Data Sheet

C
VDD
C
BAT
SDA
SCL
Vpullup (do not pull to gauge VDD)
GPOUT
VSYS
Use copper pours for
battery power path to
minimize IR losses
Place close
to gauge IC.
Trace to pin
and V
SS
should be
short
If battery pack thermistor will not
be connected to BIN pin, a 10-k
pulldown resistor should be
connected to the BIN pin.
The BIN pin should not be shorted
directly to V
DD
or V
SS
.
NFET NFET
Protection
IC
R
THERM
Battery Pack
PACK+
PACK-
TS
Li-Ion
Cell
+
BAT
SRN
SRP
BIN
NC
GPOUT
NC
SDA
VDD
NC
VSS
SCL
Via connects to Power Ground
R
BIN
R
SENSE
Kelvin connect BAT sense
line right at positive
battery terminal. The
leads must be short.
Kelvin connect SRP and
SRN connections right at
Rsense terminals
R
SCL
R
SDA
VDD (should be pulled up to gauge VDD)
There is an internal pull down on
GPOUT
bq27441-G1
www.ti.com SLUSBH1C –NOVEMBER 2013–REVISED DECEMBER 2014
12.2 Layout Example
Figure 10. bq27441-G1 Board Layout
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