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參數(shù)資料
| 型號： | ADP3808 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | High Efficiency Switch Mode Li-Ion Battery Charger |
| 中文描述： | 高效率開關(guān)模式鋰離子電池充電器 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大小： | 315K |
| 代理商： | ADP3808 |
ADP3808
SPECIFICATIONS
V
CC
= 20 V, EN = 5 V, REFIN = 3 V, T
A
= 0°C to 100°C, unless otherwise noted.
1
Rev. 0 | Page 3 of 16
Table 1.
Parameter
BATTERY VOLTAGE SENSING
Accuracy
Symbol
Δ
V
BAT
Conditions
T
A
= 25°C, 13 V ≤ V
CC
≤ 21 V,
BATADJ = 0 V or BATADJ = REFIN
5°C ≤ T
A
≤ 55°C, 13 V ≤ V
CC
≤ 21 V,
BATADJ = 0 V or BATADJ = REFIN
13 V ≤ V
CC
≤ 21 V,
BATADJ = 0 V or BATADJ = REFIN
EN = 0 V
V
BAT(OV)
to COMP < 1 V
BATADJ = 0 V, CELLSEL = 3.3 V
BATADJ = REFIN, CELLSEL = 3.3 V
BATADJ = 0 V, CELLSEL = 0 V
BATADJ = REFIN, CELLSEL = 0 V
CSADJ = REFIN, 3.9 V ≤ V
CS(CM)
≤ 21 V
CSADJ = 0.2 × REFIN, 3.9 V ≤ V
CS(CM)
≤ 21 V
Min
0.4
Typ
Max
+0.4
Unit
%
0.6
+0.6
%
0.8
+0.8
%
Input Resistance
Shutdown Leakage Current
Overvoltage Threshold
Overvoltage Response Time
BATTERY VOLTAGE ADJUST
BATADJ Input Range
REFIN Input Range
3-Cell Voltage Low
3-Cell Voltage High
4-Cell Voltage Low
4-Cell Voltage High
BATTERY CURRENT SENSE AMPLIFIER
Accuracy
2
Input Common Mode Range
Input Bias Current—Operating
Input Bias Current—Shutdown
Input Bias Current—CSM
Gain
CSADJ Bias Current
Overcurrent Threshold
2
Overcurrent Response Time
DRVL Shutdown Threshold
SYSTEM CURRENT SENSE AMPLIFIER
Input Common Mode Range
Input Bias Current, SYSP
Input Bias Current, SYSM
Voltage Gain
ISYS Output Current
LIMIT Threshold
LIMSET Input Range
LIMIT Output Voltage Low
LIMIT Propagation Delay Time
EXTPWR Current Threshold
EXTPWR Voltage Threshold
EXTPWR Output Voltage Low
EXTPWR Propagation Delay Time
R
BAT
I
BAT(SD)
V
BAT(OV)
t
BAT(OV)
V
BATADJ
V
REFIN
V
BAT
V
BAT
V
BAT
V
BAT
V
CM(CS)
I
B(CSP)
I
B(CSP,SD)
I
B(CSM)
A
V(CS)
I
B(CSADJ)
V
CS(OC)
t
DC
V
CS(DRVLSD)
V
CM(SYS)
I
B(SYSP)
I
B( SYSM)
V
TH(LIMIT)
V
LIMSET
V
OL(LIMIT)
t
pdl(LIMIT)
V
120
0
2.0
8
20
0
90
10
49.5
48
0
17.5
170
0.2
135
1
12.0
13.5
16.0
18.0
40
0.1
0.1
31.25
1
100
1
32
300
0.1
50
5
53
30
1
22.5
1.0
REFIN
3.5
+8
+30
V
CC
1
2
2
110
22
400
1
51.5
58
3.5
75
27.5
kΩ
μA
%
μs
V
V
V
V
V
%
%
V
μA
μA
μA
V/V
μA
mV
μs
mV
V
μA
μA
V/V
μA
mV
V
mV
μs
mV
EN = 0 V
V
OC
> 130 mV to COMP < 1 V
SYSP and SYSM to AGND
V
SYS(CM)
= 19 V
V
SYS(CM)
= 19 V
V
ISYS
/(V
SYSP
V
SYSM
)
V
ISYS
= 2.5 V
SYSP to SYSM, LIMSET = 2.5 V
I
LIMIT
= 100 μA
(SYSP) – (SYSM) rising > 55 mV to LIMIT going low
SYSP to SYSM
)
EXTPWR
TH(
)
EXTPWR
TH(
V
SYSP to AGND
18.0
18.25
18.5
V
)
EXTPWR
TH(
V
t
EXTPWR
I
SYSP Rising > 18.5 V to EXTPWR going low
= 100 μA
5
50
mV
)
EXTPWR
dpl(
1
μs
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