ML4428
V
MOTOR
+12V
330µF
400V
MUR150
IRF720
IRF720
IRF720
IR2118
1
2
3
4
8
7
6
5
V
VB
HO
VS
CC
IN
100Ω
25V
0.1µF
COM
N/C
25V
2.2µF
N/C
MOTOR
PH1
MUR150
IR2118
1
2
3
4
8
7
6
5
V
VB
HO
VS
CC
IN
PH3
100Ω
PH2
25V
0.1µF
COM
N/C
25V
2.2µF
N/C
Note: Refer to IK2118 data sheet for
complete information on using
this part with different FETs
and IGBTs.
MUR150
IR2118
1
2
3
4
8
7
6
5
V
VB
HO
VS
CC
IN
100Ω
25V
0.1µF
COM
N/C
25V
2.2µF
N/C
IRF720
IRF720
IRF720
100Ω
100Ω
R
SENSE
100Ω
300MΩ
10W
1kΩ
330pF
ML4428
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
I
GND
SNS
120kΩ
2
3
P1
R
REF
P2
C
OS
0.01µF
4
P3
BRAKE
PHI3
PHI2
PHI1
0.01µF
10µF
5.11kΩ
12kΩ
1nF
RUN
5
CSC
5.11kΩ
5.11kΩ
6
C
V
V
PWM
REF
BRAKE
7
8
C
SPEED
ISC
V
SPEED
787Ω
9
N1
RC
VCO
10
11
12
13
14
0.1µF
10kΩ
N2
R
INIT
0.1µF
N3
V
FLT
PWR FAIL
F/R
VCO
C
SNS
2kΩ
80kΩ
VCO
R
VCO
C
VCO
5.6nF
750pF
+12V
2MΩ
10kΩ
V
1µF
CC
FWD/REVERSE
25V
1µF
10µF
0.01µF
Figure 11. ML4428 High Voltage Motor Driver: 12V to 500V
14
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
