XC6805 Series

One Cell Li-ion/Li-polymer Linear Charger IC with Battery Temperature Detection

The XC6805 is a Constant-Voltage (CV) and Constant-Current (CC) type charging IC for linear charging of single-cell Li-ion batteries and Li-polymer batteries. The basic charging cycle consists of trickle charge mode followed by main charge mode.

This IC supports temperature control based on JEITA, making it possible to safely charge Li-ion batteries and Li-polymer batteries by controlling the CV charge voltage and CC charge current according to the temperature. By connecting a resistor to the charge status output pin, it is possible to check the charge condition via the charge status output (CSO) pin voltage. The IC is housed in the small USP-6EL, USP-6B01 package with high heat dissipation, and a charge circuit can be configured using a minimum of external components.

Typical Application Circuit


Operating Voltage Range 4.5V~6V
Supply Current 100μA (TYP.)
CC Charge Curren 5mA~40mA Can be set by external resistance
CV Charge Voltage 4.2V, 4.05V (at high temperature) Internally fixed
Protection Circuit Thermistor detection function(Except for the XC6805xN)
Safety timer function
UVLO (Under Voltage Lock Out)
Thermal shutdown
Dropout voltage monitor function
Charging over-voltage monitor function
Charging over-current monitor function
Recharge function
Operating Ambient Temperature -40°C~+85°C



Technical Document

Quality Reports