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参数资料
| 型号： | LTC4050EMS-4.2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRG CNTRL LI-ION 10MSOP |
| 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： | 4.5 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
LTC4050
Lithium-Ion Linear Battery
Charger with Thermistor Interface
FEATURES
DESCRIPTIO
s
s
s
s
s
s
s
s
s
s
s
s
s
Complete Standalone Linear Charger Controller
for 1-Cell Lithium-Ion Batteries
Thermistor Interface for Battery Temperature
Sensing
Preset Charge Voltage with ± 1% Accuracy
Programmable Charge Current
C/10 Charge Current Detection Output
Programmable Charge Termination Timer
Input Supply (Wall Adapter) Detection Output
4.5V to 10V Input Voltage Range
Automatic Sleep Mode When Input Supply
is Removed (Only 5 μ A Battery Drain)
Automatic Trickle Charging of Low Voltage Cells
Automatic Battery Recharge
Battery Insertion Detection
Space Saving 10-Pin MSOP Package
The LTC ? 4050-4.1/LTC4050-4.2 are complete standalone
constant-current/constant-voltage linear charge control-
lers for lithium-ion (Li-Ion) batteries. Charge current is
programmable and final float voltage has ± 1% accuracy.
When the input supply is removed, the LTC4050 automati-
cally enters a low quiescent current sleep mode, dropping
the battery drain current to 5 μ A. An internal comparator
detects the near-end-of-charge ( C /10) condition while a
programmable timer, using an external capacitor, sets the
total charge time. Fully discharged cells are automatically
trickle charged at 10% of the programmed current until
cell voltage exceeds 2.49V. The thermistor interface
suspends charging if the cell temperature is outside of a
0 ° C to 50 ° C temperature window.
The LTC4050 begins a new charge cycle when a discharged
battery is connected to the charger or when the input power
APPLICATIO S
is applied. In addition, a new charge cycle is automatically
started if the battery remains connected to the charger and
s
s
s
Cellular Phones
Handheld Computers
Charging Docks and Cradles
the cell voltage drops below 3.88V for 4.1V cells or below
3.98V for 4.2V cells.
The LTC4050 is available in the 10-pin MSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Single Cell 4.2V 500mA Li-Ion Battery Charger
Charge Current vs
Thermistor Temperature
8
V IN
6V
MBRM120T3
600
500
V BAT = 3.7V
1k
1k
3
10
4
V CC
SENSE
DRV
CHRG
LTC4050-4.2
ACPR BAT
TIMER
PROG
9
7
1
6
*
0.2 ?
Si9430DY
I BAT = 500mA
1 μ F
400
300
200
100
0.1 μ F
GND
5
NTC
2
19.6k
10 μ F
+ 4.2V
Li-Ion
CELL
10k NTC
T DALE NTHS-1206N02
0
–50 –25 0
25
50
75
100
125
THERMISTOR TEMPERATURE ( ° C)
*SHUTDOWN INVOKED BY FLOATING THE PROG PIN
4050 TA01
4050 TA05
4050f
1
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相关代理商/技术参数 |
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| LTC4052 | 制造商:LINER 制造商全称:Linear Technology 功能描述:150mA Standalone Linear Li-Ion Battery Charger in ThinSOT |
| LTC4052-4.2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Lithium-Ion Battery Pulse Charger with Overcurrent Protection |
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| LTC4052EMS8E-4.2 | 功能描述:IC CHARGER PULSE LI-ION 8-MSOP 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 |
| LTC4052EMS8E-4.2#PBF | 功能描述:IC CHARGER PULSE LI-ION 8-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
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