参数资料
| 型号： | LTC4069EDC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION 6-DFN |
| 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 ~ 5.5 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) |
LTC4069
Complete Linear Charger in 2mm × 2mm DFN
C/10 Charge Current Detection Output
Timer Charge Termination
Charge Current Programmable Up to 750mA with
No External MOSFET, Sense Resistor or Blocking
NTC Thermistor Input for Temperature Qualified
Preset 4.2V Float Voltage with 0.6% Accuracy
Constant-Current/Constant-Voltage Operation with
Charge Current Monitor Output for Gas Gauging
Automatic Recharge
Charges Single-Cell Li-Ion Batteries Directly from
20μA Supply Current in Shutdown Mode
Soft-Start Limits Inrush Current
Tiny 6-Lead (2mm × 2mm) DFN Package
Wireless PDAs
Cellular Phones
Portable Electronics
FEATURES
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Package
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5% Accuracy
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Diode Required
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Charging
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Thermal Feedback to Maximize Charge Rate
Without Risk of Overheating
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USB Port
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APPLICATIONS
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L , LT, LTC LTM, Linear Technology and the Linear logo 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 APPLICATION
Standalone 750mA Li-Ion
Battery Charger in 2 × 2 DFN
with NTC Thermistor Input
DESCRIPTION
The LTC ? 4069 is a complete constant-current/con-
stant-voltage linear charger for single-cell lithium-ion
batteries. The 2mm × 2mm DFN package and low external
component count make the LTC4069 especially well-suited
for portable applications. Furthermore, LTC4069 is specif-
ically designed to work within USB power specifications.
The CHRG pin indicates when charge current has dropped
to ten percent of its programmed value (C/10). An
internal timer terminates charging according to battery
manufacturer specifications.
No external sense resistor or blocking diode is required
due to the internal MOSFET architecture. Thermal feed-
back regulates charge current to limit the die temperature
during high power operation or high ambient temperature
conditions.
When the input supply (wall adapter or USB supply) is
removed, the LTC4069 automatically enters a low current
state, dropping battery drain current to less than 1μA. With
power applied, LTC4069 can be put into shutdown mode,
reducing the supply current to less than 20μA.
The LTC4069 also includes automatic recharge, low-bat-
tery charge conditioning (trickle charging), soft-start (to
limit inrush current) and an NTC thermistor input used to
monitor battery temperature.
The LTC4069 is available in a tiny 6-lead, low profile
(0.75mm) 2mm × 2mm DFN package.
Complete Charge Cycle (1100mAh Battery)
Standalone Li-Ion Battery Charger
600
500
CONSTANT
CURRENT
CONSTANT
VOLTAGE
4.50
4.25
V IN
4.3V TO 5.5V
R NOM
100k
R NTC
100k
R1
510
1μF
V CC BAT
LTC4069
CHRG PROG
NTC GND
500mA
+
R PROG
2k
4.2V
Li-Ion
BATTERY
4069 TA01
400
300
200
100
0
V CC = 5V
R PROG = 2k
0 0.5 1
CHRG
TRANSITION
CHARGE
TERMINATION
1.5 2 2.5 3 3.5 4
4.5
5
4.00
3.75
3.50
3.25
3.00
1
For more information www.linear.com/LTC4069
TIME (HOURS)
4069 TA01b
4069fc
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相关代理商/技术参数 |
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| LTC4070 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:Ultralow Voltage Step-Up Converter and Power Manager |
| LTC4070EDDB | 制造商:LINER 制造商全称:Linear Technology 功能描述:Li-Ion/Polymer Shunt Battery Charger System |
| LTC4070EDDB#PBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/Li-Pol 50mA 4.2V 10-Pin DFN EP Bulk 制造商:Linear Technology 功能描述:IC BATTERY CHARGER 50mA DFN-8 制造商:Linear Technology 功能描述:IC, BATTERY CHARGER, 50mA, DFN-8 制造商:Linear Technology 功能描述:IC, BATTERY CHARGER, 50mA, DFN-8; Battery Type:Li-Ion, Li-Polymer; Battery Charge Voltage:4.2V; Charge Current Max:50mA; Battery IC Case Style:DFN; No. of Pins:8; No. of Series Cells:1; Operating Temperature Min:-40C ;RoHS Compliant: Yes |
| LTC4070EDDB#TRMPBF | 功能描述:IC LI-ION/POLY BATT CHARGER 8DFN 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 |
| LTC4070EDDB#TRPBF | 功能描述:IC BATT CHRGR LIION/POLY 8DFN 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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