STMicroelectronics (NYSE: STM), a global semiconductor leader serving customers across the spectrum of electronics applications, has added two miniature motor drivers to its range of SLLIMM(Small Low-Loss Intelligent Molded Modules), which will enable domestic appliances to offer better energy ratings.
Energy marking and labeling schemes, such as the ENERGY STAR mark andin-store energy rating labels, which are mandatory in many countries andcommunities worldwide, give consumers the skills and tools to identifyenergy efficient products in each price range. Intelligent motor controllersprovide the key to using less energy, while also enabling additionalbenefits such as new features and quieter operation in appliances such asdishwashers, refrigerators, air conditioners and fans.
ST's new SLLIMM nano family extends the portfolio of SLIMM intelligent powermodules for appliance motor drivers in a single module that connect directlybetween the central microcontroller and the motor. Compared to aconventional driver, which typically requires more than 30 individualcomponents, ST's modular solution reduces costs by simplifying design andsignificantly reducing component count while saving space, improvingreliability and lowering electromagnetic emissions (EMI). The modules arealso ideal for small built-in motor applications where assembly space is limited.
Two variants are available; the STGIPN3H60 and STGIPN3H60A. They are each housed in a 29.15 x 12.45mm package with 26 leads, making them ST?s smallest such devices to date. Inside each module is a complete three-phase half bridge including high-voltage gate drivers and IGBT power switches, plus freewheeling diodes and bootstrap diodes. The bootstrap diodes supplyhigh-voltage circuitry on the motor side as the driver module is startingup. Integrating it in the module delivers an additional saving in external components, and is achieved using a patented technique unique to ST.The STGIPN3H60A provides basic motor-drive capabilities for price-sensitive applications. Extra features in the STGIPN3H60 include an uncommitted op-amp, which engineers can use to feed back the sensed motor current to themicrocontroller in a closed-loop, Field-Oriented Control (FOC) system. Thereis also a comparator for use in over-temperature or over-current shutdown.The STGIPN3H60 also has a smart shutdown function capable of generating asimple fault indication or shutting the driver down safely within 200ns inan emergency.
Major features of STGIPN3H60/A:
600V/3A IGBT rating
Optimized for low electromagnetic interference
Fixed, dead-time and interlocking function
Under-voltage lockout
Shutdown function
Pin-out optimized to simplify board layout
1.57mm creepage distance between high and low voltage pins, meeting international safety standards for high-voltage devicesThe STGIPN3H60A and STGIPN3H60 are available now in full production in the26-pin NDIP leaded package, priced at $5.8 for the STGIPN3H60A and $6.0 forthe STGIPN3H60, for orders of 1000pieces.