Modules Ease Design of Variable-Speed Motor Drives

March 30, 2005
International Rectifier (IR) has introduced a set of 600-V, 16-A and 20-A integrated power modules (IPMs), expanding the analog power stage solutions offered as part of IR’s iMOTION integrated design platform. The new IPMs simplify the design of ...

International Rectifier (IR) has introduced a set of 600-V, 16-A and 20-A integrated power modules (IPMs), expanding the analog power stage solutions offered as part of IR’s iMOTION integrated design platform. The new IPMs simplify the design of compact, high-performance variable-speed motion control power stages for air conditioners and commercial freezers, for example.

Designed specifically for 85-Vac to 253-Vac variable speed motor drives for energy efficient appliances, these IPMs integrate IR’s proprietary high-voltage integrated circuit (HVIC) with a 3-phase inverter power stage. The 16-A device addresses the 750-W to 1.2-kW power range while the 20-A devices can accommodate 750-W to 2.2-kW. All new IPMs are packaged in efficient, single in-line packages (SIPs) with improved thermal characteristics.

The IRAMY20UP60B is a 20-A, 600-V IPM with internal shunt resistor that combines IR’s low VCE(on) non-punch-through and short-circuit rated IGBT technology with IR’s 3-phase HVIC gate driver. The IPM has a built-in temperature monitor. The integrated HVIC enables overcurrent and overtemperature protection, as well as undervoltage lockout, delivering high levels of protection for fail-safe operation. The SIP3 package includes internal heat spreaders for the power die. Its single in line full-transfer mold structure minimizes PCB space and simplifies heatsink isolation and mounting. The new IRAMY20UP60B in SIP3 is an advanced solution available on the market for a fully integrated inverter driver application up to 20 A.

The IRAMX20UP60A is a 20-A, 600-V IPM that does not include a shunt resistor but is packaged in a more compact SIP2 outline. An open emitter configuration of the low-side IGBT switches offer easy current feedback and overcurrent monitoring for high precision and reliable control. The IRAMX20UP60A also is a full-transfer mold structure and has internal heat spreaders for the power die for maximum thermal efficiency.

The IRAMX16UP60B, offering similar functions and features to its 20-A counterparts, is rated at 16-A and is for motors in the 750-W to 1.2-kW power range. The IRAMX16UP60B also comes in the SIP2 package, includes internal shunt resistor, temperature monitor and all the safe-fail features of the IRAM product family.

The new IRAMX16UP60B is pin-to-pin compatible with the existing IRAMS10UP60B while the new IRAMX20UP60A is pin-to-pin compatible with the already available IRAMS10UP60A and IRAMX16UP60A, delivering a simple path to upgrade or expand power level in existing designs.

Samples of IRAMX16UP60B, IRAMX20UP60A and IRAMY20UP60B are available immediately. Pricing starts from $10.95 each in 10,000-unit quantities.

For more information, visit www.irf.com/product-info/imotion.

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