BQ24161YFFR

2.5A ，双输入单节开关模式锂离子电池充电器与电源路径 2.5A, Dual-Input, Single Cell Switchmode Li-Ion Battery Charger with Power Path

DESCRIPON

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 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.

FEATURES

• High-Efficiency Switch Mode Charger with Separate Power Path Control

– Make a GSM Call with a Deeply Discharged Battery or No Battery

– Instantly Start Up System from a Deeply Discharged Battery or No Battery

• Dual Input Charger

• Highly Integrated Battery N-Channel MOSFET Controller for Power Path Management

– 20 V input rating, with Overvoltage Protection OVP

– 6.5 V for USB Input

– 10.5 V for IN input bq24160, bq24160A, bq24161, bq24163

– 6.5 V for IN input bq24168

– Integrated FETs for Up to 2.5A Charge Rate

– Up to 2.5 A from IN Input input current limit

– Up to 1.5 A from USB Input input current limit

• Safe and Accurate Battery Management Functions

– 0.5% Battery Regulation Accuracy

– 10% Charge Current Accuracy

• Charge Parameters Programmed Using I2C™ Interface

– Charge Voltage, Current, Termination Threshold, Input Current Limit, VINDPM Threshold, Watchdog and Safety Timers disabled for bq24160A and bq24168

• Voltage Based, NTC Monitoring Input

– JEITA Compatible bq24160, bq24160A, bq24161B, bq24163, bq24168

• Thermal Regulation Protection for Output Current Control

• Low Battery Leakage Current, BAT Short Circuit Protection

• Soft-Start Feature to Reduce Inrush Current

• Thermal Shutdown and Protection

• Available in small 2.8mm × 2.8mm 49-ball WCSP or 4mm × 4mm QFN-24 Packages

APPLICATIONS

• Handheld Products

• Portable Media Players

• Portable Equipment

• Netbook and Portable Internet Devices