XC6801A421MR-G

The XC6801 series is a constant-current/constant-voltage linear charger IC for single cell Lithium-ion and Lithium polymer batteries. The XC6801 includes a reference voltage source, battery voltage monitor, driver transistor, constant-current/constant-voltage charge circuit, overheat protection circuit and phase compensation circuit. The battery charge termination voltage is internally set to 4.2V ±0.7% and the trickle charge voltage and accuracy is 2.9V ±3%. In trickle charge mode, a safe Lithium-ion and Lithium polymer battery charge is possible because approximately only 1/10 of the full charge current is supplied to the battery. As it is possible to select a highly accurate charge current of either 100mA (MAX.) for L level input to the LIM pin or 500mA (MAX.) for H level, the series is ideal for applications where the charge is from USB. The series’ charge status output pin, /CHG pin, is capable of checking the IC’s charging state via connection to an external LED.

• Operating voltage Range: 4.25V-6.0V
• Charge current (externally set): 100mA (MAX.)@LIM pin= 500mA (MAX.)@LIM pin= H
• Charge Termination voltage: 4.2V ±0.7%
• Trickle Charge voltage: 2.9V ±3%
• Supply current (Stand-by): 12µA (TYP.)
• Operating Ambient Temperature: -40°Cto 85°C
• Packages: SOT-89-5, SOT-25, USP-6C
• Constant-current /constant-voltage operation with thermal shutdown
• Automatic recharge
• Charge status output pin
• Soft-start function (Inrush limit current )
• Environmentally Friendly: EU Rohs Compliant, Pb Free