1 Features

• High-efficiency switched-mode charger with

separate power path control

– Instantly start up system from a deeply

discharged battery or no battery

• Compatible with MaxLife™ technology for faster

charging when used in conjunction with BQ27530

• Dual input, integrated FET charger for up to 2.5-A

charging

– 20-V input rating, with overvoltage protection

(OVP)

• 6.5 V for USB input up to 1.5 A

• 10.5 V for IN input (BQ24160, BQ24160A,

BQ24161, BQ24163) up to 2.5 A

• 6.5 V for IN input (BQ24168) up to 2.5 A

• Safe and accurate battery management functions

– 1% battery regulation accuracy

– 10% charge current accuracy

• Charge parameters programmed using I2C

interface

• Voltage-based, NTC monitoring input

– JEITA compatible (BQ24160, BQ24160A,

BQ24161B, BQ24163, BQ24168)

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

or 4-mm × 4-mm VQFN-24 packages

2 Applications

• Handheld products

• Portable media players

• Portable equipment

• Netbook and portable internet devices

3 Description

The BQ24160, BQ24160A, BQ24161, BQ24161B,

BQ24163, and BQ24168 are highly integrated singlecell

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 highefficiency

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.