STMicroelectronics SLLIMM-nano series surface-mount intelligent power modules (IPMs)

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STMicroelectronics has added five space-saving surface-mount intelligent power modules (IPMs) to its SLLIMM-nano family, giving the choice of IGBT or MOSFET outputs for in-motor or other space-constrained drives all the way from low power ratings up to 100 W.

The modules deliver high conduction and switching efficiency, especially in hard-switching circuits at frequencies up to 20 kHz. The integrated gate-driver circuitry is engineered to minimise electromagnetic emissions (EMI) by managing switching voltage and current slopes (dV/dt, di/dt). The thermally efficient package enhances reliability and allows heatsink-free design, while 2.7 mm creepage and 2 mm clearance ensure safety isolation within the compact dual-inline SMD footprint. The module pin configuration is optimised to simplify circuit-board layout.

A wide range of domestic and industrial appliances, such as small fans, roller shutters, refrigerator compressors, dishwashers, draining and recirculation pumps, and general low-power motor drives, can benefit from the small size, high energy efficiency and safe, low-noise performance of the IPMs.

Extra features integrated alongside the gate driver and 500 V MOSFET or 600 V IGBT/freewheel-diode array include an uncommitted operational amplifier and a comparator that let designers implement current sensing and overcurrent protection with minimal external components. Smart shutdown with high-speed fault detection, interlocking and undervoltage lockout are all built in, and integrated bootstrap diodes simplify powering the module’s gate-control circuitry.

The power modules provide a choice of 1, 2 or 3 A current rating (at 25°C). All are packaged as fully moulded, dual-inline surface-mount devices.

For more information: www.st.com/ipm.