BQ24161

具有电源路径的 2.5A 双输入单节开关模式锂离子电池充电器

The bq24160, bq24160A, bq24161, bq24161B, bq24163, and bq24168 are highly integrated single-cell Li-Ion battery charger and system power path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has dual inputs which allow operation from either a USB port or a higher-power input supply that is, AC adapter or wireless charging input for a versatile solution. The two inputs are fully isolated from each other and are easily selectable using the I2C interface.

The power path management feature allows the bq2416xx to power the system from a high-efficiency DC-DC converter while simultaneously and independently charging the battery. The power-path management architecture enables the system to run with a defective or absent battery pack and enables instant system turnon even with a totally discharged battery or no battery.

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High-Efficiency Switched-Mode Charger with

Separate Power Path Control

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Instantly Start Up System from a Deeply

Discharged Battery or No Battery

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Compatible with MaxLife™ Technology for Faster

Charging When Used in Conjunction With

bq27530

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Dual Input, Integrated FET Charger for up to 2.5-A

Charging

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20-V input rating, with Overvoltage Protection

OVP

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6.5 V for USB Input up to 1.5 A

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10.5 V for IN input bq24160, bq24160A,

bq24161, bq24163 up to 2.5 A

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6.5 V for IN input bq24168 up to 2.5 A

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Safe and Accurate Battery-Management

Functions

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1% Battery Regulation Accuracy

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10% Charge Current Accuracy

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Charge Parameters Programmed Using I2C

Interface

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Voltage-Based, NTC Monitoring Input

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JEITA Compatible bq24160, bq24160A,

bq24161B, bq24163, bq24168

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Available in small 2.8-mm × 2.8-mm 49-ball

WCSP or 4-mm × 4-mm VQFN-24 Packages