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.