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参数资料
| 型号： | LTC4053EMSE-4.2 |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER BATTERY USB 10-MSOP |
| 标准包装： | 50 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.25 V ~ 6.5 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）裸露焊盘 |
| 供应商设备封装： | 10-MSOP 裸露焊盘 |
| 包装： | 管件 |
LTC4053-4.2
USB Compatible
Lithium-Ion Battery Charger
with Thermal Regulation
FEATURES
DESCRIPTIO
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■
■
■
■
■
■
■
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Charges Single-Cell Li-Ion Batteries Directly from
USB Port
Thermal Regulation Maximizes Charge Rate
without Risk of Overheating*
Programmable Charge Current with ± 7% Accuracy
Low Dropout Operation
No External MOSFET, Sense Resistor or Blocking
Diode Required
Programmable Charge Termination Timer
Preset Charge Voltage with ± 1% Accuracy
C/10 Charge Current Detection Output
AC Present Logic Output
25 μ A Supply Current in Shutdown Mode
Automatic Recharge
Charge Current Monitor Useful for Gas Gauging
Thermistor Input for Temperature Qualified Charging
The LTC ? 4053 is a standalone linear charger for lithium-
ion batteries that can be powered directly from a USB port.
The IC contains an on-chip power MOSFET and eliminates
the need for an external sense resistor and blocking diode.
Thermal regulation automatically adjusts charge current
to limit die temperature during high power or high ambient
temperature conditions. This feature protects the end
product and the LTC4053 from thermal stress while the IC
charges the battery at maximum rate without interruption.
The charge current and charge time can be set externally
with a single resistor and capacitor, respectively. When
the input supply (wall adapter or USB supply) is removed,
the LTC4053 automatically enters a low current sleep
mode, dropping the battery drain current to less than 5 μ A.
The LTC4053 also includes NTC temperature sensing,
■ Available in 10-pin thermally enhanced MSOP and
low profile (0.75mm) 3mm × 3mm DFN packages
APPLICATIO S
C/10 detection circuitry, AC present logic, low battery
charge conditioning (trickle charging) and shutdown (25 μ A
supply current).
The LTC4053 is available in 10-pin thermally enhanced
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Cellular Telephones
Handheld Computers
Charging Docks and Cradles
MP3 Players
Digital Cameras
MSOP and low profile (0.75mm) DFN packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Protected by U.S. Patents including 6522118, 6700364.
TYPICAL APPLICATIO
Charge Current vs Input Voltage
USB Powered Standalone Li-Ion Charger
600
T A = 25 ° C
USB PORT
4.35V TO 5.5V
2
V CC BAT
LTC4053-4.2
9
+
SYSTEM
LOAD
Li-Ion
BATTERY
500
400
V BAT = 3.95V
V BAT = 4.05 V
R PROG = 3k
4
TIMER
SHDN
8
SUSPEND
300
4.7 μ F
GND NTC PROG
5 6 7
3.74k
USB CONTROL
μ C
200
100
V BAT = 4.15V
0.1 μ F
15k
100mA/
500mA
0
4.0
4.5
5.0
5.5
4053TA01
V CC (V)
4053 G04
4053fa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4054 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
| LTC4054-4.2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT |
| LTC4054ES5-4.2 | 制造商:Linear Technology 功能描述:Constant Current/Voltage Charger Li-Ion 500mA 4.2V 5-Pin TSOT-23 |
| LTC4054ES54.2#PBF | 制造商:Linear Technology 功能描述: |
| LTC4054ES5-4.2#PBF | 制造商:Linear Technology 功能描述:Constant Current/Voltage Charger Li-Ion 500mA 4.2V 5-Pin TSOT-23 制造商:Linear Technology 功能描述:Constant Current/Voltage Charger Li-Ion 500mA 4.2V 5-Pin TSOT-23 Bulk |
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