1 Features
• High Efficiency 2.5-A Switch Mode Charger
– 92% Charge Efficiency at 2 A
• Highest Battery Discharge Efficiency with 12-mΩ
Battery Discharge MOSFET up to 9-A Discharge
Current
• Single Input USB-compliant/Adapter Charger
– Input Voltage and Current Limit Supports
USB2.0 and USB3.0
– Input Current Limit: 100 mA, 150 mA, 500 mA,
900 mA, 1.2 A, 1.5 A, 2 A and 3 A
• 3.9-V to 17-V Input Operating Voltage Range
– Support All Kinds of Adapter with Input Voltage
DPM Regulation
• USB OTG 5 V at 1.3-A Synchronous Boost
Converter Operation
– 93% 5-V Boost Efficiency at 1 A
• Narrow VDC (NVDC) Power Path Management
– Instant-on Works with No Battery or Deeply
Discharged Battery
– Ideal Diode Operation in Battery Supplement
Mode Li•
1.5-MHz Switching Frequency for Low Profile
Inductor
• Autonomous Battery Charging with or without
Host Management
– Battery Charge Enable
– Battery Charge Preconditioning
– Charge Termination and Recharge
• High Accuracy (0°C to 125°C)
– ±0.5% Charge Voltage Regulation
– ±7% Charge Current Regulation
– ±7.5% Input Current Regulation
– ±2% Output Regulation in Boost Mode
• High Integration
– Power Path Management
– Synchronous Switching MOSFETs
– Integrated Current Sensing
– Bootstrap Diode
– Internal Loop Compensation
• Safety
– Battery Temperature Sensing and Charging
Safety Timer
– Thermal Regulation and Thermal Shutdown
– Input System Over-Voltage Protection
– MOSFET Over-Current Protection
• Charge Status Outputs for LED or Host Processor
• Low Battery Leakage Current and Support
Shipping Mode
• 4.00 mm x 4.00 mm VQFN-24 Package

2 Applications
• Tablet PC and Smart Phone
• Portable Audio Speaker
• Portable Media Players
• Internet Devices

3 Description
The bq24196 is highly-integrated switch-mode battery
charge management and system power path
management devices for single cell Li-Ion and Li•
polymer battery in a wide range of tablet and other
portable devices.