參數(shù)資料
型號： TPS650732TRSLRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PQCC48
封裝： 6 X 6 MM, 0.4 MM PITCH, GREEN, PLASTIC, QFN-48
文件頁數(shù)： 17/90頁
文件大?。?/td> 1375K
代理商： TPS650732TRSLRQ1
I
INLIM
USB
AC
USBInput
Current
LimitError
Opamp
ACInput
Current
LimitError
Opamp
ACSWITCH
USBSWITCH
I(AC) /K
ILIMIT
I(USB)
I(AC)
I(USB)
I
USB100
I
USB500
DACSWON
DUSBSWON
SYS
VSYS
VAC
VUSB
ISAMPLE
IUSB
I
AC
AVDD6V
I
USB800
I
USB1300
I
AC100
I
AC500
I
AC2500
Short
Detect
IBAT(SC)
T J(REG)
TJ
V DPPM
V OUT
V BAT(REG)
V BAT(SC)
VRCH
I BAT (DET)
DAC
VSYS
Supplement
40mV
ISET
BAT
t DGL(TERM)
Chargecontrol
t DGL
1
(
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-chargetimer
Pre-chargetimer
Timerfault
Resettimers
t DGL(TS)
Timersdisabled
t DGL
2
(
LOWV
)
BAT - SC
TS
V DIS(TS)
V LOWV
BAT_sense
ADC0
ADC1
ADC2
ADC3
ADC5
ADC4
IC
CC13
CC10
RST
EN
V IPRECHG
Sys
V
500
500 W
Vsys(sc1)
SYS-SC1
V BAT
SYS - SC2
t DGL(SC2)
250mV
DAC
IC
I
TERM
I
PRECHG
IC
V
THRON
IC
D
THCHG
IC
ICEN
IC
V ISET
VI CHG
V IPRECHG
V ISET
VI CHG
VAC /V
USB
IC
Halftimers
I
AC1300
SLVSAP7 – JANUARY 2011
www.ti.com
DETAILED DESCRIPTION
BATTERY CHARGER AND POWER PATH
The integrate a Li-ion linear charger and system power path management targeted at space-limited portable
applications. The 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
Copyright 2011, Texas Instruments Incorporated
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