MAX1811 USB供电、Li+充电器芯片(应用电路)

MAX1811 USB供电、Li+充电器芯片(应用电路)

The charger uses an internal FET to deliver up to 500mA charging current to the battery. The device can be configured for either a 4.1V or 4.2V battery, using the SELV input. The SELI input sets the charge current to either 100mA or 500mA. An open-drain output (active-low CHG) indicates charge status.The MAX1811 has preconditioning that soft-starts a near-dead battery cell before charging. Other safety features include continuous monitoring of voltage and current and initial checking for fault conditions before charging.The MAX1811 is available in a small 1.4W thermally enhanced 8-pin SO package.