Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- TYPICAL APPLICATION
- ABSOLUTE MAXIMUM RATINGS
- RECOMMENDED OPERATING CONDITIONS
- DISSIPATION RATINGS
- ELECTRICAL CHARACTERISTICS
- TYPICAL OPERATING CHARACTERISTICS
- DEVICE INFORMATION
- FUNCTIONAL DESCRIPTIONS
- BATTERY CHARGER
- Autononous Power Source Selection
- Battery Pre-Conditioning
- Battery Charge Current
- Battery Voltage Regulation
- Charge Taper Detection, Termination and Regharge
- Sleep Mode for Charger
- Operation Modes
- Status Outputs
- PG Output (Power Good)
- CE Input (Charge Enable)
- Thermal Shutdown and Protection
- TImer Fault Recovery
- DC-DC CONVERTER
- BATTERY CHARGER
- APPLICATION INFORMATION
- ADJUSTABLE OUTPUT VOLTAGE VERSION (bq25015)
- FIXED OUTPUT VOLTAGE VERSION (bq25017)
- INPUT CAPACITOR SELECTION
- CHARGER OUTPUT CAPACITOR (DC-DC CONVERTER INPUT CAPACITOR) SELECTION
- DC-DC CONVERTER OUTPUT CAPACITOR SELECTION
- DC-DC CONVERTER OUTPUT INDUCTOR SELECTION
- CHARGING WHILE UNDER LOAD
- THERMAL CONSIDERATIONS
- PCB LAYOUT CONSIDERATIONS
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5AC
6USB
+
+
16
BAT/OUT
12
ISET1
13 ISET2
Charge
Control,
Timer
and
Display
Logic
Thermal
Shutdown
Precharge
Recharge
Taper
CHGENABLE
14 PG
7 STAT1
8 STAT2
Term
VI(SET)
VO(REG)
VI(BAT)
VI(ISET)
AC/USB
AC
SenseFET
VI(OUT)
VI(ISET)
SenseFET
SleepVI(BAT)
VI(SLP)
VI(OUT)
VI(OUT)
V(ISET1)
V(ISET1)
V(ISET1)
VO(REG)
9VSS
VI(AC)
500mA/100mA
USBCharge
AC/USB
500mA/100mA
Reference
and
Bias
Deglitch
Deglitch
Deglitch
Suspend
Deglitch
15 CE
VO(REG)
2 FB
VI(FB)
DC−DC
Controller
VCC
4EN
20FPWM
19 SW
17 BAT/OUT
3VSS
18VSS
UDG−04072
bq25015
bq25017
SLUS721A – DECEMBER 2006 – REVISED MARCH 2007
FUNCTIONAL BLOCK DIAGRAM
9
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