BQ2145 Datasheet, PDF (4/7 Pages) Texas Instruments – Smart Battery Module with LEDs

bq2145 Preliminary
bq2145 Schematic
1 SEE CHART 1 FOR RESISTOR VALUES.
TP6 ¹
D10
OPTIONAL 6.2V
VCC _R18
TP5 ¹
1
2
3 100
D8
BAV99
Q1
2N7002
1
3
2
1
U2
1
2
3
4
A0
A1
A2
VSS
VCC
WP
SCL
SDA
8
7
6
5
2
24LC01
VCC
2
1
Q2
BSS84ZX ₃
1
R17
100K
2
R16
2
1
330
R3
2
1
330
R14
2
1
330
R2
2
1
330
R15
2
1
330
D1
2
1
COLOR
D2
2
1
COLOR
D3
2
1
COLOR
D4
2
1
COLOR
D5
2
1
COLOR
BAW56
VCC C2
1
1
2
R13
10K
2
R12
10K
1
2
3
4
5
6
7
8
0.1UF
U1
VCC VOUT
SEG1 REF
SEG2 SMBC
SEG3 SMBD
SEG4 CP2
SEG5 SB
CPI DISP
VSS SR
16
15
14
13
12
11
10
9
bq2945
C5 VCC
1
2
0.1UF
SW1
1
2
3
4
DISPLAY
2 _D9
BZX84C6V2
1
R11
1
2
1% ₁
C4
1
2
OPTIONAL
1
1
R5
1%
2
1
TP4
1
C1
0.1UF
2
11
R4
1%
2
R8
1
100
R6
1
100
R9
21
2
100
D7
2
3
1
BAV99
D6
2
23
1
BAV99
TP3 ₁
R10
1
2
1
100K ₁
R7
1
100
2 SMBD
1
BAT-
1
C3
0.1UF
2
R1
0.05
2 3W
PACK-
1
BAT+
1
B+
1
CP2
1
CP1
SMBC
1
C
1
CHART 1
# OF CELLS R5 R11 R4
D
2
301K 86.5K 100K
B-
3
499K 909K 100K
4
698K 909K 100K
6
499K 162K 100K
8
698K 402K 100K
P-
9
806K 604K 100K
10
909K 909K 100K
12
909K 1M 86.5K
4