MSK4322_15 Datasheet, PDF (1/7 Pages) M.S. Kennedy Corporation – Self-Contained, Smart Lowside/Highside Drive Circuitry

MIL-PRF-38534 AND 38535 CERTIFIED FACILITY
20 AMP, 200 VOLT MOSFET
SMART POWER 3-PHASE
M.S. KENNEDY CORP.
MOTOR DRIVE HYBRID
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
4322
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 APPLICATIONSPIN-OUT INFORMATION
3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE
OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE
1
PIN-OUT INFORMATION
1 VCC
2 AØHIN
3 BØHIN
4 CØHIN
5 AØLIN
6 FAULT
7 CØLIN
8 BØLIN
9 VSS
10 ITRIP
20 N/C
19 AØ
18 V+
17 N/C
16 N/C
15 BØ
14 N/C
13 N/C
12 CØ
11 COM
8548-67 Rev. J 12/14