MSK4322

ISO-9001 CERTIFIED BY DSCC 20 AMP, 200 VOLT MOSFET SMART POWER 3-PHASE MOTOR DRIVE POWER HYBRID M.S.KENNEDY CORP. M.S. KENNEDY CORP. 4707 Dey Road Liverpool, N.Y. 13088 4322 (315) 701-6751 FEATURES: MIL-PRF-38534 QUALIFIED 200V, 20 Amp Capability Ultra Low Thermal Resistance - Junction to Case - 1.0°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 DESCRIPTION: The MSK 4322 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 freewheeling 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...