BQ25015 Datasheet, PDF (9/28 Pages) Texas Instruments – SINGLE-CHIP CHARGER AND DC/DC CONVERTER IC FOR PORTABLE APPLICATIONS

www.ti.com
VI(AC)
AC 5
VI(BAT)
VO(REG)
USB 6
VI(ISET)
VI(SET)
bq25015
bq25017
SLUS721A – DECEMBER 2006 – REVISED MARCH 2007
FUNCTIONAL BLOCK DIAGRAM
AC
BAT/OUT
VI(OUT)
16
ISET1
VI(ISET)
+
12
Sense FET
+
AC/USB
Sense FET
EN 4
FPWM 20
DC−DC
Controller
VSS 3
VSS 9
VCC
VSS 18
VI(BAT)
VI(SLP)
VO(REG)
VI(OUT)
Reference
and
Bias
VO(REG)
Deglitch
Thermal
Shutdown
Deglitch
Sleep
Suspend
Recharge
VI(OUT)
Precharge
V(ISET1)
V(ISET1)
V(ISET1)
Taper
Deglitch
Deglitch
Term
Charge
Control,
Timer
and
Display
Logic
17 BAT/OUT
19 SW
VI(FB)
2 FB
AC/USB
CHG ENABLE
500 mA/ 100 mA
500 mA/ 100 mA
USB Charge
15 CE
13 ISET2
14 PG
7 STAT1
8 STAT2
UDG−04072
Submit Documentation Feedback
9