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Circuit Module Physical Layouts
4.2 Schematic
Figure 4-7
shows the schematic for this EVM.
2
BAT +
1
2
BAT -
3
PACK -
TB3
AGND
GND
D9 QTLP610C-7 RED
LED9
D10 QTLP610C-7 RED
LED8
D11 QTLP610C-7 RED
LED7
D12 QTLP610C-3 YEL
LED6
D13 QTLP610C-3 YEL
LED5
D14 QTLP610C-3 YEL
LED4
D15 QTLP610C-4 GRN
LED3
D16 QTLP610C-4 GRN
LED2
D17 QTLP610C-4 GRN
LED1
D6
QTLP610C-4 GRN
LED0
Optional for additional power saving
1
Adjust for minimum current consumption in the application
2
I2C pullups normally implemented in the host. Duplicated here since EV2300 does not provide
3
Optimize for required LED power dissipation
4
20
bq34z100EVM Wide Range Impedance Track™ Enabled Battery Fuel Gauge Solution
R2
R4
Q4
1
1
100K
165K
BSS138
J2
1
2
Q5
16V
1
3
BSS84
4
32V
R1
R26
R27
5
6
48V
300K .1%
300K .1%
300K .1%
C9
3300 pF
TP1
TP2
AGND
Vscale Hi
Vscale Lo
D7 BZT52C5V6S-7
27K
R3
R41 27K
GND
Q3
2N7002
R39
47
C2
SW1
4
Q8
J5
LED Display
2N7002
0.1uF
R40
1
<= 5 V
2
AGND
47
REGIN
3
<= 5 V
4
5
> 5 V
6
7
R28
16.5K .1%
> 5 V
8
AGND
100
R5
R6
100
U3
SN74HC164PW
C3
0.1uF
1
14
P1
A
VCC
2
13
B
QH
R8
1.5K
3
12
QA
QG
R9
1.5K
4
11
QB
QF
R10
1.5K
5
10
QC
QE
R11
1.5K
6
9
QD
~CLR
7
8
GND
CLK
GND
R12
1.5K
R18
1.5K
R20
1.5K
R22
1.5K
U1
SN74HC164PW
C4
0.1uF
1
14
A
VCC
2
13
B
QH
TP8
R23
1.5K
3
12
TP7
QA
QG
R24
1.5K
4
11
TP6
QB
QF
5
10
TP3
QC
QE
TP5
TP4
6
9
QD
~CLR
7
8
GND
CLK
GND
Figure 4-7. bq34z100EVM-003 Schematic
Copyright © 2021 Texas Instruments Incorporated
GND
REGIN
R29
3
10k
P3
P4
U2
BQ34Z1X0 PW
1
14
P2
P2
P3/SDA
2
13
VEN
P4/SCL
3
12
P1
P1
P5/HDQ
4
11
BAT
P6/TS
RT1
5
10
CE
SRN
10K
6
9
REGIN
SRP
GND
7
8
REG25
VSS
R21
220K
2SK3019
Q7
R38
C8
1uF
1k
AGND
R7
2M
Q6
REG25
2SK3019
C1
1uF
C5
0.1uF
C7
0.1uF
GND
C6
0.1uF
J1
REGIN
R15
R16
1.5K
1.5K
Open for I2C
GND
D8
D3
LED A
LED B
LED C
Q1
Q2
2SK3019
2SK3019
GND
GND
GND
R32
R33
1M
1M
GND
GND
P2
R35
R36
4
100
100
3
2
R37
R34
1
100
R31
100
10k
D1
GND
AZ23C5V6-7
R14
GND
R13
4
100
100
3
REG25
2
1
D2
AZ23C5V6-7
GND
P2
GND
R25
200
J3
GND
ALERT CONFIGURATION
A
B
C
D
R17
R19
1.5K
1.5K
D4
D5
LED D
LED CONFIGURATION OPTIONS
J6
Fiducial Marks
1
2
D
P4
3
4
C
P3
5
6
P2
B
7
8
A
P1
9
10
REGIN
EXT
SLUU904B – APRIL 2012 – REVISED APRIL 2021
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SDA
SCL
GND
J7
HDQ
GND
J4
1
ALERT
2
3
GND
TB1
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