4707 Dey Road Liverpool, N.Y. 13088
(315) 701-6751
M.S.KENNEDY CORP.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
PIN-OUT INFORMATION
ISO 9001 CERTIFIED BY DSCC
MIL-PRF-38534 CERTIFIED
75 VOLT 5 AMP MOSFET
H-BRIDGE PWM MOTOR
DRIVER/AMPLIFIER
4200
The MSK 4200 is a complete H-Bridge hybrid to be used for DC brushed motor control or Class D switchmode
amplifier. All of the drive/control circuitry for the lowside and highside switches are internal to the hybrid. The PWM
circuitry is internal as well, leaving the user to only provide an analog signal for the motor speed/direction, or audio
signal for switchmode audio amplification. The MSK 4200 is packaged in a space efficient isolated 8 pin TO-3 that can
be directly connected to a heatsink.
5
6
7
8
RSENSE A
V
CC
GND
INPUT
1
2
3
4
RSENSE B
MOTOR B
V+
MOTOR A
FEATURES:
Low Cost Complete H-Bridge
28 Volt, 5 Amp Capability, 75 Volt Maximum Rating
Self-contained Smart Lowside/Highside Drive Circuitry
Internal PWM Generation, Shoot-through Protection
Isolated Case Allows Direct Heatsinking
Four Quadrant Operation, Torque Control Capability
Available Fully Screened To MIL-PRF-38534
Replaces SA-50
DESCRIPTION:
1
Rev. B 7/02
I
D
=5A
I
S
=5A
V+=70V
V+=70V
V+=70V
V
CC
=12V
V
CC
=12V
@ 50% Duty Cycle Output
OUTPUT CHARACTERISTICS
VDS(ON) Voltage (Each MOSFET)
Instantaneous Forward Voltage, Each MOSFET
(Intrinsic Diode)
Reverse Recovery Time (Intrinsic Diode)
Leakage Current, Each MOSFET
PWM Frequency
Vcc SUPPLY CHARACTERISTICS
Quiescent Bias Current
INPUT SIGNALS CHARACTERISTICS
Analog Input Voltage
Analog Input Voltage
Analog Input Voltage
SWITCHING CHARACTERISTICS
Rise-Time
Fall-Time
Dead-Time
75V
16V
5A
37A
GND-2V min. To V+ max.
2.3C/W
High Voltage Supply
Logic Supply
Continuous Output Current
Peak Output Current
Output Voltage Range
Thermal Resistance @ 125C
(Output Switches)
1
2
3
1
2
3
-
1
2
3
4
1
2
3
-
-
-
-
-
-
ABSOLUTE MAXIMUM RATINGS
V+
V
CC
I
OUT
I
PK
V
OUT
JC
-65C to +150C
300C
-40C to +85C
-55C to +125C
+175C
MSK 4200B/E
MSK 4200
Parameter
Test Conditions
ELECTRICAL SPECIFICATIONS
Units
Min.
-
-
-
-
-
-
-
-
-
-
40
-
-
-
-
-
-
-
-
-
Typ.
1.5
-
-
1.0
-
-
-
1.0
-
-
45
15
-
-
6
8
4
36
170
100
Max.
2.16
-
-
2.2
-
-
240
30
-
-
50
20
-
-
-
-
-
-
-
-
Min.
-
-
-
-
-
-
-
-
-
-
40
-
-
-
-
-
-
-
-
-
1
2
3
4
5
NOTES:
Max.
1.8
2.4
1.2
2.1
2.0
2.2
240
25
250
25
50
20
20
20
-
-
-
54
255
-
Typ.
1.5
2.2
1.1
1.0
0.9
1.1
-
1.0
2.0
0.5
45
15
15
15
6
8
4
36
170
100
30
30
30
30
30
V
V
V
V
V
V
nS
uA
uA
uA
KHz
mA
mA
mA
V
V
V
nS
nS
nS
Storage Temperature Range
Lead Temperature Range
(10 Seconds)
Case Operating Temperature
MSK4200
MSK4200B/E
Junction Temperature
T
ST
T
LD
T
C
T
J
1
1
Group A
Subgroup
5
3
2
Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.
Industrial grade and "E" suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified.
Military grade devices ("B" suffix) shall be 100% tested to subgroups 1,2,3 and 4.
Subgroups 5 and 6 testing available upon request.
Subgroup 1,4 T
A
=T
C
= +25C
2 T
A
=T
C
= +125C
3 T
A
=T
C
= -55C
All Ratings: Tc= +25C Unless Otherwise Specified
1
2
Rev. B 7/02
V
CC
=12V, Motor A,B=50% Duty Cycle
V
CC
=12V, Motor A=100% Duty Cycle High
V
CC
=12V, Motor B=100% Duty Cycle High
V+=28V, V
CC
=12V, I
C
=2A
APPLICATION NOTES
MSK 4200 PIN DESCRIPTION
IN
VCC - Is the low voltage supply for powering internal
logic and drivers for the lowside and highside MOSFETS.
The supplies for the highside drivers are derived from
this voltage.
MOTOR A - Is the output pin for one half of the bridge.
Increasing the input voltage causes increased duty cycles
at this output.
V+ - Is the higher voltage H-bridge supply. The MOSFETS
obtain the drive current from this supply pin. The voltage
on this pin is limited by the drive IC. The MOSFETS are
rated at 100 volts. Proper bypassing to GND with suffi-
cient capacitance to suppress any voltage transients, and
to ensure removing any drooping during switching, should
be done as close to the pins on the hybrid as possible.
MOTOR B - Is the output pin for the other half of the
bridge. Decreasing the input voltage causes increased
duty cycles at this output.
RSENSE A - This is the connection for the bottom of the A
half bridge. This can have a sense resistor connected to
the V+ return ground for current limit sensing, or can be
connected directly to ground. The maximum voltage on
this pin is 2 volts with respect to GND.
GND - Is the return connection for the input logic and
Vcc.
RSENSE B - This is the connection for the bottom of the B
half bridge. This can have a sense resistor connected to
the V+ return ground for current limit sensing, or can be
connected directly to ground. The maximum voltage on
this pin is 2 volts with respect to GND.
INPUT - Is an analog input for controlling the PWM pulse
width of the bridge. A voltage higher than Vcc/2 will
produce greater than 50% duty cycle pulses out of
MOTOR A. A voltage lower than Vcc/2 will produce
greater than 50% duty cycle pulses out of MOTOR B.
3
Rev. B 7/02
This is a diagram of a typical application of the MSK 4200. The design Vcc voltage is +12 volts and should have a good low
ESR bypass capacitor such as a tantalum electrolytic. The analog input can be an analog speed control voltage from a potentiometer,
other analog circuitry or by microprocessor and a D/A converter. This analog input gets pulled by the current control circuitry in the
proper direction to reduce the current flow in the bridge if it gets too high. The gain of the current control amplifier will have to be set
to obtain the proper amount of current limiting required by the system.
Current sensing is done in this case by a 0.1 ohm sense resistor to sense current from both legs of the bridge separately. It is
important to make the high current traces as big as possible to keep inductance down. The storage capacitor connected to the V+
and the hybrid should be large enough to provide the high energy pulse without the voltage sagging too far. A low ESR ceramic
capacitor or large polypropylene capacitor will be required. Mount capacitor as close to hybrid as possible. The connection between
GND and the V+ return should not be carrying any motor current. The sense resistor signal is common mode filtered as necessary
to feed the limiting circuitry for the microprocessor. This application will allow full four quadrant torque control for a closed loop
servo system.
A snubber network is usually required, due to the inductance in the power loop. It is important to design the snubber network
to suppress any positive spikes above 75V and negative spikes below -2V with respect to pin 5 (gnd).
TYPICAL SYSTEM OPERATION
4
Rev. B 7/02
MECHANICAL SPECIFICATIONS
The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make
changes to its products or specifications without notice, however, and assumes no liability for the use of its products.
Please visit our website for the most recent revision of this datasheet.
Rev. B 7/02
M.S. Kennedy Corp.
4707 Dey Road, Liverpool, New York 13088
Phone (315) 701-6751
FAX (315) 701-6752
www.mskennedy.com
Screening Level
Part
Number
MSK4200
MSK4200E
MSK4200B
Industrial
Extended Reliability
Mil-PRF-38534 Class H
ORDERING INFORMATION
ALL DIMENSIONS ARE 0.01 INCHES UNLESS OTHERWISE LABELED
5
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