ml4425 Microsemi Corporation, ml4425 Datasheet - Page 14

• Manufacturer Part Number: ml4425
• Description: Sensorless Bldc Motor Controller
• Manufacturer: Microsemi Corporation

ML4425
14
24V–80V
V BUSS
12V
D4
330µF
400V
C5
D5
D6
100nF
(3 1N5819)
C16
25V
IRF720
100nF
Q1
10k
100
C3
R5
R6
100
R9
V CC
IN
COM
NC
IR2118
100
R10
470m
Figure 12. ML4425 High Voltage Motor Drive Application Circuit
R12
2W
IRF720
HO
NC
Q2
VB
VS
100
R11
100nF
1nF
C15
C4
IRF720
MUR150
Q3
2.2µF
100
C19
25V
R7
D1
12V
787
10k
R19
R20
1µF
C6
100nF
IR720
C17
25V
Q4
IRF720
Q5
100
V CC
IN
COM
NC
IR2118
R8
100nF
1k
R1
C7
I SENSE
HA
HB
HC
SPEED COMP
C T
V REF
SPEED SET
LA
LB
LC
I LIMIT
VCO/TACH
V DD
HO
NC
VB
VS
IRF720
Q6
ML4425
2.2nF
MUR150
C1
2.2µF
C20
25V
RAMP COMP
D2
UV FAULT
SPEED FB
MOTOR
BRAKE
C VCO
R VCO
GND
C IOS
R REF
FB C
FB A
FB B
C AT
C RT
100nF
C18
25V
10nF
C8
137k
C13*
C10
1µF
V CC
IN
COM
NC
IR2118
R18
R15 (RES1)
80.6k
R14 (RES1)
HO
330pF
NC
R16
VB
VS
10k
C14
C12
1µF
R17
R13 (RES1)
MUR150
2.2µF
C21
25V
D3
470nF
100nF
C9
C11
PRE-CHARGE
BOOTSTRAP
CAPACITOR
RUN
BRAKE
S1