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A4051MP8VRA中文资料PDF规格书
A4051MP8VRA规格书详情
DESCRIPTION
The
A4051 is a complete constant current & constant
voltage linea r charger for single cell lithium ion
batteries. Its P SOP 8 pac kage and low external
component count make the A4051 ideally suited for
portable applications. Furthermore, the A4051 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 tem perature 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
A4051
automatically terminates the charge cycle
when the charge current d rops to 1/10 th the
programmed value after the final float voltage is
reached.
When the input supply (wall adapter or USB supply)
is removed, the A4051 automatically enters a low
current state, dropping the battery drain current to
less than 0.5uA. The A405 1 can be put into shutdown
mode, reducing the supply current to 50uA.
Other features include Battery temperature monitor,
under voltage lockout, automatic recharge and two
status pins to indicate charge and charge termination.
The
A4051 is available in PS OP 8 p ackage
FEATURES
⚫ Programmable Charge Current Up to 1000mA
⚫ 1/10th of the constant charge current
⚫ No MOSFET, Sense Resistor or Blocking Diode
Required
⚫ Complete Linear Charger in P SOP 8 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
⚫ Charge Current Monitor Output for Gas Gauging
⚫ Automatic Recharge
⚫ Charge state pairs of output, no battery and fault
status display
⚫ C/10 Charge Termination
⚫ 50uA Supply Current in Shutdown
⚫ 2.9V Trickle Charge Threshold
⚫ Soft-Start Limits Inrush Current
⚫ Battery temperature monitoring function
⚫ Available in PSOP8 package APPLICATION
⚫ Cellular Telephones, PDAs, MP3 /MP4 Players
⚫ Charging Docks and Cradles
⚫ Bluetooth 、GPS Applications
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
AIT |
2020+ |
11+PB |
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 | ||
AIT |
23+ |
11PB |
20000 |
原厂原装正品现货 |
询价 | ||
AIT |
22+23+ |
SOT23-5 |
43783 |
绝对原装正品现货,全新深圳原装进口现货 |
询价 | ||
AIT |
SOT23-5 |
265209 |
假一罚十原包原标签常备现货! |
询价 | |||
AIT/创瑞 |
2122+ |
SOT23-5 |
18005 |
全新原装正品,优势渠道,价格美丽可做含税 |
询价 | ||
AIT |
22+ |
SO23-5 |
25000 |
原装现货,价格优惠,假一罚十 |
询价 | ||
AIT |
19+ |
11PB |
20000 |
2200 |
询价 | ||
AIT |
21+ |
4000 |
只做原装 |
询价 | |||
AIT |
22+ |
SOP8 |
25000 |
只有原装原装,支持BOM配单 |
询价 | ||
AIT |
20+ |
SOT23-5 |
63258 |
原装优势主营型号-可开原型号增税票 |
询价 |