Datasheet

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11
CELL
17
TOUT
16
XALERT
14
SDATA
10
WDI
13
SCLK
24
OD
22
PACK
18
REG
20
21
8
SR1
12
GND
15
GND
9
SR2
bq29312
U2
R3
100
R4 1 k
0.1 µF C3
R5
1 k
1 kR6
R7 1 k
C4
0.1 µ F
C5
0.1 µ F
C6
0.1 µF
0.1 µFC7
1
2
3
4
5
6
7
8
VC1
VC2
VC3
GND
OUT
VDD
CD
VC4
U1
bq29400
BAV99
D2
2N7002
Q1
JP1
3
3
1
2
F1
6A
2
100 k
R43
1
2N7002
Q2
3
2
1
C12
0.1 µF
BAT54LT1
D3
Q3
BSS84
BAV99
D1
R11
100
R10
100
R9
100
R8
100
R2
100
C1
0.1µF 0.1 µ F 0.1µF 0.1µ F 0.1µF
C2 C8 C9 C10 C11
1µF 50 V
X1
X2
X3
X4
X5
BAT4P
BAT3P
BAT2P
BAT1P
BATIN
VCC
100 k
R45
100 k
R12
BAT
SLEEP
VC1
VC2
VC3
VC4
VC5
PMS
1
19
3
4
5
6
7
23
2
3
DSG ZVCHG CHG
R15
100
R16
100
0.1µF
C16
0.1µF
C18
0.1µ F
C19
1
2
R1
.020 75 PPM
1
1
R20 100
C20
0.1µF
8.45 k
R19
4.7
µF
C17
VCC
R13
5 k
R14
5 k
R17
5 k
BAT54LT1
D4
VCC
R44
100 k
R42 100 k
C21
0.47µ F
R21
61.9 k
RT1
10 k
1
1
C13
0.1µ F
C14
0.1µ F
Si4435DY
Q4
2
1
8
6
5
4 4
8
7
6
5
4
2
3
1
Si4435DY
Q5
R18
1 M
R22
300
1 W
R23
1 M
C22
0.047 µF
Si4435DY
Q6
R27
C24
0.47µF
C25 68 PF
VCC
R28
10
C27
0.47µF
C28
68 PF
1
4
11
19
38
18
12
37
2
6
10
36
25
35
1
4
5
28
27
26 9 13 17
30
29
3
34
33
15
16
32
7
20
21
22
23
24
14
VSSA
VSSD
VDDD VDDA
8 31
VSSD
VSSD
PFIN
SAFE
NC
TS
SCLK
SDATA
NC
EVENT
CLKOUT
VIN
PU
PRES
SR1
SR2
MRST
RBI
NC
DISP
VSSAVSSA
OC
VSSA/XCK1
ROSC/XCK2
SMBC
SMBD
FLT
NC
LED5
LED4
LED3
LED2
LED1
NC
bq2084
U3
R24 5 k
R25 100
C26
0.1µF
3
1
SW1
2
4
VCC
100 k
R29
R34
470
R33
470
R32
470
R31
470
R30
470
VCC
2
1
GREEN
D5
2
1
2
1
2
1
2
1
GREEN
GREEN
GREEN
GREEN
D6
D7
D8
D9
R35
100 k
R37
100
R38
100
R36
61.9 k
C30
2200 pF
C29 150 pF
R41
100
R40 100
D11
AZ23C5V6
SMBC
SMBD
X8
X9
D10
AZ23C5V6
R39 100
Sys Pres
X7
PACK−
X10
4
3
2
1
1 M
7
8
6
5
7
3
2
1
3
R46
1 M1 M
R47
1 M
0.47
µF
bq2084-V143
SLUS732 – SEPTEMBER 2006
APPLICATION INFORMATION (continued)
Figure 7. bq2084-V143 Based Battery Pack Schematic
63
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