參數(shù)資料
型號： TPS65950ZXNT
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝： 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數(shù)： 20/167頁
文件大小： 2566K
代理商： TPS65950ZXNT
Mainchargeprecharge
andVCCspowerpaths
VAC
ICTLAC1
PCHGAC
VCCS
VBATS
GND
Battery
pack
Charger
device
VBAT
ADIN 1
ADIN 0
VBUS
VCCs
Power
ICTLAC2
USB
driver
ICTLUSB1
ICTLUSB2
PCHGUSB
VPRECH
RLIMITAC
RLIMITUSB
Rs
CCV
VAC
ICTLAC 1
VCCS
VBATS
GND
Battery
pack
Charger
device
VBAT
ADIN 1
ADIN 0
VBUS
VCCs
ICTLAC2
USB
driver
ICTLUSB1
ICTLUSB2
PCHGUSB
VPRECH
PCHGAC
RLIMITAC
VBUS
ICTLUSB 1
VCCS
VBATS
GND
Battery
pack
USB
driver
VBAT
ADIN 1
ADIN 0
VAC
VCCs
ICTLUSB2
Charger
device
ICTLAC1
ICTLAC2
PCHGAC
VPRECH
PCHGUSB
Rs
RLIMITUSB
VAC
ICTLAC 1
VCCS
VBUS
Power
ICTLAC 2
ICTLUSB 1
ICTLUSB 2
PCHGUSB
VPRECH
PCHGAC
Rs
RLIMITAC
Maincharge
prechargeand
VCCspower
paths
(A)
(D)
(C)
(B)
CCOMP
AC
RSCOMP
AC
IDresistor
Thermistor
CPRECH
T
AC
TUSB
CCOMPUSB
RSCOMPUSB
CCOMPUSB
RSCOMPUSB
IDresistor
Thermistor
CCV
Mainchargeprecharge
andVCCspowerpaths
Power
Rs
CPRECH
T
AC
TUSB
CPRECH
Charger
device
USB
driver
Mainchargeprecharge
andVCCspowerpaths
Power
CCV
Battery
pack
IDresistor
Thermistor
IDresistor
Thermistor
GND
ADIN 1
ADIN 0
VBATS
VBAT
VCCs
CCOMPUSB
RSCOMPUSB
T
AC
CPRECH
032-055
8.2.2
In-Rush Current Limitation Schematic
TPS65950
Integrated Power Management/Audio Codec
SWCS032 – OCTOBER 2008
www.ti.com
Ac constant voltage mode supported (see Figure 8-1A and Figure 8-1B)
Ac charger with current nonlimited (see Figure 8-1D)
A.
Schematic that supports ac charge, ac constant voltage mode, and USB charge. With this ac compensation
schematic, constant voltage mode is possible, but only current limited chargers are supported.
B.
Schematic that supports only ac charge and ac constant voltage mode. With this ac compensation schematic,
constant voltage mode is possible, but only current limited chargers are supported.
C.
Schematic that supports only USB charge.
D.
Schematic that supports only ac charge. With this ac compensation schematic, constant voltage mode is not possible,
but current nonlimited chargers are supported.
Figure 8-1. Typical Application Schematics
NOTE
For the component values, see Table 15-1.
With the typical application schematic supporting constant voltage mode (Figure 8-1 A and B), battery
in-rush current is limited by the charging device. The application schematic can be enhanced to support
in-rush current at the charging device plug to maximum 850 mA as detailed by Figure 8-2. T3, R3, and C3
are connected between VAC and ICTLAC1 and intentionally bring in-rush cucation. The described
enhancement is not required for Figure 8-1 D, where constant voltage mode is not supported.
Figure 8-2 shows a typical application schematic with in-rush current limitation.
Battery Interface
116
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