Battery Chargers


XC6803/04/08 Single Cell Li-ion / Li-Polymer Charger IC

Torex battery charger ICs use constant-voltage (CV) and constant-current (CC) charging methods for 1-cell Li-ion batteries and Li-polymer batteries. Charging cycles are carried out in the sequence of an initial trickle charging mode followed by a main charging mode.

These IC also support temperature control based on JEITA, making it possible to safely charge Li-ion batteries by controlling the CV charge voltage and CC charge current according to the temperature.

The line-up also includes products that can be set with a charging current of 5mA, which is ideal for small, low capacity lithium batteries in equipment such as wearable devices.

XC6803/04/08 with Temperature Monitoring

The XC6803/04/08 are Constant-Voltage (CV) and Constant-Current (CC) type charging IC for linear charging of single-cell Li-ion and Li-polymer batteries.

An LED can be connected to the charge status output pin to allow confirmation of charging by LED illumination. The IC are housed in small USP-6EL and USP-6B07 packages with excellent thermal characteristics. A charge circuit can be configured using a minimum number of external components.

The XC6808 is available in an ultra-low profile USP-6B07 package measuring 2.0 x 1.8 x 0.33mm making these our thinnest battery chargers yet. In addition, with the XC6808, when the input supply is removed, the XC6808 automatically enters a low battery sink state, reducing the battery sink current to only 0.1uA (typ.), helping to ensure a long life for smaller batteries.


XC6803/04/08 Typical Application Circuit

Li-ion battery temperature monitoring function

The IC monitors the Li-ion battery temperature during charging by means of an NTC Thermistor connected to the THIN pin. CC charging and CV charging are controlled based on the Li-ion battery temperature as shown below to enable safe charging.

XC6808xN Typical Application Circuit 


Optimised for Small Batteries

To fit very small batteries, the minimum value of trickle charge current and charge completion current is 0.5mA. This ensures safer charging and longer battery life for small mobile equipment.



Torex Family of Battery Charger ICs

Series XC6803 XC6804 XC6808
Operating Voltage Range 4.5V~6.0V 4.5V~6.0V 4.5V~6.0V
CC Charge Current  40mA ~ 280mA  200mA ~ 800mA 5mA ~ 40mA
CV Charge Voltage 4.2V 4.2V, 4.35V, 4.4V Fixed
BAT Pin Reverse Current 0.5µA 4.5µA 0.1µA
Supply Current 100µA 110µA 100µA
Charge Functions
Trickle Charge Mode Yes Yes Optional
Recharge Function Optional Optional Yes
Battery Temperature Monitor JEITA JEITA (Opt) JEITA (Opt)
Protection Circuits
Thermal Shutdown Yes Yes Yes
Reverse Current Protection Yes Yes Yes
Other Functions
Current Path - - -
Shutdown Mode - - -
Packages USP-6EL



Smallest Package Dimensons (mm) 2.0 x 1.8 x 0.4 2.0 x 1.8 x 0.4 1.8 x 2.0 x 0.33
Product Page XC6803 XC6804 XC6808