参数资料
型号: TPS65070TRSLRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 电源管理
英文描述: POWER SUPPLY SUPPORT CKT, PQCC48
封装: 6 X 6 MM, 0.4 MM PITCH, PLASTIC, QFN-48
文件页数: 3/90页
文件大小: 1375K
代理商: TPS65070TRSLRQ1
www.ti.com
SLVSAP7 – JANUARY 2011
POWER PATH (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TDGL(DT)
Power detected deglitch
AC or USB voltage increasing
22.5
ms
VIN(OVP)
Input over voltage detection threshold
5.8
6
6.3
V
POWER PATH TIMING
TSW(ACBAT)
Switching from AC to BAT
No USB, AC power removed
200
ms
SW(USBBAT)
T Switching from USB to BAT
No AC, USB power removed
200
ms
TSW(PSEL)
Switching from USB to AC
I2C
150
ms
TSW(ACUSB)
Switching from AC/ USB, USB / AC
AC power removed or USB power removed
200
ms
Measured from power applied to start of
TSYSOK
SYS power up delay
11
ms
power-up sequence
POWER PATH INTEGRATED MOSFETS CHARACTERISTICS
AC Input switch dropout voltage
(ILIMITAC set = 2.5 A I(SYS) = 1 A)
150
mV
ILIMITUSB = 1300 mA I(SYS) = 500 mA
100
USB input switch dropout voltage
mV
ILIMITUSB = 1300 mA I(SYS) = 800 mA
160
Battery switch dropout voltage
V(BAT) = 3.0 V, I(BAT) = 1 A
85
100
mV
Input Current Limit
IUSB100
Input current limit; USB pin
USB input current [0,0]
90
100
mA
IUSB500
Input current limit; USB pin
USB input current [0,1] (default)
450
500
mA
IUSB800
Input current limit; USB pin
USB input current [1,0]
700
800
mA
IUSB1300
Input current limit; USB pin
USB input current [1,1]
1000
1300
mA
IAC100
Input current limit; AC pin
AC input current [0,0]
90
100
mA
IAC500
Input current limit; AC pin
AC input current [0,1]
450
500
mA
IA1300
Input current limit; AC pin
AC input current [1,0]
1000
1300
mA
IAC2500
Input current limit; AC pin
AC input current [1,1] (default)
2000
2500
mA
POWER PATH SUPPLEMENT DETECTION PROTECTION AND RECOVERY FUNCTIONS
VOUT ≤ VBAT
VBSUP1
Enter battery supplement mode
AC input current set to 10: 1.3A
45 mV
VOUT ≥ VBAT
VBSUP2
Exit battery supplement mode
35 mV
All power path switches set to OFF if V VSYS <
VSYS(SC1)
Sys short-circuit detection threshold, power-on
1.4
1.8
2.0
V
VSYS(SC1)
Short circuit detection threshold hysteresis
50
mV
Internal resistor connected from AC to SYS;
RFLT(AC)
Sys Short circuit recovery pull-up resistors
500
Specified by design
Internal resistor connected from USB to SYS;
RFLT(USB)
Sys Short circuit recovery pull-up resistors
500
Specified by design
Output short-circuit detection threshold, supplement
VSYS(SC2)
200
250
300
mV
mode VBAT – VSYS > VO(SC2) indicates short-circuit
tDGL(SC2)
Deglitch time, supplement mode short circuit
120
ms
tREC(SC2)
Recovery time, supplement mode short circuit
60
ms
VBAT(SC)
BAT pin short-circuit detection threshold
1.4
1.8
2.0
V
IBAT(SC)
Source current for BAT pin short-circuit detection
4
7.5
11
mA
DPPM LOOP(1)
Threshold at which DPPM loop is enabled. This is
3.5
Set with Bits
the approximate voltage at SYS pin, when the USB
3.75
VDPM
<PowerPath DPPM threshold1>;
V
or AC switch reaches current limit and the charging
4.25
<PowerPath DPPM threshold0>
current is reduced; Selectable by I2C
4.50
(1)
If the DPPM threshold is lower than the battery voltage, supplement mode will be engaged first and the SYS voltage will chatter around
the battery voltage; during that condition no DPPM mode is available.
Copyright 2011, Texas Instruments Incorporated
11
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