bq24010, bq24012, bq24013, bq24014
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SLUS530F − SEPTEMBER 2002 − REVISED AUGUST 2005
FUNCTIONAL DESCRIPTION
The bqTINYt supports a precision Li-Ion, Li-Pol charging system suitable for single-cells . Figure 2 shows a typical charge
profile, application circuit and Figure 5 shows an operational flow chart.
DC +
bq24010DRC
1 IN
0.47
µF
CHARGE
2 VCC
OUT 10
BAT 9
0.1
µF
VCC
BATTERY
PACK
PACK+
+
PACK−
RT1
3 STAT1
TS 8
RT2
DONE
4 STAT2
5 VSS
PG 7
ISET 6
RSET
DC −
POWERGOOD
UDG−02109
Figure 3. Typical Application Circuit
USB PORT
D+
D−
bq24013DRC
PACK+
VBUS
GND
0.47
µF
2
VCC
BAT
9
0.1
µF
PACK−
1
IN
OUT 10
+
BATTERY
PACK
SYSTEM
&
USB
CONTROLLER
3
4
5
STAT1
STAT2
VSS
TTE
CE
ISET
8
7
2.26 kΩ
6
100 mA / 500 mA
9.09 kΩ
SI1032x
UDG−02127
Figure 4. USB Charger Circuit
9
TI [ TEXAS INSTRUMENTS ]
