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Control ICs ensure safe battery charging

Posted: 05 Jun 2009 ?? ?Print Version ?Bookmark and Share

Keywords:Li-ion battery? battery charger? control IC?

XC6801/XC6802 control IC

Torex Semiconductor Ltd is offering the XC6801/XC6802 series of ICs for single-cell Li-ion battery charging control.

The XC6801/XC6802 series of control ICs is designed for single-cell Li-ion battery chargers used in various types of portable devices. The use of Li-ion batteries has increased in recent years as portable devices have become smaller, lighter, and are used for longer battery life. Torex has developed a Li-ion battery charging control IC that achieves a high-precision charging current and charging voltage, as well as safety and efficiency. The XC6801 series allows selection of 100mA (max.) or 500mA (max.) for the charging current, and is suitable for applications that charge from USB.

The XC6802 series allows the charging current to be freely set by means of an external resistor RSEN (maximum charging current of 800mA), supporting charging of a wide variety of applications.

The XC6801/XC6802 also provide overcurrent protection and thermal shutdown protection. Inrush current restriction is also provided, enabling a safe and stable charging supply.

During trickle charging, both series supply only one-tenth the set charging current to the battery, providing excellent safety.

The XC6801/XC68 operate at 4.25V to 6V voltage range and feature supply current of 12A (XC6801) and 15A (XC6802). The control ICs also pack automatic recharging function, which includes a charging status output pin.

Application of the small USP-6C package (1.8mm x 2mm x 0.6mm) with excellent heat dissipation properties also help conserve space in circuit design.

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