ISO 9001 CERTIFIED BY DSCC
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) 0.013Ω Typical
•
Low Cost 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
TYPICAL APPLICATIONS
1
2
3
4
5
6
7
8
9
10
1
PIN-OUT INFORMATION
NC
VCC
HEN
DIS
NC
INPUT
NC
GND
GND
NC
20
19
18
17
16
15
14
13
12
11
RSENSE A
RSENSE A
OUTPUT A
OUTPUT A
V+
V+
OUTPUT B
OUTPUT B
RSENSE B
RSENSE B
Rev. B 11/04
MSK [ M.S. KENNEDY CORPORATION ]
