Datasheet MSK4357EU, MSK4357HU, MSK4357S, MSK4357ED, MSK4357U Datasheet (MSK)

M.S.KENNEDY CORP.

ISO-9001 CERTIFIED BY DSCC

28 AMP, 500 VOLT IGBT PLUS DIODE

SMART POWER 3-PHASE MOTOR

DRIVE POWER HYBRID

4357

4707 Dey Road Liverpool, N.Y. 13088

FEATURES:

500V, 28 Amp Capability at 125°C

Ultra Low Thermal Resistance

Integral Free Wheeling Fast Recovery Epitaxial Diode (FRED)

Self-Contained, Smart Lowside/Highside Drive Circuitry

Under-Voltage Lockout, Internal 2uS Deadtime

Capable of Switching Frequencies to 25KHz

Isolated Case Allows Direct Heat Sinking

Case Bolt-down Design Allows Superior Heat Dissipation

MIL-PRF-38534 CERTIFIED

[phone]

DESCRIPTION:

The MSK 4357 is a 28 Amp, 3 Phase Bridge Smart Power Motor Drive Hybrid with a 500 volt rating. The output

switches are Insulated Gate Bipolar Transistors (IGBT's) tailored for high switching speeds. The free-wheeling diodes

are the new Fast Recovery Epitaxial Diodes (FRED's) to provide matched current capabilities with the IGBT's and are

specified with excellent reverse recovery times at high current ratings. This new smart power motor drive hybrid is

compatible with 5v CMOS or TTL logic levels. The internal circuitry prevents simultaneous turn-on of the in-line half

bridge transistors with a built-in 2uS deadtime to prevent shoot-through. Undervoltage lockout shuts down the bridge

when the supply voltage gets to a point of incomplete turn-on of the output switches. The internal high-side power

supply derived from the +15 volt supply completely eliminates the need for 3 floating independent power supplies for

the high-side drive.

EQUIVALENT SCHEMATIC

TYPICAL APPLICATIONS

3 PHASE SIX STEP DC BRUSHLESS MOTOR DRIVE

OR 3 PHASE SINUSOIDAL INDUCTION MOTOR DRIVE

PIN-OUT INFORMATION

1

VCC

2

AØHIN

3

AØLIN

4

BØHIN

5

BØLIN

6

CØHIN

7

CØLIN

8

ITRIP

9

VSS

1

18

AV+

17

AØ

16

AV-

15

BV+

14

BØ

13

BV-

12

CV+

11

CØ

10

CV-/ISENSE

PRELIMINARY Rev. E 11/01

ABSOLUTE MAXIMUM RATING

High Voltage Supply

V+

Logic Supply

VCC

Continuous Output Current

IOUT

Peak Output Current

IPK

Thermal Resistance

JC

(Output Switches) (Junction to Case)

○○○○○○○○○○○○○○○○○○○○

○○○○○○○○○○○○○○○

○○○○○○○○○○○

○○○○○○○○○○○○○○○

○○○○○○○○○○○○

500V

18V

28A

60A

0.48°C/W

Storage Temperature Range

TST

Lead Temperature Range(10 Seconds)

TLD

Case Operating Temperature

TC

MSK4357

MSK4357H/E

Junction Temperature

TJ

○○○○○○○○○○○○

○○○○○○○○○

-65°C to +150°C

○○○

-40°C to +85°C

-55°C to +125°C

○○○○○○○○○○

300°C

+175°C

ELECTRICAL SPECIFICATIONS

Parameters

Test Conditions

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

Group A

Subgroup

5

MSK 4357H/E 3

Min.

OUTPUT CHARACTERISTICS

VC-E On Voltage (Each IGBT)

Instantaneous Forward Voltage

(FRED Flyback Diode)

Reverse Recovery Time 1

Leakage Current

IC=28A

ID=28A

ID=28A,di/dt=100A/uS,Vr=350V

V+=500V

V+=400V

V+=500V

1

2

3

1

2

3

-

1

2

3

-

-

-

-

-

-

-

-

-

-

BIAS SUPPLY CHARACTERISTICS

Quiescent Bias Current

VCC=15V

1

2

3

-

-

-

INPUT SIGNALS CHARACTERISTICS

Positive Trigger Threshold Voltage

Negative Trigger Threshold Voltage

VCC=15V

VCC=15V

1,2,3

1,2,3

2.2

-

SWITCHING CHARACTERISTICS 1

Upper Drive:

Turn-On Propagation Delay

Turn-Off Propagation Delay

Turn-On

Turn-Off

Lower Drive:

Turn-On Propagation Delay

Turn-Off Propagation Delay

Turn-On

Turn-Off

Dead Time

Minimum Pulse Width

V+=270V,VCC=15V,IC=28A

V+=270V,VCC=15V,IC=28A

4

4

4

4

4

4

4

4

-

-

-

-

-

-

-

-

-

-

-

300

NOTES:

1

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

2

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

3

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

4

Subgroups 5 and 6 testing available upon request.

5

Subgroup 1,4

2,5

3,6

TA=TC=+25°C

TA=TC=+125°C

TA=TC=-55°C

Typ.

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2

-

Max.

2.0

1.7

TBD

1.7

1.3

2.5

180

400

1.5

400

6

12

TBD

-

0.8

TBD

TBD

45

350

TBD

TBD

45

350

-

-

MSK 4357 2

Min.

-

-

-

-

-

-

-

-

-

-

-

-

-

2.2

-

-

-

-

-

-

-

-

-

-

300

Typ.

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

2

-

Max.

2.2

-

-

1.7

-

-

180

400

-

-

6

-

-

-

0.8

TBD

TBD

45

350

TBD

TBD

45

350

-

-

UNITS

V

V

V

V

V

V

nS

uA

mA

uA

mA

mA

mA

V

V

nS

nS

nS

nS

nS

nS

nS

nS

uS

uS

2

PRELIMINARY Rev. E 11/01

APPLICATION NOTES

PROTECTIONMSK4357 PIN DESCRIPTION

VCC - is the low voltage supply for all the internal logic and

drivers. A 0.1uF ceramic capacitor in parallel with a 10uF

tantalum capacitor is recommended bypassing for the VCC-

VSS pins.

VSS - is the low voltage supply return pin and the input logic

return reference. All logic input and logic output is referenced

to this pin. This pin can vary ± 5V from the AV-,BV-,CV-/

ISENSE power return pin without affecting any of the logic

functions.

AØHIN, BØHIN, CØHIN - are low active logic inputs for signal-

ling the corresponding phase high-side switch to turn on. The

input levels are 5V CMOS or TTL compatible. Typical propa-

gation delays are around 600nS.

AØLIN, BØLIN, CØLIN - are low active inputs for signalling

the corresponding phase low-side switch to turn on. The in-

put levels are 5V CMOS or TTL compatible. Typical propaga-

tion delays are around 600nS.

ITRIP - is an analog input pin for sensing current flowing from

the AV-,BV-,CV-/ISENSE pin through a sense resistor to the

high power ground. A 0.485 volt level at this pin with re-

spect to VSS will signal an overcurrent condition and shut

down all output switching. Bringing the voltage below this

point (100 mV hysteresis) will remove the shutdown condi-

tion, and leaving the low-side logic inputs simultaneously high

(de-activated) for 10uS will restore normal operation.

All logic inputs use a 300nS filter. A pulse width below this

-

will get ignored.

VCC voltage below the cutoff level of 8.65 volts will reset all

-

switch outputs off and ignore subsequent logic inputs until

VCC is restored.

Undervoltage lockout of the internal drivers for the high-side

-

switches also occurs at 8.65 volts. This may occur if the

high-side output gets switched at greater than 25 kHZ with-

out switching the low-side. The internal power supply for the

high-side switch will sag too low for adequate switching. Ei-

ther slow down the PWM rate or PWM the low-side switches

instead.

Switching a low-side logic input while the corresponding phase

-

high-side logic input is activated will turn off both switches.

The opposite condition is also true. This is cross-conduction

lockout and will occur any time low and high-side inputs for a

phase are activated at the same time.

A 2uS deadtime is automatically inserted between high and

-

low-side output switching to allow complete turn-off of each

switch so no overlap will occur.

An overcurrent condition detected by the ITRIP pin will shut

-

down all output switches until the overcurrent condition is

removed and all three low-side logic inputs are held high for

10uS, then normal operation will resume.

AV+,BV+,CV+ - are the connections from the tops of the

three half bridges to the high voltage positive rail. Connec-

tions must be made individually from each pin to the rail, with

enough current-handling capability for the load. Proper power

supply bypassing must be connected to these three pins and

the Vss connections for proper filtering. This bypassing must

be done as close to the hybrid as possible.

AV-,BV- - are the connections from the bottoms of the AØ

and BØ half bridges to the return of the high voltage negative

rail. These pins should be tied to the CV-/ISENSE with as

short a connection as possible.

CV-/ISENSE - is the connection from the bottom of the CØ

half bridge to the return of the high voltage negative rail. There

should be a connection to AV- and BV- here. If there is cur-

rent sensing, then a sense resistor should go between this

point and the return of the high voltage supply. If no sensing

is desired, then this point should connect to Vss, the negative

rail of the high voltage supply and any high voltage bypass

capacitance.

AØ, BØ, CØ - are the pins connecting the 3 phase bridge

switch outputs.

ITRIP has a 400nS leading edge blanking time after switching

-

to ignore any switching current transients.

TYPICAL OPERATION

FIGURE 1

GROUNDING, BYPASSING, CURRENT SENSE

EXAMPLE:

FOR 20 AMP LIMIT:

R-SENSE = 0.050 OHMS

R-SENSE VOLT = 1 VOLT

R1 = 51.5 OHMS

R2 = 48.5 OHMS

3

PRELIMINARY Rev. E 11/01

TYPICAL PERFORMANCE CURVES

4

PRELIMINARY Rev. E 11/01

TYPICAL SYSTEM OPERATION

The MSK4357 is designed to be used with a +270 volt high voltage bus, +15 volt low power bus, and +5 volt logic signals.

Proper derating should be applied when designing the MSK4357 into a system. High frequency layout techniques with ground

planes on a printed circuit board is the only method that should be used for circuit construction. This will prevent pulse jitter caused

by excessive noise pickup on the current sense signal or the error amp signal.

Ground planes for the low power circuitry and high power circuitry should be kept separate. The connection between the bottom

of the current sense resistor, VSS pin and the high power ground are connected at this point. This is a critical path, and high

currents should not be flowing between the current sense and VSS. Inductance in this path should be kept to a minimum. An RC

filter (shown in 2 places) will filter out the current spikes and keep the detected noise for those circuits down to a minimum.

In the system shown, two types of current limit are implemented. The first limit is a PWM pulse by pulse limit controlled by the

motor controller. A second absolute maximum limit is set up for the MSK4357 which will completely shut off the bridge in the

event that current limit is exceeded.

The logic signals coming from the typical motor controller IC are set up for driving N channel low side and P channel high side

switches directly, and are usually 15 volt levels. Provision should be made for getting 5 volt logic signals to the MSK4357 of the

correct assertion levels. Typically, the low side signals out of the controller are high active and the high side are low active.

Inverters are shown in the system schematic for the low side controller output.

5

PRELIMINARY Rev. E 11/01

MECHANICAL SPECIFICATIONS

ALL DIMENSIONS ARE ±0.010 INCHES UNLESS OTHERWISE LABELED

ORDERING INFORMATION

MSK4357 H U

LEAD CONFIGURATION

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

SCREENING

BLANK=INDUSTRIAL, E=EXTENDED RELIABILITY;

H=CLASS H

GENERAL PART NUMBER

THE ABOVE EXAMPLE IS A MILITARY GRADE HYBRID WITH LEADS BENT UP.

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.

Please visit our website for the most recent revision of this datasheet.

PRELIMINARY Rev. E 11/016