Power Pems MSK 4225 - 5 Pages


MIL-PRF-38534 CERTIFIED

M.S.KENNEDY CORP.

75 VOLT 20 AMP MOSFET

H-BRIDGE PWM MOTOR

DRIVER/AMPLIFIER

4225

(315)701-6751

4707 Dey Road Liverpool, N.Y. 13088

FEATURES:

• Low RDS(ON) 0.013Q Typical

• Low Cost, Non-Hermetic, Complete H-Bridge

•20 Amp Capability, 75 Volt Maximum Rating

• Self-contained Smart Lowside/Highside Drive Circuitry

• Internal 45KHz PWM Generation, Shoot-through Protection

• Isolated Case Allows Direct Heatsinking

• Logic Level Disable Input

• Logic Level High Side Enable Input for Special Modulation or Function

DESCRIPTION:

The MSK 4225 is a complete H-Bridge circuit to be used for DC brushed motor control or Class D switchmode amplifi-

cation. All of the drive/control circuitry for the lowside and highside switches are internal to the circuit. The 45KHz 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 4225 is constructed in a space efficient plastic power package that can be

directly bolted to a heatsink.

EQUIVALENT SCHEMATIC

O-

Q-

0—

Q-

©-

CD-

CD—

©-

CD-

CD-

i—*»

45KHz

PWM

GENERATOR

H-BRIDGE

DRIVE

CIRCUITRY

V"—I

<5

<5

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

MSK 4225

SPEAKER

NC

VCC

HEN

DIS

NC

INPUT

NC

8 GND

9 GND

10 NC

1

2

3

4

5

6

7

20

19

18

17

16

15

14

13

12

11

RSENSEA

RSENSEA

OUTPUT A

OUTPUT A

V +

V +

OUTPUT B

OUTPUT B

RSENSE B

RSENSE B

1

Rev. F 1/11

Power Pems MSK 4225
  1. P. 1

  2. P. 2

    ABSOLUTE MAXIMUM RATINGSV+VCCIOUTIPKVOUTθJC5High Voltage Supply 675VLogic Supply16VContinuous Output Current20APeak Output Current40AOutput Voltage...
  3. P. 3

    APPLICATION NOTESTYPICAL SYSTEM OPERATIONMSK 4225 PIN DESCRIPTIONSVCC - Is the low voltage supply for powering internal logicand drivers for the lowside...
  4. P. 4

    TYPICAL PERFORMANCE CURVESINPUT CURRENT vs TEMP.1.05< 0.95 K. 0.55- 0.25■40 -20 0 20 40 60 80100120CASE TEMPERATURE, (°C) 4Rev. F 1/...
  5. P. 5

    MECHANICAL SPECIFICATIONS2.6002.150 -(4x) 0.145 (THRU) 0.225 RE7T(4x) 0.312 (0.315 DEEP)0.150 1j~NON-CUMU0.150 TYPLATIVET1.350(20x)0.050 -0.100BOTH SIDES0.475...
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