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Toshiba offers battery charger ICs that provide accurate control over the charging of lithium-ion rechargeable batteries for mobile devices, such as smartphones and cellular phones.
The TC7710 battery charger IC integrates a detection circuit corresponding to Battery Charging Specification Revision 1.2 and has a maximum charging current of 2 A*1.
Charging current and voltage are programmable via the I2C bus; thus, charging can be efficiently controlled to suit the needs of a particular mobile device. Combining the TC7710 with an external thermistor helps improve charging system safety.
|Charging method||Constant-current, constant-voltage (CCCV)|
|Input voltage range||4.35 to 6.5 V|
|Charge current||300 to 2000 mA (100 mA/step)|
|Charge voltage||3.46 to 4.72 V (10 mV/step)|
|Precharge current (initial)||100 mA||200 mA|
|Charging enable (EN) pin*2||Active-Low||Active-High|