ISO 9001 CERTIFIED BY DSCC
M.S.KENNEDY CORP.
75 VOLT 8 AMP MOSFET
H-BRIDGE PWM MOTOR
DRIVER/AMPLIFIER
4222
(315) 701-6751
4707 Dey Road Liverpool, N.Y. 13088
FEATURES:
Low Cost Complete H-Bridge
8 Amp Capability, 75 Volt Maximum Rating
Self-contained Smart Lowside/Highside Drive Circuitry
Internal 250KHz PWM Generation, Shoot-through Protection
Isolated Case Allows Direct Heatsinking
Four Quadrant Operation, Torque Control Capability
Logic Level Disable Input
Logic Level High Side Enable Input for Special Modulation or Function
DESCRIPTION:
The MSK 4222 is a complete H-Bridge circuit to be used for DC brushed motor control or Class D switchmode
amplification. All of the drive/control circuitry for the lowside and highside switches are internal to the circuit. The
250KHz 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 4222 is constructed on a space efficient
ceramic coated insulated metal substrate that can be directly connected to a heatsink.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
1
2
3
4
5
6
7
8
9
1
PIN-OUT INFORMATION
HEN
Disable
N/C
Input
Ground
Ground
N/C
Vcc
Output A
18
17
16
15
14
13
12
11
10
Output B
Output B
Rsense B
Rsense B
V+
V+
Rsense A
Rsense A
Output A
Rev. B 6/00
1
2
3
4
5
