ISO-9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
FEATURES:
28 AMP, 500 VOLT IGBT PLUS DIODE
SMART POWER 3-PHASE
MOTOR DRIVE HYBRID
4357
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
MIL-PRF-38534 CERTIFIED
500V, 28 Amp Capability
Ultra Low Thermal Resistance
Integral Free Wheeling Fast Recovery Epitaxial Diode (FRED)
Self-Contained, Smart Lowside/Highside Drive Circuitry
Under-Voltage Lockout, Internal 2uS Deadtime
Capable of Switching Frequencies to 25KHz
Isolated Case Allows Direct Heat Sinking
Case Bolt-down Design Allows Superior Heat Dissipation
DESCRIPTION:
The MSK 4357 is a 28 Amp, 3 Phase Bridge Smart Power Motor Drive Hybrid with a 500 volt rating. The output
switches are Insulated Gate Bipolar Transistors (IGBT's) tailored for high switching speeds. The free-wheeling diodes
are the new Fast Recovery Epitaxial Diodes (FRED's) to provide matched current capabilities with the IGBT's and are
specified with excellent reverse recovery times at high current ratings. 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 2uS 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 power
supply derived from the +15 volt supply completely eliminates the need for 3 floating independent power supplies for
the high-side drive.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
PIN-OUT INFORMATION
1
2
3
4
5
6
7
8
9
1
3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE
OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE
VCC
AØHIN
AØLIN
BØHIN
BØLIN
CØHIN
CØLIN
ITRIP
VSS
18
17
16
15
14
13
12
11
10
AV+
AØ
AV-
BV+
BØ
BV-
CV+
CØ
CV-/ISENSE
Rev. I 6/04
MSK [ M.S. KENNEDY CORPORATION ]
