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IC1300 OZ539IGN-A1-0-TR
BST 1
HDR
Q
LX 2
OVER CURRENT
PROTECTION
VIN 3
EN_SYS 4
USBOUT 5
FB_USB 6
VS
SEL
USBIN
7
VOUT_SYS (USBIN)
FAULT PROTECTION
SYNC 8
IC981 LC75879PT-US-H
80
79
78
77
76
CCB INTERFACE
SHIFT REGISTER
1
P3/S3
2
P4/S4
3
P5/S5
4
P6/S6
P7/S7
5
6
P8/S8
7
S9
8
S10
9
S11
10
S12
11
S13
12
S14
13
S15
14
S16
15
S17
16
S18
17
S19
18
S20
19
S21
20
S22
21 22
23 24
S
OSCILLATOR
R
REFERENCE
GENERATOR
+
ADJUSTMENT
GENERATOR
CHARGE
PUMP
OVER-CURRENT
LIMIT
2V
+
UVLS
–
USB FAULT
PROTECITON
75
74
73 72 71 70
69
CLOCK
GENERATOR
CONTROL
REGISTER
SEGMENT DRIVER & LATCH
25 26
27 28 29 30 31 32 33 34
35 36 37 38
16
VREF
15
RT
14
GNDA
13
SS_SYS
12
EN_USB
11
VIC_USB
10
ISET_USB
9
FLT_USB
68 67
66 65
64 63 62 61
COMMON
DRIVER
39 40
CDX-GT66UPW
– KEY Board –
IC971 74LVC2G66DC-125
1Y
1
1Z
2
2E
3
GND
4
60 S62
59 S61
58 S60
57 S59
56 S58
55 S57
54 S56
53 S55
52 S54
51 S53
50 S52
49 S51
48 S50
47 S49
46 S48
45 S47
44 S46
43 S45
42 S44
41 S43
8
VCC
7
1E
6
2Z
5
2Y
29
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