ISO-9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
M.S. KENNEDY CORP.
FEATURES:
10 AMP, 600 VOLT IGBT
SMART POWER 3-PHASE
MOTOR DRIVE HYBRID
4454
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
600V,10 Amp Capability
Ultra Low Thermal Resistance - Junction to Case - 2.2°C/W (Each IGBT)
Self-Contained, Smart Lowside/Highside Drive Circuitry
Bootstrap High-Side Supplies
Under-Voltage Lockout
Capable of Switching Frequencies to 25KHz
Isolated Case Allows Direct Heat Sinking
Bolt-down Design Allows Superior Heat Dissipation
DESCRIPTION:
The MSK 4454 is a 10 Amp, 3 Phase Bridge Smart Power Motor Drive Hybrid with a 600 volt rating on the
output switches. The output switches are Insulated Gate Bipolar Transistors (IGBT's). The free-wheeling diodes
are Fast Recovery Epitaxial Diodes (FRED's) to provide matched current capabilities with the IGBT's and are speci-
fied with excellent reverse recovery times. This new smart power motor drive hybrid is 5.0 volt input logic
compatible. Under-voltage 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 bootstrap power supply derived from the +VB supply
completely eliminates the need for 3 floating independent power supplies.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
TYPICAL APPLICATIONSPIN-OUT INFORMATION
PIN-OUT INFORMATION
1
2
3
4
5
6
7
8
9
10
H INA
L INA
+VCC
H INB
L INB
COM
COM
+VB
H INC
L INC
20
19
18
17
16
15
14
13
12
11
V+
N/C
AV-
AØ
N/C
BV-
BØ
N/C
CV-
CØ
Rev. B
11/04
3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE
OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE
1
2.7°C/W
ELECTRICAL SPECIFICATIONS
MSK 4454
Typ.
Max.
Parameters
Test Conditions 2
Min.
UNITS
OUTPUT CHARACTERISTICS
Ic=10A
VC-E (On) Voltage (Each IGBT)
3
V+ = 600V
Leakage Current (Each IGBT)
I
D
=10A
Instantaneous Forward Voltage (FRED Flyback Diode)
3
I
D
=10A, di/dt=100A/µS, Vr=350V
Reverse Recovery Time
BIAS SUPPLY CHARACTERISTICS
+Vcc=15V
+Vcc Bias Current
+V
B
=15V
+VB Bias Current
INPUT SIGNAL CHARACTERISTICS
1
+Vcc=15V
Positive Trigger Threshold Voltage
+Vcc=15V
Negative Trigger Threshold Voltage
+Vcc Positive Going Threshold
Under-voltage Lockout
+Vcc Negative Going Threshold
Low Side Turn-off to High Side Turn-On
Dead Time
High Side Turn-off to Low Side Turn-On
-
-
-
-
-
-
2.7
-
7.2
6.7
280
4
3.1
250
1.75
-
-
-
-
-
8.9
8.2
400
5
3.8
500
2.5
180
6
1
-
0.8
10.8
9.9
520
6
NOTES:
1 Guaranteed by design but not tested. Typical parameters are representative of actual device performance but
are for reference only.
2 Vcc=+15V, VB=+15V, V+=270V and TCASE=25°C unless otherwise specified.
3 Measured using a 300µS pulse with a 2% duty cycle.
2
Rev. B
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2.2°C/W
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-40°C to +85°C
+150°C
volts
µA
volts
nS
mA
mA
volts
volts
volts
volts
nSEC
µSEC
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ABSOLUTE MAXIMUM RAT-
INGS
V+ High Voltage Supply
V
CC
Logic Supply
I
OUT
Continuous Output Current
I
PK
Peak Output Current
θ
JC
Thermal Resistance @ 125°C
(Output Switches)(Junction to Case)
θ
JC
Thermal Resistance @ 125°C
(Diodes)
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600V
18V
10A
30A
TsT Storage Temperature Range
TLD Lead Temperature Range
TC (10 Seconds)
Case Operating Temperature
MSK 4454
TJ Junction Temperature
-55° to +125°C
300°C
11/04
TYPICAL PERFORMANCE CURVES
3
Rev. B
11/04
APPLICATION NOTES
MSK 4454 PIN DESCRIPTIONS
+VCC
- Is the low voltage supply for all the internal
logic and drivers. A 0.1 µF ceramic capacitor in paral-
lel with a 10µF tantalum capacitor is the recommended
bypassing from the +VCC pin to the COM pin.
H INA, H INB, H INC
- Are high active logic inputs for
signalling the corresponding phase high-side switch to
turn on. The logic inputs are compatible with standard
CMOS or LSTTL outputs. These logic inputs are inter-
nally zener clamped at 5.2 volts.
L INA, L INB, L INC
- Are low active logic inputs for
signalling the corresponding phase low-side switch to
turn on. The logic inputs are compatible with standard
CMOS or LSTTL outputs. These logic numbers are
internally zener clamped at 5.2 volts.
AØ, BØ, CØ
- Are the pins connecting the 3 phase
bridge switch options.
AV-, BV-, CV-
- Are the connections from the bottoms
of the three half bridges. These pins get connected to
the COM pin. If current sensing is desired they may be
connected to the COM pin through a low value sense
resistor.
+VB
- Is the connection used to provide power to the
floating high-side bootstrap supplies in the gate drive
circuitry.
V+
- Is the high voltage positive rail connection to the
tops of the three half bridges. Proper power supply
bypassing must be connected from this pin to the COM
pin for good filtering. This bypassing must be done as
close to the hybrid as possible.
COM
- Is the connection that all hybrid power supply
connections are returned to and bypassed to.
4
Rev. B
11/04
TYPICAL SYSTEM OPERATION
The MSK 4454 is designed to be used with a +270 volt high voltage bus, +15 volt low power bus and +5 volt
logic signals. Proper derating should be applied when designing the MSK 4454 into a system. High frequency layout
techniques with ground planes on a printed circuit board is the only method that should be used for circuit construc-
tion. This will prevent pulse jitter caused by excessive noise pickup on the current sense signal or the error amp
signal.
Ground planes for the lower power circuitry and the high power circuitry should be kept separate. The connection
between the bottom of the current sense resistor, COM pin and the high power ground, AV-, BV- and CV- pins are
connected at this point. This is a critical path and high currents should not be flowing between the current sense and
COM. Inductance in this path should be kept to a minimum. An RC filter (shown in 2 places) will filter out the current
spikes and keep the detected noise for those circuits down to a minimum.
In the system shown a PWM pulse by pulse current limit scheme controlled by the motor controller is implemented.
When controlling the motor speed by the PWM method, it is required that the low side switches be PWM pulsed due
to the bootstrap supplies used to power the high side switch drives. The higher the PWM speed the higher the current
load on the drive supply. PWM of the low side will prevent sagging of the high side supplies. A separate pin (+VB)
is provided for connecting an external floating power supply to power the bootstrap supplies.
5
Rev. B 11/04
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