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| 型號(hào)： | TPS65820RSHTG4 |
| 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： | 7 X 7 MM, GREEN, PLASTIC, QFN-56 |
| 文件頁(yè)數(shù)： | 89/98頁(yè) |
| 文件大小： | 2290K |
| 代理商： | TPS65820RSHTG4 |
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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
www.ti.com .............................................................................................................................................................. SLVS663B – MAY 2006 – REVISED APRIL 2008
Over recommended operating conditions (typical values at TJ = 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
s
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
s
detected: CE = LO (after CE hold-off time)
tSW(PSEL)
Switching from USB to AC
50
s
Toggling I2C PSEL bit
Switching from AC to USB or USB to
tSW(ACUSB)
AC power removed or USB power removed
100
s
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 (BATID1,
A
01
10
BATID2) ADC_WAIT register
IO(ANLG1)
ANLG1 pullup current
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
2.5
2.525
10, 75% scaling
1.875
1.9
1.925
VSET = V(ISET1),
VSET
Battery charge current set voltage
V
(ISET1_1, ISET1_0) =
01, 50% scaling
1.225
1.25
1.275
00, 25% scaling
0.575
0.6
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
V
Voltage options, selection via I2C
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
Copyright 2006–2008, Texas Instruments Incorporated
9
Product Folder Link(s): TPS65820
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