Battery Charger. XA4017 Datasheet

XA4017 Datasheet PDF, Equivalent


Part Number

XA4017

Description

Standalone Linear Li-Lon Battery Charger

Manufacture

XINNA SEMI

Total Page 6 Pages
PDF Download
Download XA4017 Datasheet


XA4017 Datasheet
XA4017
Standalone Linear Li-Lon Battery Charger
Features
Programmable Charge Current Up to 800mA
No MOSFET, Sense Resistor or Blocking
Diode Required
Complete Linear Charger 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
Automatic Recharge
60uA Supply Current in Shutdown
2.9V Trickle Charge Threshold
Two sides of LED showing
Available in 6-Lead SOT-23 Package
Description
The XA4017 is a complete constant-current/
lithium-ion batteries. Its package and low external
component count make the XA4017 ideally
suited for portable applications. Furthermore, the
XA4017 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
programmed externally with a single resistor. The
XA4017 automatically terminates the charge
cycle when the charge current drops to 1/10th the
programmed value after the final float voltage is
reached.
Applications
Charger for Li-Ion Coin Cell Batteries
Portable MP3 Players, Wireless Headsets
Bluetooth Applications
Multifunction Wristwatches
supply) is removed, the XA4017 automatically
enters a low current state, dropping the battery
drain current to less than 1uA. The XA4017 can
be put into shutdown mode, reducing the supply
current to 60uA. Other features include charge
current monitor, under voltage lockout, automatic
recharge and a status pin to indicate charge
termination and the presence of an input voltage.
The XA4017 converters are available in the
industry standard SOT-23-6 power packages
(or upon request).
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XA4017 Datasheet
Order Information
① ②XA4017 -
:
SYMBOL
DESCRIPTION
Denotes Output voltage:
4.2V
Denotes Package Types:
E: SOT-23-6
Typical Application
XA4017
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Features Datasheet pdf XA4017 Standalone Linear Li-Lon Battery Charger Features Programmable Charge C urrent Up to 800mA No MOSFET, Sense Res istor or Blocking Diode Required Comple te Linear Charger Package for Single Ce ll Lithium-Ion Batteries Constant-Curre nt/Constant-Voltage Operation with Ther mal Regulation to Maximize Charge Rate Without Risk of Overheating Charges Sin gle Cell Li-Ion Batteries Directly from USB Port Preset 4.2V Charge Voltage wi th 1% Accuracy Automatic Recharge 60uA Supply Current in Shutdown 2.9V Trickle Charge Threshold Two sides of LED show ing Available in 6-Lead SOT-23 Package Description The XA4017 is a complete c onstant-current/ lithium-ion batteries. Its package and low external component count make the XA4017 ideally suited f or portable applications. Furthermore, the XA4017 is specifically designed to work within USB power specifications. N o external sense resistor is needed, an d no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates th.
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