LP4054中文资料PDF规格书
LP4054规格书详情
Description
The LP4054 is a complete constant-current/constantvoltage
linear charger for single cell lithium-ion batteries.
Its ThinSOT package and low external component
count make the LP4054 ideally suited for portable
applications. Furthermore, the LP4054 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
LP4054 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 LP4054 automatically enters a low current state,
dropping the battery drain current to less than 2μA. The
LP4054 can be put into shutdown mode, reducing he
supply current to 25μA.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.
Features
Programmable Charge Current Up to 800mA
No MOSFET, Sense Resistor or Blocking Diode
Required
Complete Linear Charger in ThinSOT
Package for
Single Cell Lithium-ion Batteries
Constant-Current/Constant-Voltage Operation
with Thermal Regulation to Maximize Charge
Rate Without Risk of Overheating
Charges Single Cell Li-Ion Batteries Directly
from USB Port
Preset 4.2V Charge Voltage with ± 1 Accuracy
Charge Current Monitor Output for Gas
Gauging
Automatic Recharge
Soft-Start Limits Inrush Current
Available in 5-Lead SOT-23 Package
2.9V Trickle Charge Threshold
C/10 Charge Termination
25mA Supply Current in Shutdown
2.9V Trickle Charge Threshold
Applications
Portable Media Players/MP3 players
Cellular and Smart mobile phone
Charging Docks and Cradles
Bluetooth Applications
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
微源 |
23+ |
NA/ |
100000 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
POWER |
2016+ |
SOT23-5 |
3552 |
只做原装,假一罚十,公司可开17%增值税发票! |
询价 | ||
LOWPOWE |
2020+ |
SOT23-5 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
LOWPOWE |
21+ |
SOT23-5 |
6688 |
十年老店,原装正品 |
询价 | ||
LOWPOWER |
20+ |
SOT23-5 |
63258 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
LOWPOWER |
2013+ |
SOT23-5 |
18998 |
专业代理锂电池充电管理IC |
询价 | ||
LOWPOWERSEMI微源 |
24+ |
SOT23-5 |
156583 |
明嘉莱只做原装正品现货 |
询价 | ||
LOWPOWER微源 |
23+ |
SOT23-5 |
108000 |
全新原装现货,假一赔十。 |
询价 | ||
NS/TI |
22+23+ |
SOT23-5 |
41923 |
绝对原装正品现货,全新深圳原装进口现货 |
询价 | ||
LOWPOWER |
2022 |
SOT23-5 |
80000 |
原装现货,OEM渠道,欢迎咨询 |
询价 |