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.

The XC6806 is a linear Li-Ion/Li-Po battery charger with a 450mA Input Current Limit and integrated Current Path to maintain and prioritise the system load during the charging cycle. It also includes a novel Storage Mode Shutdown function to help conserve battery life whilst the end product is in transit to the shops.

The integral input current limit makes the XC6806 ideal for USB charging or applications that use smaller AC/DC adaptors. The temperature monitoring function meets JEITA standards and by controlling the charge voltage and charge current as appropriate for the temperature, the battery can be charged safely. Additional protective functions include a safety timer, UVLO, thermal control, and reverse current protection.

The Storage Mode Shutdown function completely shuts off power supply from the battery to the system to prevent battery leakage current while the device is in storage. When a power is connected to VIN the Shutdown Mode is cleared. This allows the device to be operated with full battery immediately after purchase even if it has been in storage for extended periods of time.

The XC6806 is available in the small USP-10B or LGA-10B01 package and a charging circuit can be designed with minimal external components.

Key Features