參數(shù)資料
型號(hào): TPS65014RGZ
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48
封裝: 7 X 7 MM, GREEN, PLASTIC, VQFN-48
文件頁(yè)數(shù): 9/57頁(yè)
文件大?。?/td> 1289K
代理商: TPS65014RGZ
www.ti.com
APPLICATION INFORMATION
SCL
SDA
VBAT
ISET
PG
AC Adapter
USB port
SCLK
SDAT
TS
VINMAIN
L1
VMAIN
VINCORE
L2
VCORE
VINLDO1
VLDO1
VLDO2
AGND
PGND
INT
AC
USB
BATT
BATT+
TEMP
CHARGER/REG INTERRUPT
CHARGER
POWER GOOD
VCORE 1.5 V
VMAIN 3.3 V
VMAIN
IFLSB
GND/VCC
nPOR
RESET to MPU
VFB_LDO1
LED2
VIB
VCC
RESPWRON
MPU_RESET
PWRFAIL
Battery Fail, Battery Cover
Removed, Over Temp.
TPS65014
GND
SCL
SDA
VBAT
ISET
PG
AC Adapter
USB port
SCLK
SDAT
TS
VINMAIN
L1
VMAIN
VINCORE
L2
VCORE
VINLDO1
VLDO1
VINLDO2
VLDO2
LOW_PWR
AGND
PGND
INT
AC
USB
BATT
BATT+
TEMP
CHARGER/REG INTERRUPT
CHARGER
POWER GOOD
VCORE 1.5 V
VMAIN 3.3 V
DEFCORE
GND
IFLSB
GND/VCC
DEFMAIN
BATT_COVER
PB_ONOFF
nPOR
RESET to MPU
VFB_LDO1
LED2
VIB
VCC
PS_SEQ
GND
HOT_RESET
RESPWRON
MPU_RESET
PWRFAIL
Battery Fail, Battery Cover
Removed, Over Temp.
22
F
X5R
10
F
X5R
10
H
6.2
H
22
F
X5R
1
F
X5R
10 R
2.2
F
X5R
2.2
F
X5R
1
F
X5R
VBAT
1
F
X5R
1
F
X5R
VMAIN
0.1
F
0.1
F
0.1
F
GPIO1
GPIO2
GPIO3
GPIO4
1 MW Each
TPOR
VBAT
TPS65014
SLVS551 – DECEMBER 2004
Figure 25. Typical Application Circuit
The VCORE and VMAIN converter are always enabled in a typical application. The VCORE output voltage can
be disabled or reduced from 1.5 V to a lower, preset voltage under processor control. When the processor enters
the sleep mode, a high signal on the LOW_PWR pin initiates the change.
VCORE typically supplies the digital part of the audio codec. When the processor is in sleep or low power mode,
the audio codec is powered off, so the VCORE voltage can be programmed to lower voltages without a problem.
A typical audio codec (e.g., TI AIC23) consumes about 20-mA to 30-mA current from the VCORE power supply.
17
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