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参数资料
| 型号： | LTC4055EUF-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC USB PWR MNGR BATT CHRGR 16QFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.35 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（4x4） |
| 包装： | 带卷 (TR) |
LTC4055/LTC4055-1
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN1 = V IN2 = 5V, V BAT = 3.5V, HPWR = 5V, WALL = 0V,
R PROG = R CLPROG = 100k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Current Limit
I LIM
Current Limit
R CLPROG = 100k, HPWR = 5V
R CLPROG = 100k, HPWR = 0V
l
l
465
89
490
97
515
105
mA
mA
R ON
ON Resistance V IN to V OUT
HPWR = 5V, 400mA Load
HPWR = 0V, 80mA Load
0.2
0.2
Ω
Ω
V PROG
Programming Pin Voltage
(PROG, CLPROG)
R CLPROG = R PROG = 100k
R CLPROG = R PROG = 50k
l
l
0.98
0.98
1.000
1.000
1.02
1.02
V
V
I SS
Soft-Start Inrush Current
IN or OUT
5
mA/μs
V CLEN
Input Current Limit Enable Threshold
V IN Rising
l
3.5
3.8
4
V
ΔV CLEN
Input Current Limit Enable Threshold
V IN Rising – V IN Falling
125
mV
V ALEN
Automatic Limit Enable Threshold
Voltage
(V IN – V OUT ) V IN Rising
(V IN – V OUT ) V IN Falling
25
–75
50
–50
75
–25
mV
mV
Battery Charger
V FLOAT
Regulated BAT Voltage
(0°C to 85°C) I BAT = 2mA (LTC4055)
I BAT = 2mA (LTC4055)
(0°C to 85°C). I BAT = 2mA (LTC4055-1)
I BAT = 2mA (LTC4055-1)
l
l
4.165
4.158
4.066
4.059
4.200
4.200
4.100
4.100
4.235
4.242
4.134
4.141
V
V
V
V
I BAT
Current Mode Charge Current R PROG = 100k, HPWR = 5V, No Load
R PROG = 100k, HPWR = 0V, No Load
R PROG = 100k, V OUT = 5V, V IN = 0V,
V WALL = 2V
R PROG = 50k, HPWR = 5V, No Load
R PROG = 50k, V OUT = 5V, V IN = 0V,
l
l
l
l
l
445
45
445
900
900
485
80
485
980
980
525
110
525
1060
1060
mA
mA
mA
mA
mA
V WALL = 2V
I BAT(MAX)
Maximum Charge Current (Note 8)
1
A
ΔI B /ΔI O
I TRKL
V TRKL
V CENI
Charge Current Load Dependency ΔI BAT /ΔI OUT , I OUT = 100mA
Trickle-Charge Current V BAT = 2V, R PROG = 100k
Trickle-Charge Threshold Voltage V BAT Rising
Input Charger Enable Threshold
(V IN – V BAT ) High to Low
l
l
0.95
30
2.7
1
45
2.85
70
1.05
60
3
mA/mA
mA
V
mV
Voltage
(V IN – V BAT ) Low to High
80
mV
V CENO
Output Charger Enable Threshold
Voltage
(V OUT – V BAT ) High to Low
(V OUT – V BAT ) Low to High
70
80
mV
mV
V UVCL
V RECHRG
Input/Output Undervoltage Current Limit I BAT = I CHG /2
Recharge Battery Threshold Voltage V FLOAT – V RECHRG
l
l
4.23
65
4.3
100
4.37
135
V
mV
t TIMER
T LIM
TIMER Accuracy C TIMER = 0.1μF
Recharge Time Percent of Total Charge Time
Low Battery Trickle-Charge Time Percent of Total Charge Time, V BAT < 2.8V
Junction Temperature in Constant
±10
50
25
105
%
%
%
°C
Temperature Mode
Ideal Diode
R FWD
R DIO,ON
On Resistance, V ON Regulation
On Resistance V BAT to V OUT
V BAT = 3.5V, 100mA Load
V BAT = 3.5V, 600mA Load
0.1
0.2
Ω
Ω
V FWD
Voltage Forward Drop (V BAT – V OUT )
V BAT = 3.5V, 5mA Load
l
10
30
50
mV
V BAT = 3.5V, 100mA Load
V BAT = 3.5V, 600mA
55
120
mV
mV
V OFF
I FWD
Diode Disable Battery Voltage
Load Current Limit for V ON Regulation
V BAT Falling
V IN = 3.5V
2.8
550
V
mA
I MAX
Diode Current Limit
V BAT = 3.5V, V OUT = 2.8V, Pulsed with
1.4
1.8
2.2
A
10% Duty Cycle
4055fb
3
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| LTC4056ETS8-4.2#TR | 功能描述:IC CHARGR BATTERY L-ION TSOT23-8 RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 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:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4056ETS8-4.2#TRM | 功能描述:IC CHARGR BATTERY L-ION TSOT23-8 RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 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:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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