About Torex Charger ICs

Torex charger ICs are ICs for linear chargers, which use constant-voltage (CV) and constant-current (CC) charging methods for 1-cell Li-ion batteries and Li-polymer batteries.
Their charging cycles are carried out in the sequence of a trickle charging mode followed by a main charging mode.
These ICs are compatible with temperature control based on JEITA standards, to properly perform control of CV charge voltage and CC charge current according to battery pack temperature, and to allow safe charging of Liion and Li-polymer batteries.
Connecting an LED to the charging status output pin will allow the charging status to be confirmed according to the illumination of the LED.
This lineup also includes products that can be set with a charging current of 5mA, which is ideal for small, lowcapacity lithium batteries in equipment such as wearable devices.

JEITA-Compliant Battery Temperature Monitoring Function
(Applicable ICs: XC6803, XC6804, XC6805, XC6806, XC6808)

Charge Current vs.Thermistor Temperature
Charge Voltage vs.Thermistor Temperature

The battery temperature monitoring function monitors the temperature of an Li-ion battery during charging by use of an NTC thermistor connected to a THIN pin. This allows safe charging by controlling the charge completion voltage and charge current according to the Li-ion battery temperature as shown in the upper diagram.

Current Path Function (Applicable IC: XC6806)

Power can be supplied to the system from the OUT pin while an Li-ion battery is charged at the same time from the BAT pin.
An internal input current limiting function sets a limit so that current can be supplied while preventing the input (VIN) from reaching an over-current condition.

Li-ion Battery Charger IC Selection Guide

XC6801

XC6802

XC6803

XC6804

XC6805

XC6808

XC6806

Charge Method Linear
CC/CV
Input Voltage Range 4.25V-6.0V 4.25V-6.0V 4.5V-6.0V 4.5V-6.0V 4.5V-6.0V 4.5V-6.0V 4.5V-5.5V
Charge Current 95mA/475mA 100~800mA 40mA~280mA 200mA~800mA 5mA~40mA 5mA~40mA 10mA~380mA
Charge Termination Voltage 4.20V 4.20V 4.20V 4.20V 4.20V 3.5-4.45V 3.5-4.45V
Trickle Charge Mode Optional Optional
Trickle Charge Voltage 2.90V 2.90V 2.90V 2.90V 2.90V 2.90V 2.90V
Recharge function Optional Optional
Recharge Battery Voltage(Ta=25℃) Δ150mV Δ150mV 3.9V 3.9V 3.9V 3.9V Δ100mV
Current Path function - - - - - -
Battery Temperature Monitor - - Optional Optional
- - JEITA
JEITA
JEITA
JEITA
JEITA
Safety Timer
Function
Main Charge - - 5hs 10hs 5hs 5hs or 10hs 5hs
Trickle Charge - - 0.5hs 2hs 0.5hs 0.5hs 0.5hs
Battery Pin Reverse Current 2uA (max.) 1uA (max.) 0.5uA 5uA 0.5uA 0.1µA 0.1µA
UVLO
Thermal Shutdown
Input Voltage Dropout Monitoring function
Charging Over-Voltage monitor function - -
Charging Over-Current monitor function -
PKG USP-6EL USP-6EL USP-6EL USP-6EL USP-6B07 USP-10B
USP-6C USP-6C - SOP-8FD USP-6B07 LGA-10B01
SOT-25 SOT-25 - - - - -
SOT-89-5 SOT-89-5 - - - - -