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参数资料
| 型号： | LTC4054ES5-4.2#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT; Package: SOT; No of Pins: 5; Temperature Range: -40°C to +125°C |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | LEAD FREE, PLASTIC, TSOT-23, 5 PIN |
| 文件页数： | 1/16页 |
| 文件大小： | 185K |
| 代理商： | LTC4054ES5-4.2#TRPBF |
1
LTC4054-4.2/LTC4054X-4.2
405442xf
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
Standalone Linear
Li-Ion Battery Charger with
Thermal Regulation in ThinSOT
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Programmable Charge Current Up to 800mA
s
No MOSFET, Sense Resistor or Blocking
Diode Required
s
Complete Linear Charger in ThinSOT
TM Package for
Single Cell Lithium-Ion Batteries
s
Constant-Current/Constant-Voltage Operation with
Thermal Regulation* to Maximize Charge Rate
Without Risk of Overheating
s
Charges Single Cell Li-Ion Batteries Directly
from USB Port
s
Preset 4.2V Charge Voltage with
±1% Accuracy
s
Charge Current Monitor Output for Gas
Gauging*
s
Automatic Recharge
s
Charge Status Output Pin
s
C/10 Charge Termination
s
25
A Supply Current in Shutdown
s
2.9V Trickle Charge Threshold (LTC4054)
s
Available Without Trickle Charge (LTC4054X)
s
Soft-Start Limits Inrush Current
s
Available in 5-Lead SOT-23 Package
s
Cellular Telephones, PDAs, MP3 Players
s
Charging Docks and Cradles
s
Bluetooth Applications
ThinSOT is a trademark of Linear Technology Corporation.
*U.S.Patent No. 6,522,118
The LTC
4054 is a complete constant-current/constant-
voltage linear charger for single cell lithium-ion batteries.
Its ThinSOT package and low external component count
make the LTC4054 ideally suited for portable applications.
Furthermore, the LTC4054 is specifically designed to work
within USB power specifications.
No external sense resistor is needed, and no blocking
diode is required due to the internal MOSFET architecture.
Thermal feedback regulates the charge current to limit the
die temperature during high power operation or high
ambient temperature. The charge voltage is fixed at 4.2V,
and the charge current can be programmed externally with
a single resistor. The LTC4054 automatically terminates
the charge cycle when the charge current drops to 1/10th
the programmed value after the final float voltage is
reached.
When the input supply (wall adapter or USB supply) is
removed, the LTC4054 automatically enters a low current
state, dropping the battery drain current to less than 2
A.
The LTC4054 can be put into shutdown mode, reducing
the supply current to 25
A.
Other features include charge current monitor, undervoltage
lockout, automatic recharge and a status pin to indicate
charge termination and the presence of an input voltage.
600mA Single Cell Li-Ion Charger
VCC
1.65k
4.2V
Li-Ion
BATTERY
405442 TA01a
LTC4054-4.2
1
F
VIN
4.5V TO 6.5V
BAT
4
3
5
2
PROG
GND
600mA
Complete Charge Cycle (750mAh Battery)
TIME (HOURS)
0
CHARGE
CURRENT
(mA)
1.5
405442 TAO1b
0.5
1.0
2.0
700
600
500
400
300
200
100
0
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
0.25
0.75
1.25
1.75
CONSTANT
POWER
CONSTANT
VOLTAGE
CONSTANT
CURRENT
CHARGE
TERMINATED
BATTERY
VOLTAGE
(V)
VCC = 5V
θJA = 130°C/W
RPROG = 1.65k
TA = 25°C
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4054XES5-4.2#TRMPBF | Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT; Package: SOT; No of Pins: 5; Temperature Range: -40°C to +125°C |
| LTC4054LES5-4.2#TRMPBF | Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT; Package: SOT; No of Pins: 5; Temperature Range: -40°C to +125°C |
| LTC4055EUF#PBF | USB Power Controller and Li-Ion Linear Charger; Package: QFN; No of Pins: 16; Temperature Range: -40°C to +125°C |
| LTF5022T-4R7N2R0-LC | 1 ELEMENT, 4.7 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
| LTF5022T-3R3N2R5-LC | 1 ELEMENT, 3.3 uH, FERRITE-CORE, GENERAL PURPOSE INDUCTOR, SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4054L | 制造商:LINER 制造商全称:Linear Technology 功能描述:150mA Standalone Linear Li-Ion Battery Charger in ThinSOT |
| LTC4054L-4.2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:150mA Standalone Linear Li-Ion Battery Charger in ThinSOT |
| LTC4054LES5-4.2 | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion 10mA to 150mA 4.2V 5-Pin TSOT-23 |
| LTC4054LES5-4.2#PBF | 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:CHARGER BATTERY LI-ION 0.8A 5SOT23 制造商:Linear Technology 功能描述:CHARGER, BATTERY, LI-ION, 0.8A, 5SOT23 |
| LTC4054LES5-4.2#TR | 功能描述:IC CHARGR BATTERY L-ION TSOT23-5 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 |
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