• High Efficiency 4.5-A Switch Mode Charger
  • 92% Charge Efficiency at 2 A, 90% at 4 A
  • Accelerate Charge Time by Battery Path Impedance Compensation
• Compatible with MaxLife Technology for Faster Charging When Used in Conjunction With bq27531
• Highest Battery Discharge Efficiency with 12-mΩ Battery Discharge MOSFET up to 9-A Discharge Current
• Single Input USB-compliant/Adapter Charger
  • USB Host or Charging Port D+/D- Detection Compatible to USB Battery Charger Spec 1.2
  • 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
• 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

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

The bq24190, bq24192, and bq24192I are 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.