BQ24166RGER Lithium Ion Battery Power Path Management IC Separate Power Path Control

BQ24166RGER Power Path Management IC Battery Management Dual-In,Sgl Cell Sw mode LiIon Batt Chrg

1 FEATURES

• 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

2 APPLICATIONS

• Handheld Products
• Portable Media Players
• Portable Equipment
• Netbook and Portable Internet Devices

3 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.