIIPM50P12B004, which integrates the power stage with the embedded driver board containing a programmable DSP on-board in a single housing. The PI-IPM provides a fully integrated, flexible, high-performance solution for three-phase, ac-induction, and brushless dc industrial and servo motors up to 15kW.
The PIIPM50P12B004 is rated at 1,200V and 50A and includes all power semiconductors for a three-phase inverter power stage as well as a programmable 40 Mips DSP, current sensing, isolation, gate driver and power stage protection for direct interface with the motor drive host and the input stage. The PI-IPM provides an accurate current-feedback loop in a rugged design with low noise in a package that is up to 50 percent smaller than traditional designs. The current feedback loop has a bandwidth of 5kHz and provides low torque at low speed without unwanted shaft trembling or noise.
The new module includes leading non-punch-through IGBT and advanced diode technology for reduced current-tail effects, ultra-low power losses up to 20kHz, a square safe operating area, 10 microsecond short-circuit capability and low conductive noise. Switching frequencies up to 20kHz can be implemented by combining the reduced current-tail effects from the IGBT with a gate driver IC that allows deadtime as low as 500ns.
The device is housed in the EMP® package that has the mechanical outline of the industry-standard, EconoPack 2 package. Pricing for the PIIPM50P12B004 is $500 each in 500-unit quantities.
