First Optimised Power Modules for Switched-Reluctance Motors Deliver 40% Footprint Saving

The industry’s first power modules optimised for two-phase Switched-Reluctance Motors (SRM) allow 40% smallermotor drives for use in industrial automation and small vehicles.

The Fairchild Semiconductor FCAS20DN60BB and FCAS30DN60BB are 20A and 30Amodules integrating all necessary power components in a 45mmx 28mmSIP package. This allows the motor drive to be incorporated within the SRM assembly for improved design productivity and ease of manufacturing, as well as smaller size.

Both modules contain four IGBTs and their drivers, four fast-recovery diodes, two bootstrap diodes and a thermistor. There is also a high-speed built-in High-Voltage IC (HVIC), which contributes to size savings by providing an optocoupler-less IGBT gate driving capability. The integrated HVIC further simplifies motor-drive design by allowing a single-grounded power supply to be used.

With low-loss IGBTs matched to optimised protection and drive circuitry, on-chip system-control functions, and all components fully tested, high reliability is assured. Under-Voltage Lock-out (UVLO) and short-circuit protection are also provided. The low thermal resistance and integrated heat spreader of the thermally-enhanced package also help to boost the reliability of these modules.

 

FEATURES Logic-compatible input interface 600V voltage rating 1500V package-isolation voltage Fault pin for low-side supply

APPLICATIONS Industrial automation (e.g. weaving machines) Electric and industrial vehicles Household and industrial vacuum cleaners Food processors

 

 

Fairchild Semiconductor / FCASx0DN60BB