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L1251
47uH
R1223
680
TP1260
EFMO
9 8
14 13 12 11 10
1 2 3 4 5 6 7
HDON
R1425
2.7K
LEAD IN
HINF
LOADING
MINF
TP1616
C1605
00/10
R1613
R1610
C1604
27K
56P(CH)
30K
R1611
12K
REG+
CH3IN
1
REGB
+
2
–
IN1+
1.25V
3
4
VBS1
VBS2
Vm1
5
Vm2
IN1–
6
OUT1
7
VM1–
8
9
VM1+
10
GND
11
VM2+
12
13
VM2–
14
OUT2
2
15
IN2–
16
IN2+
17
MUTE1
0
18
MUTE2
19
SS.GND
VREF
20
21
VREFO
IC1601
M56758FP
5-CH MOTOR DRIVER
• The numbers
1
to
24
7
R1426
LOADIN
R1614
18K
INNSW
42
OUT3
C1656
41
0.0056
IN3–
40
39
38
37
IN3+
C1602
C1657
36
4.7
0.0056
VM3–
35
SPN
34
SPP
VM3+
33
32
31
VM4+
30
VM4–
29
SLP
VM5+
28
SLN
OUT5
VM5–
27
IN5–
26
IN5+
25
IN4+
24
R1667
23
IN4–
22K
22
OUT4
R1669
6.8K
are waveform numbers shown in page 70 and 71.
8
Figure 63 SCHEMATIC DIAGRAM (18/20)
MINF
HINF
C1402
0.047
1K
LDVAR
R1406
3.3K
R1420
1K
RESET
MCCK
DINT
DSENSE
SERCH
C1412
680P
R1407
3.3K
LD+
LD–
CIN
J1405
10K
SPDRR
SPDRF
1
2
Q1403
RN2404
SLDRR
SLDRF
TP1612
R1666
22K
L1601
C1661
1µH
100/10
9
10
– 63 –
R1401
1K
TP1405
R1404
1K
R1472
47K
99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
100
1
2
LDVAR
3
ADJS
4
5
6
LOAD IN
7
ERROR
8
BYTE
9
CNVSS
STID OUT
10
SEACH OUT
11
RESET
12
IC1401
13
IX0227AW
VSS
14
MD SYSTEM MICON
MCCK
15
CONTROL
16
VCC
17
DINT
18
DSENSE
19
ST-ID
20
SERCH
21
MDRSW
22
FSW
23
VARI-P SW
24
P-DOWN
25
HDON
26
LD+
27
28
LD–
31 32
CIN
29
30
INNER
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
31 32
R/P
Q1402
1
RNC1404
2
3
2
3
Q1401
1
3
2
3
RN2404
Q1404
1
RNC1404
11
MD-X8H
VREF3.2V
R1423
10K
R1424
10K
XRST
DIGCD
DIGEX
82 81
DFS1
DFS0
DAPON
ADPON
A/B
LDON
PCNT1
PCNT0
L3CLK
L3MODE
L3DATA
GND
VCC
EEPK
EEPD
EPCS
EEPRO
SYSD0
SYSD1
49 50
SYSD2
SYSD3
IC1402
S29294A
5
4
DI
SK
6
DATA
3
CS
R1416
10K
7
GND
VCC
2
8
1
PRTCT
2
E
PROM
12
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