MSK4322

MIL-PRF-38534 AND 38535 CERTIFIED FACILITY 20 AMP, 200 VOLT MOSFET SMART POWER 3-PHASE M.S. KENNEDY CORP. MOTOR DRIVE HYBRID 4322 FEATURES: 200V, 20 Amp Capability Ultra Low Thermal Resistance - Junction to Case - 0.6°C/W (Each MOSFET) Self-Contained, Smart Lowside/Highside Drive Circuitry Under-Voltage Lockout, Internal 2μS Deadtime Capable of Switching Frequencies to 25KHz Isolated Case Allows Direct Heat Sinking Case Bolt-down Design Allows Superior Heat Dissipation Contact MSK for MIL-PRF-38534 Qualification Status DESCRIPTION: The MSK4322 is a 20 Amp, 3 Phase Bridge Smart Power Motor Drive Hybrid with a 200 volt rating on the output switches. The output switches are power MOSFETs with intrinsic fast-recovery diodes for the free-wheeling currents of motor drives. This new smart power motor drive hybrid is compatible with 5V CMOS or TTL logic levels. The internal circuitry prevents simultaneous turn-on of the in-line half bridge transistors with a built-in 2μS deadtime to prevent shoot-through. Undervoltage lockout shuts down the bridge when the supply voltage gets to a point of incomplete turn-on of the output switches. The internal high-side boot strap power supply derived from the +15 volt supply completely eliminates the need for 3 floating independent power supplies for the high-side drive. Current sense circuitry is provided to sense current from an external resistor to shut down the bridge for overcurrent. EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS TYPICAL A...