1FEATURES

• High-Efficiency Switch Mode Charger with

Separate Power Path Control

– Make a GSM Call with a Deeply Discharged

Battery or No Battery

– Instantly Startup System from a Deeply

Discharged Battery or No Battery

• Dual Input Charger

– 20V Input Rating, With Over-Voltage

Protection (OVP)

– 6.5V for USB Input

– 10.5V for IN Input

– Integrated FETs for Up to 2.5A Charge Rate

– Up to 2.5A from IN Input

– Up to 1.5A from USB Input

• Highly Integrated Battery N-Channel MOSFET

Controller for Power Path Management

• Safe and Accurate Battery Management

Functions

– 0.5% Battery Regulation Accuracy

– 10% Charge Current Accuracy

• Adjustable Charge Current, Input Current

Limit, and VINDPM Threshold (for IN input)

• Easy JEITA Implementation

– Charge Parameter Selector Inputs (CE1,

CE2) for (bq24165)

• Voltage-based, NTC Monitoring Input (TS)

– Standard Temperature Range (bq24166)

– JEITA Compatible (bq24167)

• 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 x 2.8mm 49-ball

WCSP or 4mm x 4mm QFN-24 Packages

APPLICATIONS

• Handheld Products

• Portable Media Players

• Portable Equipment

• Netbook and Portable Internet Devices

DESCRIPTION

The bq24165, bq24166 and bq24167 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 (i.e., AC adapter or

wireless charging input) for a versatile solution. The two inputs are fully isolated from each other and are

managed by the bq24165/166/167 with the IN input

having precedence.