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MAX8922L,pdf datasheet (linear

消耗积分:5 | 格式:rar | 大小:433 | 2009-11-16

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The MAX8922L linear battery charger safely charges a single-cell lithium-ion (Li+) battery. Charging rate is optimized to accommodate the thermal characteristics of a given application. There is no need to reduce the maximum charge current at the worst-case charger power dissipation. Charging is optimized for a single Li+ cell using a control algorithm that includes low-battery precharging, voltage and current-limited fast charging, and top-off charging, while continuously monitoring for input overvoltage and device die-temperature conditions. The fast-charge current and top-off current thresholds are programmable by a simple 1-Wire® serial interface. The charger status and valid input power are indicated by two open-drain outputs (active-low CHG and active-low POK).
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