MAX1508ETA+T

MAXIM INTEGRATED PRODUCTS  MAX1508ETA+T  芯片, 电池充电器

The is a linear Li+ battery charger with integrated pass FET, thermal regulation and ACOK flag in 8 pin TDFN package. This device is an intelligent, stand-alone constant-current, constant-voltage CCCV, thermally regulated linear charger for a single-cell lithium-ion Li+ battery. It is integrated with current-sense circuit, MOS pass element, thermal-regulation circuitry and also eliminates the reverse-blocking Schottky diode to create the simplest and smallest charging solution for hand-held equipment. MAX1508 function as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge and full-charge indication. It disables charging when the input voltage exceeds +7V to protect against faulty AC adapters.

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Stand-alone linear 1-cell Li+ battery charger

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No external FET, reverse blocking diode or current-sense resistor required

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Programmable fast charge current 0.8A max

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Charge current monitor for fuel gauging

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Low dropout voltage of 13mV at 0.425A

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Input power-source detection output active-low ACOK

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Soft-start limits inrush current

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Operating temperature range from -40°C to 85°C