Datasheet MSK4201, MSK4201B Datasheet (MSK)

ISO 9001 CERTIFIED BY DESC

28 VOLT 5 AMP MOSFET

H-BRIDGE PWM MOTOR

4201

M.S.KENNEDY CORP.

4707 Dey Road Liverpool, N.Y. 13088 [phone]

FEATURES:

Low Cost Complete H-Bridge

28 Volt, 5 Amp Capability, 75 Volt Maximum Rating

Self-contained Smart Lowside/Highside Drive Circuitry

Internal Deadtime Generation, Shoot-through Protection

Output Disable/Shutdown Capability

Isolated Case Allows Direct Heatsinking

Four Quadrant Operation, Torque Control Capability

Available Fully Screened To MIL-H-38534

DESCRIPTION:

The MSK 4201 is a complete H-Bridge hybrid to be used for DC brushed motor control or Class D switchmode

amplifier. All of the drive/control circtuitry for the lowside and highside switches are internal to the hybrid. The user

provides a TTL compatible PWM signal 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 MSK 4201

is packaged in a space efficient isolated 8 pin TO-3 that can be directly connected to a heatsink.

DRIVER/AMPLIFIER

MIL-PRF-38534 CERTIFIED

EQUIVALENT SCHEMATIC

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

5

V+

1

MOTOR B

2

VCC

3

DISABLE

4

1

GND

6

INPUT

7

MOTOR A

8

RSENSE

Rev. B 6/00

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

○○○○○○○○○○○○○○○○○○○

○○○○○○○○○○○○○○○

○○○○○○○○○○○

○○○○○○○○○○○○○○○

GND-2V min. To V+ max.

○○○○○○○○○○○○○

(Output Switches)

ELECTRICAL SPECIFICATIONS

Parameter

OUTPUT CHARACTERISTICS

VDS(ON) Voltage (Each MOSFET)

Instantaneous Forward Voltage, Each MOSFET

(Intrinsic Diode)

Reverse Recovery Time (Intrinsic Diode)

Leakage Current, Each MOSFET

LOGIC SUPPLY CHARACTERISTICS

Quiescent Logic Current

INPUT SIGNALS CHARACTERISTICS

Threshold Voltage

SWITCHING CHARACTERISTICS

Turn-On Propagation Delay (Includes Deadtime)

Turn-Off Propagation Delay

Rise-Time

Fall-Time

Dead-Time

Test Conditions

1

V+=28V, VCC=12V, IC=2A

1

2.6°C/W

ID=2A

1

IS=2A

V+=75V

V+=70V

V+=75V

VCC=12V

(non-switching)

VCC=12V

75V

16V

5A

37A

Storage Temperature Range

TST

Lead Temperature Range

TLD

○○

-65°C to +150°C

○○○○○○○○○○○

(10 Seconds)

Case Operating Temperature

TC

MSK4201

MSK4201B

Junction Temperature

TJ

○○○○○○○○○○○○

○○○○○○○○○○○

○○○○○○○○○○○

-55°C to +125°C

-25°C to +85°C

+175°C

All Ratings: Tc= +25°C Unless Otherwise Specified

Subgroup

Group A

5

1

2

3

1

2

3

-

1

2

3

1

2

3

1,2,3

4

4

4

44

4

44

4

-

MSK 4201B

Min.

-

-

-

-

-

-

-

-

-

-

-

-

-

0.8

-

-

-

-

-

Typ.

0.55

0.90

0.36

0.95

0.85

1.0

-

1.0

2.0

0.5

11

11

11

1.5

160

85

36

170

100

3

Max.

0.8

1.2

0.60

1.1

0.95

1.25

240

5

10

5

15

15

15

2.7

TBD

TBD

TBD

TBD

-

Min.

-

-

-

-

-

-

-

-

-

-

-

-

-

0.8

-

-

-

-

-

MSK 4201

Typ.

0.55

-

-

0.95

-

-

-

1.0

-

-

11

-

-

1.5

160

85

36

170

100

2

Max.

1.0

-

-

1.2

-

-

240

10

-

-

15

-

-

2.7

-

-

-

-

-

300°C

Units

V

V

V

V

V

V

nS

uA

uA

uA

mA

mA

mA

V

nS

nS

nS

nS

nS

NOTES:

Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.

1

Industrial grade devices shall be tested to subgroups 1 and 4 unless otherwise specified.

2

Military grade devices ("B" suffix) shall be 100% tested to subgroups 1,2,3 and 4.

3

Subgroups 5 and 6 testing available upon request.

4

Subgroup 1,4 T

5

2 TA=TC= +125°C

3 TA=TC= -55°C

A=TC= +25°C

2

3030

30

3030

Rev. B 6/00

APPLICATION NOTES

MSK 4201 PIN DESCRIPTION

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.

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 by-passing to

GND with sufficient capacitance to suppress any volt-

age transients, and to ensure removing any drooping

during switching, should be done as close to the pins

on the hybrid as possible.

MOTOR A - Is the output pin for one half of the bridge.

When the PWM input is high, this output will be pulled

up to V+.

MOTOR B - Is the output pin for the other half of the

bridge. When the PWM input is low, this output will be

pulled up to V+.

RSENSE - This is the common connection for the bot-

tom of the bridge. This can have a sense resistor con-

nection to the V+ return ground for current limit sens-

ing, or can be connected directly to ground. The maxi-

mum voltage on this pin is ±2 volts with respect to

GND.

GND - Is the return connection for the input logic and

Vcc.

PWM INPUT - Is a TTL compatible input pin for provid-

ing the PWM signal to modulate the output switches.

The duty cycle can be between 0% (DC Low) and 100%

(DC High). See typical system operation notes.

DISABLE INPUT - Is a TTL compatible input for provid-

ing a shutdown signal to the hybrid for disabling all

four switches in the bridge regardless of the PWM in-

put level. A digital 1 disables, a digital 0 enables.

IN

3

Rev. B 6/00

TYPICAL SYSTEM OPERATION

This is a diagram of a typical application of the MSK 4201. The design Vcc voltage is +12 volts and should have a good low

ESR bypass capacitor such as a tantalum. The PWM and DISABLE signals are typically provided by some type of microprocessor

control. The PWM signal will be a TTL signal with a pulse frequency required by the system, and pulse duty cycles according to the

required direction/speed. A 0% duty cycle (continuous TTL low) will mean full voltage to the motor in one direction. A 100% duty

cycle (continuous TTL high) will mean full voltage to the motor in the other direction. A 50% duty cycle will hold the motor at 0

RPM.

Current sensing is done in this case by a 0.1 ohm sense resistor to sense current from either leg of the bridge. It is important

to make the high current traces as wide 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. The storage capacitor should

be a low ESR ceramic capacitor or large polypropylene capacitor. Mount capacitor as close to the 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) of the hybrid.

4

Rev. B 6/00

MECHANICAL SPECIFICATIONS

ALL DIMENSIONS ARE ±.01 INCHES UNLESS OTHERWISE LABELED

ORDERING INFORMATION

Part

Number

MSK4201

MSK4201B

M.S. Kennedy Corp.

4707 Dey Road, Liverpool, New York 13088

Phone [phone]

FAX [phone]

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.

Screening Level

Industrial

Military-Mil-H-38534

5

Rev. B 6/00