參數(shù)資料
型號： TPS65800RTQTG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源管理
英文描述： 8-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC56
封裝： 8 X 8 MM, GREEN, PLASTIC, QFN-56
文件頁數(shù)： 89/98頁
文件大?。?/td> 2077K
代理商： TPS65800RTQTG4
www.ti.com
ELECTRICAL CHARACTERISTICS – POWER PATH AND CHARGE MANAGEMENT (Continued)
V(OUT) * 1.2
500 kW
I
O(BAT) +
K
(SET)
V
(SET)
R
SET
I
O(PRECHG) +
V
(PRECHG)
K
(SET)
R
SET
I
(TERM) +
V
(TERM)
K
(SET)
R
SET
SLVS606C – SEPTEMBER 2005 – REVISED FEBRUARY 2007
Over recommended operating conditions (typical values at T
J = 25°C), application circuit as in Figure 3 (unless otherwise
noted).
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
POWER PATH TIMING CHARACTERISTICS, DPPM AND THERMAL LOOPS NOT ACTIVE, RTMR = 50 k
tBOOT
Boot-up time
Measured from input power detection
120
200
300
ms
No USB: measured from V(AC)– V(BAT) < VIN(NDT), USB
tSW(ACBAT)
Switching from AC to BAT
50
detected:CE=LO (after CE hold-off time)
No AC: measured from V(USB)– V(BAT) < VIN(NDT),USB
tSW(USBBAT)
Switching from USB to BAT
50
detected:CE=LO (after CE hold-off time)
s
tSW(PSEL)
Switching from USB to AC
50
Toggling I2C PSEL bit
Switching from AC to USB or USB to
tSW(ACUSB)
AC power removed or USB power removed
100
AC
BATTERY REMOVAL DETECTION
VNOBATID
Battery ID resistor detection
ID resistor not detected at V(OUT)– V(ANLG1) < VNOBATID
0.5
V
Deglitch time for battery removal
tDGL(NOBAT)
0.6
1.2
ms
detection
00, V(OUT): 2.5 V to 4.4 V
Set via I2C bits
A
01
10
(BATID1,BATID2)
IO(ANLG1)
ANLG1 pullup current
ADC_WAIT register
10
50
11
60
Total accuracy
25%
FAST CHARGE CURRENT, V(OUT) > V(BAT) + 0.1 V, V(BAT) > VLOWV
IO(BAT)
Charge current range
100
1500
mA
11, 100% scaling
2.475
2.500
2.525
10, 75% scaling
1.875
1.900
1.925
VSET = V(ISET1),
VSET
Battery charge current set voltage
V
(ISET1_1, ISET1_0) =
01, 50% scaling
1.225
1.250
1.275
00, 25% scaling
0.575
0.600
0.625
100 mA < IO(BAT)≤ 1 A
350
400
450
KSET
Battery charge current set factor
1 mA < IO(BAT)≤ 100 mA
100
400
1000
PRECHARGE CURRENT, V(OUT) > V(BAT) + 0.1 V, VBATSH < V(BAT) < VLOWV, t < t(PRECHG)
IO(PRECHG)
Precharge current range
10
150
mA
VPRECHG
Precharge set voltage
VPRECHG = V(ISET1)
220
250
270
mV
VLOWV
Precharge to fast-charge transition
Fast charge at V(BAT) > VLOWV
2.8
3
3.2
V
Deglitch time for fast charge to
tDGL(PRE)
Decreasing battery voltage, RTMR = 50 k
22.5
ms
precharge transition
CHARGE REGULATION VOLTAGE, V(OUT) > VO(BATREG) + 0.1V
4.2
Voltage options, selection via I2C
V
4.356
VO(BATREG)
Battery charge voltage
Accuracy, TA = 25°C
–0.5%
0.5%
Total accuracy
–1%
1%
CHARGE TERMINATION, V(BAT) > VRCH, VOLTAGE REGULATION MODE SET
ITERM
Charge termination current range
10
150
mA
11, 100% scaling
240
260
280
10, 75% scaling
145
160
175
Battery termination detection set
VTERM = V(ISET1),
VTERM
mV
voltage
(ISET1_1, SET1_0) =
01, 50% scaling
90
110
130
00, 25% scaling
40
60
75
tDGL(TERM)
Deglitch time for termination detection
V(ISET1) < VTERM, RTMR = 50 k
22.5
ms
9
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