Datasheet

I
INLIM
USB
AC
USBInput
Current
LimitError
Opamp
ACInput
Current
LimitError
Opamp
ACSWITCH
USBSWITCH
I(AC) /K
ILIMIT
I(USB)
I(AC)
I(USB)
I
USB100
I
USB500
DACSWON
DUSBSWON
SYS
VSYS
VAC
VUSB
ISAMPLE
I
USB
I
AC
AVDD6V
I
USB800
I
USB1300
I
AC100
I
AC500
I
AC2500
Short
Detect
I
BAT(SC)
T
J(REG)
T
J
V
DPPM
V
OUT
V
BAT(REG)
V
BAT(SC)
V
RCH
I BAT (DET)
DAC
V
SYS
Supplement
40mV
ISET
BAT
t
DGL(TERM)
Chargecontrol
t
DGL1( LOWV)
t
DGL(RCH)
V
HOT(45)
V
COLD(0)
t
DGL(NO-IN)
t
DGL(PGOOD)
t
BLK(OVP)
V
BAT
+V
IN-DT
V
UVLO
V
OVP
Dynamically
controlled
Oscillator
Fast-chargetimer
Pre-chargetimer
Timerfault
Resettimers
t
DGL(TS)
Timersdisabled
t
DGL2( LOWV)
BAT - SC
TS
V
DIS(TS)
V
LOWV
BAT_sense
ADC0
ADC1
ADC2
ADC3
ADC5
ADC4
I²C
CC13
CC10
RST EN
V
IPRECHG
Sys
V
500
500 W
Vsys(sc1)
SYS-SC1
V
BAT
SYS - SC2
t
DGL(SC2)
250mV
DAC
I²C
I
TERM
I
PRECHG
I²C
V
THRON
I²C
D
THCHG
I²C
I²CEN
I²C
I²C
I²C
I²C
V
ISET
VI CHG
V
IPRECHG
V
ISET
VI CHG
V
AC
/V
USB
I²C
Halftimers
I
AC1300
TPS65070, TPS65072, TPS65073
TPS650731, TPS650732, TPS650701, TPS650702, TPS650721
SLVS950G –JULY 2009–REVISED MAY 2013 www.ti.com
DETAILED DESCRIPTION
BATTERY CHARGER AND POWER PATH
The TPS6507x integrate a Li-ion linear charger and system power path management targeted at space-limited
portable applications. The TPS6507x power the system while simultaneously and independently charging the
battery. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge
termination and enables the system to run with a defective or absent battery pack. It also allows instant system
turn-on even with a totally discharged battery. The input power source for charging the battery and running the
system can be an AC adapter or an USB port. The power-path management feature automatically reduces the
charging current if the system load increases. The power-path architecture also permits the battery to
supplement the system current requirements when the adapter cannot deliver the peak system currents.
Figure 25. Charger Block Diagram
24 Submit Documentation Feedback Copyright © 2009–2013, Texas Instruments Incorporated
Product Folder Links: TPS65070 TPS65072 TPS65073 TPS650731 TPS650732 TPS650701 TPS650702
TPS650721