ISO-9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
FEATURES:
50 AMP, 500 VOLT IGBT PLUS DIODE
FULLY ISOLATED
SMART POWER 3-PHASE MOTOR
DRIVE POWER HYBRID
4351
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
500V, 50 Amp Capability at 110擄C
Fully Isolated Bridge
Ultra Low Thermal Resistance
Integral Free Wheeling Fast Recovery Epitaxial Diode (FRED)
Self-Contained, Smart Lowside/Highside Drive Circuitry and Isolated Supply
Adjustable Deadtime
Capable of Switching Frequencies to 20KHz
Isolated Case Allows Direct Heat Sinking; On Board Temp Sensor
Case Bolt-down Design Allows Superior Heat Dissipation
MIL-PRF-38534 CERTIFIED
DESCRIPTION:
The MSK 4351 is a 50 Amp, 3 Phase Isolated 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 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. The bridge is optically isolated from the control circuitry. 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 adjustable 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 isolated 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
1
2
3
4
5
6
7
8
9
10
11
12
1
PIN-OUT INFORMATION
+15V
GND
AHI
ALO
BHI
BLO
+15V
GND
CHI
CLO
+15V
GND
13
14
15
16
17
18
19
20
21
22
23
24
RESET
R/C
+15V
N/C
OSCOUT
GND
N/C
N/C
N/C
N/C
N/C
TEMP SENSE
25
26
27
28
29
30
31
32
33
34
35
36
RKELVIN+
RKELVIN-
RSENSE-
RSENSE-
RSENSE+
RSENSE+
CV-
CV-
C脴
C脴
CV+
CV+
37
38
39
40
41
42
43
44
45
46
47
48
BV-
BV-
B脴
B脴
BV+
BV+
AV-
AV-
A脴
A脴
AV+
AV+
3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE
OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE
PRELIMINARY Rev. A 11/01
1
2
3
4
5
6
