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参数资料
| 型号： | LTC4081EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | IC USB POWER MANAGER 10-DFN |
| 标准包装： | 121 |
| 功能： | 电源管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 3.75 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
LTC4081
TYPICAL PERFORMANCE CHARACTERISTICS
speci?ed)
(T A = 25°C, V CC = 5V, V BAT = 3.8V, unless otherwise
? C ? H ? R ? G Pin Output
Low Voltage vs Temperature
Normalized Charge Termination
Time vs Temperature
Buck Oscillator Frequency
vs Battery Voltage
80
70
60
50
40
30
I CHRG = 5mA
1.05
1.00
0.95
0.90
2.28
2.27
2.26
2.25
2.24
20
10
0.85
2.23
0
–50
–30
–10
10
30
50
70
90
0.80
–50
–30
–10
10
30
50
70
90
2.22
2.5
3.0
3.5
4.0
4.5
TEMPERATURE ( ° C)
Buck Oscillator Frequency
vs Temperature
4081 G09
TEMPERATURE ( ° C)
Buck Ef?ciency vs Load Current
(V OUT = 1.8V)
4081 G10
BATTERY VOLTAGE (V)
Buck Ef?ciency vs Load Current
(V OUT = 1.5V)
4081 G11
2.4
100
1000
100
1000
2.3
V BAT = 3.8V
V BAT = 4.5V
80
EFFICIENCY
(BURST)
100
80
EFFICIENCY
(BURST)
100
2.2
2.1
V BAT = 2.7V
60
EFFICIENCY
(PWM)
POWER
LOSS
(PWM)
10
60
EFFICIENCY
(PWM)
POWER
LOSS
(PWM)
10
2.0
40
POWER LOSS
(BURST)
1
40
POWER LOSS
(BURST)
1
V BAT = 3.8V
V BAT = 3.8V
1.9
1.8
–60 –40 –20
0
20
40
60
80
100
20
0
0.01
0.1
1
V OUT = 1.8V
L = 10 μ H
C = 4.7 μ F
10 100 1000
0.1
0.01
20
0
0.01
0.1
1
V OUT = 1.5V
L = 10 μ H
C = 4.7 μ F
10 100 1000
0.1
0.01
TEMPERATURE ( ° C)
4081 G12
LOAD CURRENT (mA)
4081 G13
LOAD CURRENT (mA)
4081 G13a
No-Load Buck Input Current
Buck Output Voltage
vs Battery Voltage
Buck Output Voltage
vs Temperature
(Burst Mode Operation)
vs Battery Voltage
1.810
1.805
I OUT = 1mA
V OUT SET FOR 1.8V
Burst Mode
OPERATION
1.810
1.805
I OUT = 1mA
V OUT SET FOR 1.8V
Burst Mode
OPERATION
35
30
I OUT = 1mA
V OUT = 1.8V
L = 10 μ H
1.800
PWM MODE
1.800
PWM MODE
25
20
1.795
1.795
15
1.790
1.785
1.790
1.785
10
5
1.780
2.5
3.0 3.5 4.0
4.5
1.780
–50 –30
–10
10
30
50
70
90
0
2.5
3.0
3.5
4.0
4.5
BATTERY VOLTAGE (V)
4081 G14
TEMPERATURE (?C)
4081 G15
BATTERY VOLTAGE (V)
4081 G16
4081f
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4081EDD-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA Li-Ion Charger with NTC Input and 300mA Synchronous Buck |
| LTC4085 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Battery Charger/USB Power Manager |
| LTC4085-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB Power Manager with Ideal Diode Controller and 4.1V Li-Ion Charger |
| LTC4085-3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB Power Manager with Ideal Diode Controller and 3.95V Li-Ion Charger |
| LTC4085EDE | 制造商:Linear Technology 功能描述:USB Power Manager 14-Pin DFN EP |
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