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参数资料
| 型号： | LTC4097EDDB#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION/POLY 12-DFN |
| 标准包装： | 1 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4.25 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 供应商设备封装： | 12-DFN-EP（3x2） |
| 包装： | 标准包装 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
| 其它名称： | LTC4097EDDB#TRMPBFDKR |
LTC4097
USB/Wall Adapter
Standalone Li-Ion/Polymer
Battery Charger
FEATURES
DESCRIPTION
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Charges Single-Cell Li-Ion/Polymer Battery from
Wall Adapter and USB Inputs
Automatic Input Detection (Wall Adapter Input has
Charging Priority)
Charge Current Programmable up to 1.2A from
Wall Adapter Input
Programmable Charge Current Termination
NTC Thermistor Input for Temperature Quali?ed
Charging
Independent DC, USB Charge Current Programming
Preset Float Voltage with ±0.6% Accuracy
Thermal Regulation Maximizes Charge Rate Without
Risk of Overheating*
Charge Status Output
Automatic Recharge
20μA Charger Quiescent Current in Shutdown
Available in a Thermally Enhanced, Low Pro?le
The LTC ? 4097 is a standalone linear battery charger that
is capable of charging a single-cell Li-Ion or Li-Polymer
battery from both wall adapter and USB inputs. The charger
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 LTC4097
terminates the charge cycle when the charge current drops
below the user programmed termination threshold after
the ?nal ?oat voltage is reached. The LTC4097 can be put
into shutdown mode reducing the DCIN supply current to
20μA, the USBIN supply current to 10μA, and the battery
(0.75mm) 12-Lead (3mm × 2mm) DFN Package
APPLICATIONS
drain current to less than 2μA even with power applied
to both inputs.
Other features include trickle charge, automatic recharge,
undervoltage lockout, charge status output, an NTC therm-
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Cellular Telephones
MP3 Players
Portable Handheld Devices
istor input used to monitor battery temperature and VNTC
power present output with 120mA drive capability.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
*Protected by U.S. Patents including 6522118.
TYPICAL APPLICATION
Dual Input Battery Charger for Single-Cell Li-Ion Battery
Complete Charge Cycle (1100mAh Battery)
1000
WALL
LTC4097
BAT
800mA (WALL)
100mA/500mA (USB)
800
600
400
200
ADAPTER
USB
PORT
1 μ F
1 μ F
2k
1%
1.24k
1%
DCIN VNTC
USBIN HPWR
IUSB NTC
IDC ITERM
GND
2k
1%
T
+
4.2V
SINGLE CELL
Li-Ion BATTERY
0
4.2
4.0
3.8
3.6
3.4
5.0
CONSTANT VOLTAGE
USBIN = 5V
T A = 25 ° C
R IDC = 1.24k
R IUSB = 2k
HPWR = 5V
2.5
4097 TA01
0
0
0.5
1.0
1.5
2.0
2.5
3.0
TIME (HR)
4097 TA01b
4097f
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4098 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual-Input Power Manager |
| LTC4098-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual-Input Power Manager |
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| LTC4098EPDC#PBF | 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:Bat-Track™, PowerPath™ 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| LTC4098EPDC#TRPBF | 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:Bat-Track™, PowerPath™ 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
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