Standalone Li-Lon Switch Mode Battery Charger
Input Supply Range: 4.7V ～ 6V
High Efficiency Current Mode PWM Controller
End - Charge - Current Detection Output
Constant Switching Frequency for Minimum
±1% Charge Voltage Accuracy
Automatic Battery Recharge
Automatic Shutdown When Input Supply is
Automatic Trickle Charging of Low Voltage
Battery Temperature Sensing
Stable with Ceramic Output Capacitor
8-Lead SOP Package
The HX6202 is a complete battery charger
controller for one (4.22V) cell lithium-ion battery.
The HX6202 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
The HX6202 is available in the 8-lead SOP
Typical Application Circuit
*The charge current can be set by IBAT= 0.17V/R3.
*This application circuit is for MID.