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参数资料
| 型号： | LTC4059AEDC#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI-ION REG 6DFN |
| 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： | 3.75 V ~ 8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN-EP（2x2） |
| 包装： | 带卷 (TR) |
LTC4059/LTC4059A
900mA Linear Li-Ion
Battery Chargers with
Thermal Regulation in 2 × 2 DFN
FEATURES
DESCRIPTIO
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Programmable Charge Current Up to 900mA
Charge Current Monitor Output for Charge
Termination
Constant-Current/Constant-Voltage Operation with
Thermal Regulation to Maximize Charging Rate
Without Risk of Overheating
Constant-Current Source Mode for Charging
Nicke l Batteries (LTC4059 Only)
ACPR Pin Indicates Presence of Input Supply
(LTC4059A Only)
No External MOSFET, Sense Resistor or Blocking
Diode Required
Operating Supply Voltage from 3.75V to 8V
Charges Single Cell Li-Ion Batteries Directly from
USB Port
Preset 4.2V Charge Voltage with 0.6% Accuracy
10 μ A Supply Current in Shutdown Mode
Tiny 6-Lead (2mm × 2mm) DFN Package
The LTC ? 4059/LTC4059A are constant-current/constant-
voltage linear chargers for single cell lithium-ion batteries.
Their 2mm × 2mm DFN package and low external compo-
nent count make these chargers especially well suited for
portable applications. Furthermore, they are designed to
work within USB power specifications.
No external sense resistor, MOSFET or blocking diode is
required. Thermal feedback regulates the charge current
to limit the die temperature during high power operation or
high ambient thermal conditions. The charge voltage is
fixed at 4.2V and the charge current is programmable.
When the input supply (wall adapter or USB supply) is
removed, the LTC4059/LTC4059A automatically enter a low
current state, dropping the battery current drain to less than
1 μ A. With power applied, they can be put into shutdown
mode, reducing the supply current to 10 μ A.
The LTC4059A features an open-drain status pin to indi-
APPLICATIO S
cate the presence of an input voltage. The LTC4059 can be
used as a constant-current source to charge Nickel cells.
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Wireless PDAs
Cellular Phones
Portable Electronics
Wireless Headsets
Digital Cameras
Other features include undervoltage lockout protection
and a current monitor pin which can indicate when to
terminate a charge cycle.
The LTC4059/LTC4059A are available in a 6-lead, low
profile (0.75mm) 2mm × 2mm DFN package.
, 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.
TYPICAL APPLICATIO
Complete Charge Cycle (800mAh Battery)
700 4.4
CONSTANT CONSTANT
V DD
600
CURRENT
VOLTAGE
4.2
V IN
4.5V TO 8V
50k
500
4.0
V CC ACPR
LTC4059A
600mA
μ P
400
3.8
1 μ F
EN
BAT
300
3.6
GND
PROG
2k
+
4.2V
Li-Ion
200
3.4
4059 TA01
BATTERY
100
0
V CC = 5V
R PROG = 2k
T A = 25 ° C
3.2
3.0
0
0.5
1
1.5
2
2.5
TIME (HOURS)
4059 TA02
4059fb
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4059EDC | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion 500mA 4.2V 6-Pin DFN EP |
| LTC4059EDC#PBF | 制造商:Linear Technology 功能描述:DP-Battery Charger, Cut Tape Monolithic Li-Ion Battery Charger in DFN |
| LTC4059EDC#TR | 功能描述:IC BATT CHARGER LI-ION REG 6DFN 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 |
| LTC4059EDC#TRM | 功能描述:IC BATT CHARGER LI-ION REG 6DFN 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 |
| LTC4059EDC#TRMPBF | 功能描述:IC BATT CHARGER LI-ION REG 6DFN 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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