Datasheet

V
SS
5
STAT2
4
STAT1
3
GND
2
IN
1
6 7 8 9 10
ISET
PG
CE
GND
OUT
bq24080
V
SS
5
STAT2
4
STAT1
3
GND
2
IN
1
6 7 8 9 10
ISET
TE
TS
GND
OUT
bq24081
P0051-01
bq24080
bq24081
www.ti.com SLUS698E –MARCH 2006– REVISED AUGUST 2011
PIN ASSIGNMENT
DRC PACKAGE
(TOP VIEW)
PIN FUNCTIONS
PIN
NO. I/O DESCRIPTION
NAME
bq24080 bq24081
CE 9 – I Charge enable input (active-low)
GND 2, 7 2, 7 – Ground
IN 1 1 I Adapter dc voltage. Connect minimum 0.1-μF capacitor to V
SS
.
Charge current. External resistor to V
SS
sets precharge and fast-charge current, and also the
ISET 6 6 I
termination current value. Can be used to monitor the charge current.
OUT 10 10 O Charge current output. Connect minimum 0.1-μF capacitor to V
SS
.
PG 8 – O Power-good status output (open-drain)
STAT1 3 3 O
Charge status outputs (open-drain)
STAT2 4 4 O
TE – 8 I Timer-enable input (active-low)
TS – 9 I/O Temperature sense; connect to NTC in battery pack.
V
SS
5 5 – Ground
There is an internal electrical connection between the exposed thermal pad and the VSS pin of the
Thermal device. The exposed thermal pad must be connected to the same potential as the V
SS
pin on the
– – –
pad printed-circuit board. Do not use the thermal pad as the primary ground input for the device.
The V
SS
pin must be connected to ground at all times.
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