73D02962C89-O
SHEET 22 OF 23
High - Shut-Down
Low - Normal
X - Normal(Run)
CPU,FPGA,RAM,Flash,Watch_Dog
Leds ,DIs,Expansion
N.C.
N.C.
N.C.
Max_Charged to 6V
Protection for LDO
Protection for LDO
90mOHM@3.3V
N.C.
Quiescent Current ~1uA
Schottky
Schottky
Schottky
Bi-Directional Switch
5.2
N.C.
N.C.
placed for lithium battery
placed for lithium battery
N.C.
N.C.
U25
LTC1435IS
3.3_VCC
100n
C597
0.
Moscad-M
Power Supply of 3.3V
Frequency 250kHz
Vo=1.19(1+75/45.3)=3.1602V
0.
R410
R411
C245
100.n
100.n
C244
C267
68p
C224
100.u
C223
100.u
15u
L2
C76
100.n
D65
C14
4.7u
R386
10K
100.n
C243
43.p
C297
10u
C10
10u
C9
D32
C266
1.n
Q73
2
INPUT
4
NC1
NC2
5
3
OPUT
Q73
MC78LC30NTR
U32
1
GND
7
SENSEN
8
SENSEP
4
SFB
5
SGND
14
SW
16
TG
13
VIN
6
VOSENSE
11
BG
15
BOOST
1
COSC
9
EX_VCC
12
IN_VCC
3
ITH
10
PGND
2
RUN_SS
VR7
9.1
R357
Bat_GND
100.K
Q34
Q55
C246
100.n
100K
Bat_GND
Bat_GND
Bat_GND
Bat_GND
R369
R368
51.K
R354
510.K
R440
1.M
C282
100.u
Bat_GND
Bat_GND
100.p
C226
100.u
C225
R414
0.
100.n
C92
U22
TC7S14F
GND
3
2
NC
1
4
VCC
5
R412
10K
R402
0.
Q59
Q33
150p
C602
Bat_GND
Bat_GND
C601
150p
1.5n
C600
C599
1.5n
C598
100n
R1414
300K
D30
D29
D28
D27
10K
R893
0.04
R206
R205
0.04
R71
45.3K
R66
75K
C332
10.n
0.
S2A
S2B
Bat_GND
Bat_GND
R632
D1
D2
G1
G2
S1A
S1B
Bat_GND
Bat_GND
Bat_GND
Q87
R371
3.3_Alive
Bat_GND
R370
51.K
51.K
Bat_GND
R1484
0
100n
C620
GND
3
INA
2
INB
1
OUTY
4
VCC
5
Bat_GND
3.3_Alive
TCTSZ32FU
U70
0
R1474
0
R1473
R1469
51K
Bat_GND
R1470
1K
R1396
300
Bat_GND
Q121
R1471
300
C616
Bat_GND
Bat_GND
100n
1.5n
C617
L46
1.2u
R1465
0
R1459
470
2
D83
Bat_GND
SHIELD
SH3
1
4.7u
C591
0
R1401
Bat_GND
15u
L42
R1485
SD_V_Normal
3.3_VCC
5V_PF_
0
Bat_4.5V
Vin
BGND
KeepAlive
5V_PF
5V_PF_
V_Normal