参数资料
型号: LTC4098EUDC#PBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20
封装: 4 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件页数: 29/32页
文件大小: 443K
代理商: LTC4098EUDC#PBF
LTC4098/LTC4098-1
6
40981fc
Battery Charge Current
vs Temperature
Normalized Battery Charger Float
Voltage vs Temperature
VOUT Voltage vs VOUT Current
in Suspend
VBUS Current vs VOUT Current
in Suspend
Automatic Battery Charge
Current Reduction
OUTPUT CURRENT (mA)
0
OUTPUT
VOL
TAGE
(V)
4.0
4.5
5.0
2
40981 G14
3.5
3.0
2.5
0.5
1
1.5
2.5
SUSPEND HIGH
SUSPEND LOW
VBUS = 5V
BAT = 3.3V
RCLPROG = 3.01k
OUTPUT CURRENT (mA)
0
V BUS
CURRENT
(mA) 1.5
2.0
2.5
2
40981 G15
1.0
0.5
0
0.5
1
1.5
2.5
SUSPEND HIGH
SUSPEND LOW
VBUS = 5V
BAT = 3.3V
RCLPROG = 3.01k
TEMPERATURE (°C)
–40
0
CHARGE
CURRENT
(mA)
100
200
300
400
040
80
120
40981 G17
500
600
–20
20
60
100
THERMAL REGULATION
RPROG = 2k
TEMPERATURE (°C)
–40
NORMALIZED
FLOA
T
VOL
TAGE
60
40981 G18
0.997
–15
10
35
85
1.003
1.002
1.001
1.000
0.999
0.998
VOUT (V)
0
%
PROGRAMMED
CHARGE
CURRENT
20
40
60
80
100
120
3.2
3.3
3.4
3.5
40981 G16
3.6
Battery Charging Efficiency vs
Battery Voltage with No External
Load (PBAT/PVBUS)
VBUS Current vs VBUS Voltage
(Suspend)
BATTERY VOLTAGE (V)
2.7
EFFICIENCY
(%)
80
90
3.9
40981 G12
70
60
3.0
3.3
3.6
4.2
100
RCLPROG = 3.01k
RPROG = 1k
IVOUT = 0mA
LTC4098
1x CHARGING
EFFICIENCY
5x CHARGING
EFFICIENCY
VBUS VOLTAGE (V)
1
V BUS
CURRENT
(μA)
30
40
50
5
40981 G13
20
10
0
2
3
4
6
BAT = 3.8V
IVOUT = 0mA
TA = 25°C unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS
PowerPath Switching Regulator
Efficiency vs Output Current
Battery Drain Current
vs Battery Voltage
BATTERY VOLTAGE (V)
2.7
0
BA
TTER
Y
CURRENT
(μA)
5
10
15
20
25
30
3.0
3.3
3.6
3.9
40981 G10
4.2
VBUS = 0V
VBUS = 5V
(SUSPEND MODE)
IVOUT = 0μA
OUTPUT CURRENT (A)
0.01
40
EFFICIENCY
(%)
50
60
70
80
100
0.1
1
40981 G11
90
5x, 10x MODE
1x MODE
BAT = 3.8V
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