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参数资料
| 型号： | LTC4075EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARG BATT LI-ON USB 10DFN |
| 标准包装： | 121 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.3 V ~ 8 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) |
LTC4075/LTC4075X
Dual Input USB/AC
Adapter Standalone Li-Ion
Battery Chargers
FEATURES
DESCRIPTIO
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Charges Single-Cell Li-Ion Batteries from Wall
Adapter and USB Inputs
Automatic Input Power Detection and Selection
Charge Current Programmable up to 950mA from
Wall Adapter Input
No External MOSFET, Sense Resistor or Blocking
Diode Needed
Thermal Regulation Maximizes Charging Rate
Without Risk of Overheating*
Preset Charge Voltage with ±0.6% Accuracy
Programmable Charge Current Termination
18μA USB Suspend Current in Shutdown
Independent “Power Present” Status Outputs
Charge Status Output
Automatic Recharge
Available Without Trickle Charge (LTC4075X)
Available in a Thermally Enhanced, Low Pro?le
(0.75mm) 10-Lead (3mm × 3mm) DFN Package
The LTC ? 4075/LTC4075X are standalone linear chargers
that are capable of charging a single-cell Li-Ion battery
from both wall adapter and USB inputs. The chargers can
detect power at the inputs and automatically select the
appropriate power source for charging.
No external sense resistor or blocking diode is required
for charging due to the internal MOSFET architecture.
Internal thermal feedback regulates the battery charge
current to maintain a constant die temperature during high
power operation or high ambient temperature conditions.
The ?oat voltage is ?xed at 4.2V and the charge current
is programmed with an external resistor. The LTC4075
terminates the charge cycle when the charge current drops
below the programmed termination threshold after the
?nal ?oat voltage is reached. With power applied to both
inputs, the LTC4075/LTC4075X can be put into shutdown
mode reducing the DCIN supply current to 20μA, the USBIN
supply current to 10μA, and the battery drain current to
less than 2μA.
APPLICATIO S
Other features include automatic recharge, undervoltage
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Cellular Telephones
Handheld Computers
Portable MP3 Players
Digital Cameras
lockout, charge status outputs, and “power present”
status outputs to indicate the presence of wall adapter
or USB power.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*Protected by U.S. patents, including 6522118, 6700364
TYPICAL APPLICATIO
Dual Input Battery Charger for Single-Cell Li-Ion
Complete Charge Cycle (1100mAh Battery)
1000
800
600
400
WALL
ADAPTER
LTC4075
DCIN
BAT
800mA (WALL)
500mA (USB)
200
0
4.2
4.0
CONSTANT VOLTAGE
USB
PORT
1 μ F
1 μ F
2k
1% 1.24k
1%
USBIN
IUSB
IDC ITERM
GND
2k
1%
+
4.2V
SINGLE CELL
Li-Ion BATTERY
3.8
3.6
3.4
5.0
2.5
0
USBIN = 5V
T A = 25 ° C
R IDC = 1.25k
R IUSB = 2k
4075 TA01
–2.5
0
0.5
1.0
1.5
2.0
2.5
3.0
TIME (HR)
4075 TA01b
4075Xfa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4075HVX | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage Dual Input Li-Ion/Polymer Battery Charger |
| LTC4075HVXEDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage Dual Input Li-Ion/Polymer Battery Charger |
| LTC4075HVXEDD#PBF | 功能描述:IC CHARGER LI-ION 10-DFN RoHS:是 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 |
| LTC4075HVXEDD#PBF | 制造商:Linear Technology 功能描述:BATT CHARGER LI ON DUAL 10DFN 制造商:Linear Technology 功能描述:BATT CHARGER, LI ON, DUAL, 10DFN |
| LTC4075HVXEDD#TRPBF | 功能描述:IC CHARGER LI-ION 10-DFN RoHS:是 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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