XA4202 Datasheet PDF | XINNA SEMI





(PDF) XA4202 Datasheet PDF

Part Number XA4202
Description Standalone Li-Lon Switch Mode Battery Charger
Manufacture XINNA SEMI
Total Page 11 Pages
PDF Download Download XA4202 Datasheet PDF

Features: XA4202 Standalone Li-Lon Switch Mode Bat tery Charger Features Input Supply Ran ge: 4.7V-6V High Efficiency Current Mod e PWM Controller End - Charge - Current Detection Output Constant Switching Fr equency for Minimum Noise ±1% Charge V oltage Accuracy Automatic Battery Recha rge Automatic Shutdown When Input Suppl y is Removed Automatic Trickle Charging of Low Voltage Batteries Battery Tempe rature Sensing Stable with Ceramic Outp ut Capacitor 8-Lead SO Package Descrip tion The XA4202 is a complete battery c harger controller for one (4.2V) cell l ithium-ion battery. The XA4202 provides a small, simple and efficient solution to fast charge Li-ion battery. An exte rnal sense resistor sets the charge cur rent with high accuracy. An internal re sistor divider and precision reference set the final float voltage to 4.22V pe r cell with ±1% accuracy. When the inp ut supply is removed, the HX6202 automa tically enters a low current sleep mode , dropping the battery drain current to 4µA. After the charge .

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XA4202 datasheet
XA4202
Standalone Li-Lon Switch Mode Battery Charger
Features
Input Supply Range: 4.7V-6V
High Efficiency Current Mode PWM Controller
End - Charge - Current Detection Output
Constant Switching Frequency for Minimum
Noise
±1% Charge Voltage Accuracy
Automatic Battery Recharge
Automatic Shutdown When Input Supply is
Removed
Automatic Trickle Charging of Low Voltage
Batteries
Battery Temperature Sensing
Stable with Ceramic Output Capacitor
8-Lead SO Package
Description
The XA4202 is a complete battery charger
controller for one (4.2V) cell lithium-ion battery.
The XA4202 provides a small, simple and efficient
solution to fast charge Li-ion battery. An external
sense resistor sets the charge current with high
accuracy. An internal resistor divider and precision
reference set the final float voltage to 4.22V per
cell with ±1% accuracy.
When the input supply is removed, the HX6202
automatically enters a low current sleep mode,
dropping the battery drain current to 4µA. After the
charge cycle ends, if the battery voltage drops
below 4.05V per cell, a new charge cycle will
automatically begin.
The XA4202 is available in the 8-lead SO
Package.
Application
Charging Docks
Handheld Instruments
Portable Computers
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