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IR launches HVICs for industrial motor drive control

Posted: 11 Jun 2004 ?? ?Print Version ?Bookmark and Share

Keywords:international rectifier? ir? ir2214? ir22141? high voltage integrated circuit?

International Rectifier (IR) introduced its 1,200V-rated IR2214 and IR22141 high voltage integrated circuits (HVICs) for industrial motor drive control.

According to IR, the HVICs can be safely used as a single-part solution in high voltage industrial systems for protection circuits as well as high- and low-side switching. The company also said that competing devices rated at lower voltages typically use several components and bulky opto-couplers to accomplish the same switching and protection functions.

The new half-bridge gate driver ICs are designed specifically for 400Vac, three-phase AC induction motor drives using a 550V bus as well as brushless DC motors both from 10 horsepower to 20 horsepower. Both devices are the same, but the IR22141 includes a built-in active bias circuit that reduces external filtering. Output capability is 3A for high voltage, high current IGBTs, MOSFETs and integrated power modules.

Both devices include full soft-shutdown motor drive protection, detecting any de-saturation condition or under-voltage supply and sending fault feedback to the controller. Soft over-current shutdown avoids power node over- and under-shooting, protecting switching devices from damage.

Other features include a full range rail-to-rail output stage that allows up to 20V gate drive, dedicated pins to trim turn-on, turn-off and soft shutdown switching time and synchronization of the fault when used in three phase bridge circuits. In addition, the under voltage lockout with hysteresis minimizes the effects of power supply ripple and transients for safe gate drive and prevents IGBT overheating. Separate signal and output stage ground pins are included for emitter/source current sensing, while matched delay outputs enable accurate switching control and the 3.3V CMOS logic interfaces are compatible with most microcontrollers.

The IR2214SS and IR22141SS IGBT driver ICs are available immediately, with pricing beginning at $3.50 each in 10,000-unit quantities.

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