Power Integrations BridgeSwitch Family devices are high-voltage, self-powered, and Integrated Half-Bridge (IHB) motor drivers. The BridgeSwitch family from Power Integrations dramatically simplifies the development and production of high-voltage inverter-driven 1- or 3-phase PM or BLDC motor drives. These motor drives incorporate two high-voltage N-channel power FREDFETs with low and high-side drivers in a single small-outline package. The internal power FREDFETs offer ultra-soft and ultra-fast diodes ideally suited for hard-switched inverter drives. Both drivers are self-supplied, eliminating the need for an external auxiliary power supply. BridgeSwitch provides a unique instantaneous phase current output signal, simplifying the implementation of sensor-less control schemes. The low-profile, compact footprint surface mount package offers extended creepage distances and allows heat sinking of both power FREDFETs through the printed circuit board.
