MSK MSK4361U, MSK4361HU, MSK4361S, MSK4361D Datasheet

ISO 9001 CERTIFIED BY DSCC

30 AMP, 75V, 3 PHASE

MOSFET BRUSHLESS

M.S.KENNEDY CORP.

4707 Dey Road Liverpool, N.Y. 13088 (315) 701-6751

FEATURES:

75 Volt Motor Supply Voltage

30 Amp Output Switch Capability

100% Duty Cycle High Side Conduction Capable

Shoot-Through/Cross Conduction Protection

Hall Sensing and Commutation Circuitry on Board

"Real" Four Quadrant Torque Control Capability

Good Accuracy Around the Null Torque Point

Isolated Package Design for High Voltage Isolation Plus Good Thermal Transfer

60°/ 120º Phasing Selectable

MOTOR CONTROLLER

MIL-PRF-38534 QUALIFIED

DESCRIPTION:

The MSK 4361 is a complete 3 Phase MOSFET Bridge Brushless Motor Control System in a convenient isolated

hermetic package. The hybrid is capable of 30 amps of output current and 75 volts of DC bus voltage. It has the

normal features for protecting the bridge. Included is all the bridge drive circuitry, hall sensing circuitry, commutation

circuitry and all the current sensing and analog circuitry necessary for closed loop current mode (torque) control.

When PWM'ing, the transistors are modulated in locked anti-phase mode for the tightest control and the most

bandwidth. Provisions for applying different compensation schemes are included. The MSK 4361 has good thermal

conductivity of the MOSFET's due to isolated package design that allows direct heat sinking of the hybrid without

insulators.

4361

BLOCK DIAGRAM

TYPICAL APPLICATIONS

3 Phase Brushless DC Motor Control

Servo Control

Fin Actuator Control

Gimbal Control

AZ-EL Control

PIN-OUT INFORMATION

1 REFOUT 13 E/A - 25 N/C 37 BØ

2 HALL A 14 GND 26 LGND 38 BV+

3 HALL B 15 +Current Command 27 RTN 39 AVS

4 HALL C 16 -Current Command 28 RTN 40 AVS

5 60 /120 17 +15 VIN 29 CVS 41 AØ

6 BRAKE 18 Current Monitor Out 30 CVS 42 AØ

7 CLOCK SYNC 19 -15 VIN 31 CØ 43 AV+

8 DIS 20 N/C 32 CØ

9 GND 21 N/C 33 CV+

10 N/C 22 N/C 34 BVS

11 N/C 23 GND 35 BVS

12 E/A OUT 24 N/C 36 BØ

Rev. C 6/00

ABSOLUTE MAXIMUM RATINGS

High Voltage Supply

Current Command Input

Logic Inputs

REFOUT External Load

E/A OUT External Load

Clock SYNC Input

Continuous Output Current

Peak Output Current

○○○○○○○○○○○○○○○○○○

○○○○○○○○○○○○

○○○○○○○○○○○○○

○○○○○○○○○○○○○○

○○○○○○○○○○○

○○○○○○○○○

○○○○○○○○○○○○○

-0.2V to REFOUT

ELECTRICAL SPECIFICATIONS

75V

±13.5V

15 mA

5 mA

-0.2V to +15V

30 Amps

41 Amps

Thermal Resistance (Output Switches)

RθJC

Storage Temperature Range

TST

Lead Temperature Range

TLD

○○○○○○○○○○○○○

(10 Seconds)

Case Operating Temperature

Junction Temperature

○○○○○○○○○○○○○○○

○○○○○

○○○○○○

1.5°C/W

-65°C to +150°C

+300°C

-55°C to +125°C

+150°C

Parameter

INPUT CURRENT

+15 VIN

-15 VIN

PWM

Clock Free Running Frequency

CLOCK SYNC INPUT

VIL

VIH

Duty Cycle

SYNC Frequency

REFERENCE

REFOUT

LOGIC INPUTS

(Hall A,B,C,Brake,60°/120°,DIS)

VIL

VIH

ANALOG SECTION

Current Command Input Range

Current Command Input Current

Transconductance

Offset Current

Current Monitor

Current Monitor Voltage Swing

ERROR AMP

E/A OUT Swing

Slew Rate

Gain Bandwidth Product

Large Signal Voltage Gain

OUTPUT SECTION

Voltage Drop Across Bridge (1 Upper & 1 Lower)

Leakage Current

Diode VSD

trr

Dead Time

Test Conditions

Output PWM'ing

Current Command=0 Volts

15mA Load

Current Command=0 Volts

5mA Load

30 AMPS

30 AMPS @ 150°c Junction

All switches off, V+=60V, 150°C Junction

Group A

Subgroup

5,6

1,2,3

5,6

2,3

5,6

MSK 4361(H)

Min. Typ. Max.

18.7

12.5

Clock +0

5.82

3.0

-13.5

2.70

2.55

-25

-50

0.300

0.280

-12

6.5

175

Clock +3

0.33

6.5

275

280

25.3

2.5

6.57

0.8

+13.5

1.5

3.30

3.45

0.367

0.380

+12

1.83

750

2.6

MSK 4361

Min. Typ. Max.

12.5

Clock +0

5.82

3.0

-13.5

2.55

-50

0.280

-12

6.5

175

Clock +3

0.33

6.5

275

280

2.5

6.57

0.8

+13.5

1.5

3.45

0.380

+12

1.83

750

2.6

Units

KHz

VOLTS

KHz

VOLTS

A/V

V/A

VOLTS

V/µSec

MHz

V/mV

VOLTS

µA

VOLTS

nSec

µSec

NOTES:

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

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

Military grade devices ("H" Suffix) shall be 100% tested to Subgroups 1, 2, 3 and 4.

Subgroups 5 and 6 testing available upon request.

Subgroup 1, 4 TA = TC = +25°C

Measurements do not include offset current at 0V current command.

2, 5 TA =TC =+125°C

3, 6 TA =TC = -55°C

Rev. C 6/00

APPLICATION NOTES

MSK 4361 PIN DESCRIPTIONS

AV+, BV+, CV+ - are the power connections from the hy-

brid to the bus. The pins for each phase are brought out

separately and must be connected together to the V+ source

externally. The external wiring to these pins should be sized

according to the RMS current required by the motor. These

pins should be bypassed by a high quality monolithic ceramic

capacitor for high frequencies and enough bulk capacitance

for keeping the V+ supply from drooping. 78 µF of ceramic

capacitance and 6200 µF of bulk capacitance was used in

the test circuit. The voltage range on these pins is from 16

volts up to 75 volts.

CURRENT MONITOR- is a pin providing a current viewing sig-

nal for external monitoring purposes. This is scaled at ±3

amps of motor current per volt output, up to a maximum of

±10 volts, or ±30 amps. As ±30 amps is exceeded, the

peaks of the waveform may become clipped as the rails of

the amplifiers are reached. This voltage is typically ±12.5

volts, equating to ±37 amps of current peaks.

E/A OUT - is the current loop error amp output connection.

It is brought out for allowing various loop compensation cir-

cuits to be connected between this and E/A-.

AØ, BØ & CØ- are the connections to the motor phase wind-

ings from the bridge output. The wiring to these pins should

be sized according to the required current by the motor. There

are no short circuit provisions for these outputs. Shorts to

V+ or gound from these pins must be avoided or the bridge

will be destroyed.

AVS, BVS, CVS - are the return pins on the bottom of each

half bridge. They are brought out separately and should be

connected together externally to allow the current from each

half bridge to flow through the sense resistor. The wiring on

these pins should be sized according to the current require-

ments of the motor.

RTN - is the power return connection from the module to the

bus. All ground returns connect to this point from internal to

the module in a star fashion. All external ground connections

to this point should also be made in a similar fashion. The

V+ capacitors should be returned to this pin as close as

possible. Wire sizing to this pin connection should be made

according to the required current.

LGND - is an isolated ground connection to the RTN pin of

the hybrid that is connected internally. For any circuitry that

needs to be connected to the RTN pin without the influence

of current flow through RTN should be connected at this

point.

E/A- -is the current loop error amp inverting input connec-

tion. It is brought out for allowing various loop compensa-

tion circuits to be connected between this and E/A OUT.

CLOCK SYNC- is an input for synchronizing to an external

clock. The sync circuit will trigger on the edges of the ap-

plied clock and effectively shorten the period of the internal

oscillator on each cycle. The frequency can be increased

from a free running 22 KHz to 25 KHz maximum. The clock

applied shall be 15 volts amplitude with at least a 10% duty

cycle.

REFOUT- is a 6.25 volt regulated output to be used for pow-

ering the hall devices in various motors. Up to 15 mA of

output current is available.

HALL A, B & C - are the hall input pins from the hall devices

in the motor. These pins are internally pulled up to 6.25

volts. The halls can reflect a 120/240 degree commutation

scheme or a 60/300 degree scheme.

BRAKE - is a pin for commanding the output bridge into a

motor BRAKE mode. When pulled low, normal operation com-

mences. When pulled high, the 3 high side bridge switches

turn on, causing rapid deceleration of the motor and will cease

motor operation until pulled high again. Logic levels for this

input are TTL compatible. It is internally pulled high.

GND - is a ground pin that connects to the ground plane for

all low powered circuitry inside the hybrid.

+15 VIN - is the input for applying +15 volts to run the low

power section of the hybrid. This pin should be bypassed

with a 10 µF capacitor and a 0.1 µF capacitor as close to this

pin as possible.

-15 VIN - is the input for applying -15 volts to run the low

power section of the hybrid. This pin should be bypassed

with a 10 µF capacitor and a 0.1 µF capacitor as close to this

pin as possible.

CURRENT COMMAND (+,-) - are differential inputs for con-

trolling the module in current mode. Scaled at ±3 amps per

volt of input command, the bipolar input allows both forward

and reverse current control capability regardless of motor com-

mutation direction. The maximum operational command volt-

age should be ±10 volts for ±30 amps of motor current.

DIS - is a pin for externally disabling the output bridge. A

TTL logic low will enable the bridge and a TTL logic high will

disable it. It is internally pulled up by a 100µAmp pullup.

60/120 - is a pin for selecting the orientation of the commu-

tation scheme of the motor. A high state will produce 60/

300 degree commutation, whereas a low state will produce

120/240 degree commutation. Logic levels for this input are

TTL compatible. It is internally pulled high.

Rev. C 6/00

+ 4 hidden pages

MSK MSK4361U, MSK4361HU, MSK4361S, MSK4361D Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual