MSK MSK4221 Datasheet
ISO 9001 CERTIFIED BY DSCC
75 VOLT 8 AMP MOSFET
H-BRIDGE PWM MOTOR
4221
M.S.KENNEDY CORP.
4707 Dey Road Liverpool, N.Y. 13088 (315) 701-6751
FEATURES:
Low Cost Complete H-Bridge
8 Amp Capability, 75 Volt Maximum Rating
Self-contained Smart Lowside/Highside Drive Circuitry
Shoot-through Protection
Isolated Case Allows Direct Heatsinking
Four Quadrant Operation, Torque Control Capability
Logic Level Disable Input
Logic Level High Side Enable Input for Special Modulation or Function
Internal Divider Reference for Threshold Voltage
DESCRIPTION:
The MSK 4221 is a complete H-Bridge circuit to be used for DC brushed motor control or Class D switchmode
amplifiers. All of the drive/control circuitry for the lowside and highside switches are included internally. The user
provides a digitally compatible PWM signal (a reference divider is provided for TTL compatability or the user provides
their own to the VREF IN) for simultaneous amplitude and direction control in four quadrant mode. The internal drive
circuitry will provide proper deadtime/shoot-through protection for each half-bridge. All N-channel FETs mean the
best efficiency for the size, both in terms of on-resistance and switching capability. For an idle/sleep mode or for fault
protection, a TTL compatible disable pin is provided so as to shut down all four transistors. The MSK4221 is
constructed on a space efficient ceramic coated insulated metal substrate that can be directly connected to a heat
sink.
EQUIVALENT SCHEMATIC
DRIVER/AMPLIFIER
TYPICAL APPLICATIONS
PIN-OUT INFORMATION
18
17
16
15
14
13
12
11
10
Output B
Output B
Rsense B
Rsense B
V+
V+
Rsense A
Rsense A
Output A
Rev. C 6/00
HEN
1
Disable
2
Input
3
Vref in
4
Ground
5
Ground
6
Vref out
7
Vcc
8
Output A
9
1
ABSOLUTE MAXIMUM RATINGS
High Voltage Supply
V+
Logic Supply
VCC
Continuous Output Current
IOUT
Peak Output Current
IPK
Output Voltage Range
VOUT
Thermal Resistance
θJC
○○○○○○○○○○○○○○○○○○○○○
○○○○○○○○○○○○○○○○○
○○○○○○○○○○○○○○○○
○○
○○○○○○○○○○○○○○
(Output Switches)
ELECTRICAL SPECIFICATIONS
Parameter
OUTPUT CHARACTERISTICS
VDS(ON) Voltage
Instantaneous Forward Voltage
Reverse Recovery Time
Leakage Current
Vref Output
Vcc SUPPLY CHARACTERISTICS
Quiescent Bias Current
Vcc Voltage Range
INPUT SIGNAL CHARACTERISTICS
VREF Input Current - Low
VREF Input Current - High
Input Current - Low
Input Current - High
PWM Pulse Low Voltage
PWM Pulse High Voltage
PWM Frequency
LOGIC CONTROL INPUTS
Disable Input
HEN Input
SWITCHING CHARACTERISTICS
Rise-Time
Fall-Time
Dead-Time
1
1
1
1
1
1
1
75V
16V
○○○○○○○○○○○○○
8A
14A
GND-2V min. To V+ max.
5.3°C/W
Test Conditions
Each MOSFET ID=10A
Each MOSFET IS=10A Intrinsic Diode
Intrinsic Diode
Each MOSFET V+=70V
IVREF=0mA
Input=0VDC
1
Vref Out Connected to Vref In
Vref Out Connected to Vref In
Input Voltage LO
Input Voltage HI
Input Current (DISABLE=0V)
Input Voltage LO
Input Voltage HI
Input Current (HEN=0V)
Storage Temperature Range
TST
Lead Temperature Range
TLD
○○
-65°C to +150°C
○○○○○○○○○○○
300°C
(10 Seconds)
Case Operating Temperature
TC
MSK4221
Junction Temperature
TJ
○○○○○○○○○○○○
○○○○○○○○○○○
-25°C to +125°C
+150°C
All Ratings: Tc= +25°C Unless Otherwise Specified
-
-
-
-
-
9
-2
-
-2
-
0
-
-
-
-
-
-
-
-
MSK 4221
Typ.
1.7
2.0
-
1.0
1.2
20
12
-
-
-
-
-
-
45
-
-
-
-
-
-
140
680
100
Max.
2.5
2.5
280
25
1.23
25
16
-
2
-
2
0.8
5.0
250
0.8
-
-135
0.8
-
-270
200
1000
-
Units
V
V
nS
uA
V
mA
V
uA
uA
uA
uA
V
V
KHz
V
V
uA
V
V
uA
nS
nS
nS
2
3
3
Min.
1.16
2.7
2.7
2.7
NOTES:
1
Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.
2
Vcc=+12V and VREF Out connected to VREF IN unless otherwise specified.
3
Measure using a 300µS pulse with a 2% Duty Cycle.
2
Rev. C 6/00
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