XA4054 Charger Datasheet

XA4054 Datasheet, PDF, Equivalent


Part Number

XA4054

Description

Standalone Linear Li-Lon Battery Charger

Manufacture

XINNA SEMI

Total Page 10 Pages
Datasheet
Download XA4054 Datasheet


XA4054
XA4054
Standalone Linear Li-Lon Battery
Charger with Thermal Regulation
Features
Programmable Charge Current Up to
800mA
No MOSFET, Sense Resistor or Blocking
Diode Required
Complete Linear Charger 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
Automatic Recharge
65uA Supply Current in Shutdown
2.9V Trickle Charge Threshold
Available in 5-Lead SOT-23 Package
Applications
Charger for Li-Ion Coin Cell Batteries
Portable MP3 Players, Wireless Headsets
Bluetooth Applications
Multifunction Wristwatches
Description
The XA4054 is a complete constant-current/
constant voltage linear charger for single cell
lithium-ion batteries. Its package and low e
xternal component count make the XA4054 i
deally suited for portable applications. Furthe
rmore, the XA4054 is specifically designed t
o 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 XA4054 automatically terminates the
charge cycle when the charge current drops to
1/10th the programmed value after the final float
voltage is reached.
The XA4054 converters are available in the
industry standard SOT-23-5 power packages
(or upon request).
Order Information
① ②:XA4054 -
SYMBOL
DESCRIPTION
Denotes Output voltage:
4.2V
Denotes Package Types:
E: SOT-23-5
www.szxinna.com
1

XA4054
Typical Application
600mA Single Cell Li-Lon Charger
DC+
4.5V to 6.5V
CIN
1uF
4 VCC
BAT 3
PROG 5
1 CHRG GND R2
30R01Ω 2
VOUT
Battery
COUT
1uF
XA4054
www.szxinna.com
2


Features XA4054 Standalone Linear Li-Lon Battery Charger with Thermal Regulation Featur es Programmable Charge Current Up to 80 0mA No MOSFET, Sense Resistor or Blocki ng Diode Required Complete Linear Charg er for Single Cell Lithium-Ion Batterie s Constant-Current/Constant-Voltage Ope ration with Thermal Regulation* to Maxi mize Charge Rate Without Risk of Overhe ating Charges Single Cell Li-Ion Batter ies Directly from USB Port Preset 4. 2V Charge Voltage with 1% Accuracy Auto matic Recharge 65uA Supply Current in S hutdown 2.9V Trickle Charge Threshold A vailable in 5-Lead SOT-23 Package Appli cations Charger for Li-Ion Coin Cell Ba tteries Portable MP3 Players, Wireless Headsets Bluetooth Applications Multifu nction Wristwatches Description The XA 4054 is a complete constant-current/ co nstant voltage linear charger for singl e cell lithium-ion batteries. Its packa ge and low e xternal component count ma ke the XA4054 i deally suited for porta ble applications. Furthe rmore, the XA4054 is specifically desi.
Keywords XA4054, datasheet, pdf, XINNA SEMI, Standalone, Linear, Li-Lon, Battery, Charger, A4054, 4054, 054, XA405, XA40, XA4, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)