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ISO 9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
200 VOLT 20 AMP MOSFET H-BRIDGE WITH GATE DRIVE
4227
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
FEATURES: * Low Cost Complete H-Bridge *20 Amp Capability, 200 Volt Maximum Rating * Self-contained Smart Lowside/Highside Drive Circuitry * Shoot-through Protection * Isolated Case Allows Direct Heatsinking * Logic Level Disable Input * Individual Logic Level Gate Drive Inputs for Various Modulation Schemes DESCRIPTION:
The MSK 4227 is a complete H-Bridge circuit to be used for DC brushed motor control or Class D switchmode amplification. All of the drive/control circuitry for the lowside and highside switches are internal to the circuit. Logic level inputs are provided for controlling each MOSFET independently, allowing every possible switch combination except those that would cause a simultaneous conduction or shoot-through condition for each half bridge. This gives the user freedom to use various modulation schemes for PWM control. The MSK 4227 is constructed in a space efficient plastic power package that can be directly bolted to a heatsink.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
1 2 3 4 5 6 7 8 9 10
1
PIN-OUT INFORMATION
NC HINA LINA +VCC +VB COM COM HINB LINB NC 20 19 18 17 16 15 14 13 12 11 AVAVAO AO V+ V+ BO BO BVBVRev. B 11/04
ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS
Tc= +25C Unless Otherwise Specified
MSK 4227 Parameter OUTPUT CHARACTERISTICS RDS (ON) 1 4 VDS(ON) Voltage Instantaneous Forward Voltage Reverse Recovery Time 1 Leakage Current +Vcc SUPPLY CHARACTERISTICS 7.4 0.9 15 3.2 18 mA V Each MOSFET ID=20A Each MOSFET ID=20A 3 3 1.2 1.02 3.0 0.09 1.8 1.2 330 250 V V nS A Test Conditions 2 Min. Typ. Max. Units
Each MOSFET IS=20A Intrinsic Diode Intrinsic Diode Each MOSFET V+=200V
Quiescent Bias Current Vcc Voltage Range 1 +VB SUPPLY CHARACTERISTICS
Quiescent Bias Current Bias Current @ 20KHz +VB Voltage Range LOGIC CONTROL INPUTS, HINA, LINA, HINB, LINB 1 Input Voltage LO Input Voltage HI Input Current (VIN=5V) SWITCHING CHARACTERISTICS Rise Time Fall Time Dead Time 1 RL=100
9.8
100 4 15
300 6 18
2.7 -
-
0.8 20
-
90 100 1
-
NOTES:
1 2 3 4 Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only. +Vcc=+15V, +VB=+15V, V+=100V, AV-, BV- = Ground unless otherwise specified. Measured using a 300S pulse with a 2% Duty Cycle. On Resistance is specified for the Internal MOSFET for Thermal Calculations. It does not include the package pin resistance.
2
Rev. B

2.3C/W
-40C to +85C +150C

V+ VCC IOUT IPK JC
High Voltage Supply Logic Supply Continuous Output Current Peak Output Current Thermal Resistance (Output Switches @ 125C)
200V 18V 20A 44A
TST Storage Temperature Range TLD Lead Temperature Range (10 Seconds) TC Case Operating Temperature MSK4227 TJ Junction Temperature
-55C to +125C 300C
A mA V
V V A
nS nS S
11/04
APPLICATION NOTES MSK 4227 PIN DESCRIPTIONS
+VCC - Is the low voltage supply for all the internal logic and drivers. A 0.1F ceramic capacitor in parallel with a 10F tantalum capacitor is the recommended bypassing from the +VCC pin to the COM pin.
TYPICAL SYSTEM OPERATION
HINA, HINB - Are high active logic inputs for signaling the corresponding phase high-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.
LINA, LINB - Are low active logic inputs for signaling 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.
AO, BO - Are the pins connecting the 3 phase bridge switch options.
AV-, BV- - 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.
This is a diagram of a typical application of the MSK4227. The design +Vcc voltage is +15 volts and should have a good low ESR bypass capacitor such as a tantalum electrolytic. The digital inputs can come from a microprocessor or any type of PWM controller. The controller will use the current sense signal to either control current through PWM, current limit the bridge, or both.
IN
COM - Is the connection that all hybrid power supply connections are returned to and bypassed to.
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 module 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 the capacitor as close to the module 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. Any modulation scheme may be used, however, but the current sensing scheme may have to change. 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 200V and negative spikes below -2V with respect to ground.
3
Rev. B
11/04
MECHANICAL SPECIFICATIONS
ESD Triangle Indicates Pin 1. NOTE: ALL DIMENSIONS ARE 0.010 UNLESS OTHERWISE LABELED.
ORDERING INFORMATION
Part Number MSK4227S MSK4227D MSK4227U MSK4227G Screening Level Industrial Industrial Industrial Industrial Lead Configuration Straight Down Up Gull Wing
M.S. Kennedy Corp.
4704 Dey Road, Liverpool, New York 13088 Phone (315) 701-6751 FAX (315) 701-6752 www.mskennedy.com
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.
4
Rev. B
11/04

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