Datasheet MSK4202RHU, MSK4202KRHU, MSK4202KRHD, MSK4202HRHS, MSK4202RHD Datasheet (MSK)

ISO 9001 CERTIFIED BY DSCC

70 VOLT 10 AMP RAD-HARD

H-BRIDGE PWM MOTOR

4202RH

M.S.KENNEDY CORP.

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

DRIVER/AMPLIFIER

FEATURES:

User Adjustable PWM Frequency

70 Volt, 10 Amp Capability

Self-Contained Smart Lowside/Highside Drive Circuitry

Internal PWM Generation, Shoot-through Protection

Isolated Case Allows Direct Heatsinking

On Board 5Volt Rad-Hard Regulator

Available Fully Screened To MIL-PRF-38534 Class K and Class H

Total Dose Rated to 100K RAD

Logic Level High Side Enable Control

Logic Level Disable Input

DESCRIPTION:

The MSK 4202RH is a radiation hardened complete H-Bridge hybrid intended for use in DC brushed motor control

applications or Class D switchmode amplification in space or other severe operating environments. The design will exhibit

high resistance to Single Event Effects (SEE), Single Event Gate Rupture (SEGR), total dose up to 100K RAD and neutron

tolerance for military applications. All of the drive/control circuitry for the lowside and highside switches are internal to the

hybrid, as well as a +5V linear regulator. 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 4202RH is packaged in

a space efficient isolated 18 pin power package available in three lead form configurations that can be directly connected

to a heatsink.

EQUIVALENT SCHEMATIC

MIL-PRF-38534 QUALIFIED

CERTIFIED TO CLASS K

TYPICAL APPLICATIONS

1

Rev. A 5/00

ELECTRICAL SPECIFICATIONS

Parameter

OUTPUT CHARACTERISTICS

VDS(ON) Voltage (Each MOSFET)

Instantaneous Forward Voltage, Each MOSFET

(Intrinsic Diode)

2

RDS (ON) each mosfet

Leakage Current, Each MOSFET

PWM Frequency

Vcc SUPPLY CHARACTERISTICS

Quiescent Current

+5V OUT

OUTPUT DUTY CYCLE

SWITCHING CHARACTERISTICS

Rise-Time

Fall-Time

Dead-Time

LOGIC CONTROL INPUTS

DIS Input

HEN Input

2

2

6

VIN=5V

VIN=OV

2

2

Output A=100% Duty Cycle High

Output B = 0% Duty Cycle Low

Output A=0% Duty Cycle Low

Output B = 100% Duty Cycle High

Test Conditions

ID=10A

2

IS=10A

ID =10A TC =125°C

V+=70V

CT=N/C

CT=300pF TO GND

VIN=2.5V

IOUT=0mA

IOUT=100mA

VIN=2.5VDC Both Outputs

RL=1K A to B

RL=1K A to B

RL=1K A to B

Input Voltage LO

Input Voltage HI

Input Current (High or Low)

Input Voltage LO

Input Voltage HI

Input Current (High or Low)

1

Subgroup

Group A

4

1

2

3

1

2

3

-

1

2

3

4,5,6

4,5,6

1,2,3

1,2,3

1,2,3

4,5,6

7

7

-

-

-

1,2,3

1,2,3

1,2,3

1,2,3

1,2,3

1,2,3

Min.

-

-

-

-

-

-

-

-

-

-

40

TBD

-

4.9

4.75

40

-

-

-

-

-

-

2.0

-

-

2.0

-

MSK 4202RH

Typ.

0.5

1.0

0.2

TBD

TBD

TBD

0.075

25

100

25

45

20

20

5.0

5.0

50

Verify

Verify

75

350

100

-

-

±100

-

-

±100

3

3030

30

3030

Max.

1.0

2.0

1.0

1.8

1.9

1.8

0.1

50

500

50

50

TBD

TBD

5.1

5.25

60

-

-

TBD

TBD

-

0.8

-

±250

0.8

-

±250

Units

V

V

V

V

V

V

Ω

uA

uA

uA

KHz

KHZ

mA

V

V

%

P/F

P/F

nS

nS

nS

V

V

uA

V

V

uA

NOTES:

VCC=12V, V+=28V, RSENSE A,B=Ground, CT=N/C, DIS=OV, HEN=N/C unless otherwise specified

1

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

2

Devices shall be 100% tested to subgroups 1,2,3,4, and 7. Subgroup 5 and 6 testing available upon request.

3

Subgroup 1,4,7 TA=TC= +25°C

4

2,5 TA=TC= +125°C

3,6 TA=TC= -55°C

Industrial grade devices shall be 100% tested at 25°C only.

5

The internal on resistance is for the die only. This should be used for thermal calculations only.

6

2

Rev. A 5/00

22

ABSOLUTE MAXIMUM RATINGS

V+

High Voltage Supply

VCC

Logic Supply

IOUT

Continuous Output Current

IPK

Peak Output Current

VOUT

Output Voltage Range

IOUT

(+5V Regulator)

VIN

Input Voltage

VIN

Logic Input Voltage

○○○○○○○○○○○○○○○○

○○○○○○○○○○○○○○○○○○○

○○○○○○○○○○○

○○○○○○○○○○○○○○○

GND-2V min. to V+ max.

○○○○○○○○○○○○○○○○

○○○○○○○○○○○○○○○○○○

○○○○○○○○○○○○

APPLICATION NOTES

MSK 4202RH PIN DESCRIPTIONS

70V

16V

10A

23A

500mA

5.5V

OV to TBD

TST

Storage Temperature Range

TLD

Lead Temperature Range

(10 Seconds)

TC

Case Operating Temperature

TJ

Junction Temperature

θJc

Thermal Resistance

(Output FETS)

○○○○○○○○○○○○○○○

(+5Vout Regulator)

○○○

-65°C to +150°C

○○○○○○○○○○

○○○

-55°C to +125°C

○○○○○○○○○○○○

○○○○○○○○○○○○○

300°C

+175°C

2.0°C/W

12°C/W

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. The +5V regulator also gets its supply voltage

from this pin.

V+ - Is the high 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 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.

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

Increasing the input voltage causes increasing duty cycles

at this output.

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

bridge. Decreasing the input voltage causes increasing

duty cycles at this output.

RSENSE A - Is the connection for the bottom of the A half

bridge. This can have a sense resistor connection to the

V+ return ground for current limit sensing, or can be con-

nected directly to ground. The maximum voltage on this

pin is ±2 volts with respect to GND.

RSENSE B - Is the connection for the bottom of the B half

bridge. This can have a sense resistor connection to the

V+ return ground for current limit sensing, or can be con-

nected 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.

INPUT - Is an analog input for controlling the PWM pulse

width of the bridge. A voltage higher than 2.5V will pro-

duce greater than 50% duty cycle pulses out of OUTPUT

A. A voltage lower than 2.5V will produce greater than

50% duty cycle pulses out of OUTPUT B.

DIS - Is the connection for disabling all 4 output switches.

DIS high overrides all other inputs. When taken low, ev-

erything functions normally. An internal pullup to Vcc will

keep DIS high if left unconnected. This pin should be

grounded if not used.

HEN - Is the connection for enabling the high side output

switches. When taken low, HEN overrides other inputs

and the high side switches remain off. When HEN is high,

everything functions normally. An internal pullup to Vcc

will keep HEN high if left unconnected.

+5V OUT- Is the output of the internal linear regulator.

This pin should be bypassed to GND using a 4.7µF tanta-

lum capacitor and a 0.1µF ceramic capacitor . This pin

can supply up to 500mA of output current for powering

other external circuitry, depending on case temperature

and input voltage.

CT- Is a connection to the internal ramp generator. An

external capacitor can be connected from this pin to GND

to lower the PWM frequency. The following chart is use-

ful to determine a capacitor for a lower PWM frequency.

CT (pF)

TBD

TBD

TBD

TBD

TBD

TBD

TBD

PWM FREQUENCY

1KHz

10KHz

15KHz

20KHz

25KHz

35KHZ

40KHz

3

Rev. A 5/00

TYPICAL SYSTEM OPERATION

This is a diagram of a typical application of the MSK 4202RH. The design Vcc voltage is +12 volts and should have a good low

ESR bypass capacitor such as a tantalum. 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 70V and negative spikes below -2V with respect to GROUND.

4

Rev.A 5/00

MECHANICAL SPECIFICATIONS

ALL DIMENSIONS ARE ±0.01 INCHES UNLESS OTHERWISE LABELED

ORDERING INFORMATION

MSK4202 H RH U

LEAD CONFIGURATIONS

S= STRAIGHT; U= BENT UP; D= BENT DOWN

RADIATION HARDENED

SCREENING

BLANK= INDUSTRIAL; H= MIL-PRF-38534 CLASS H

K= MIL-PRF-38534 CLASS K

GENERAL PART NUMBER

The above example is a Military grade class H hybrid with leads bent up.

M.S. Kennedy Corp.

8170 Thompson Rd., Cicero, New York 13039-9393

Tel. [phone]

FAX [phone]

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.

5

Rev.A 5/00