深圳市中立信电子科技有限公司

1 Features

• High Efficiency 4.5-A Switch Mode Charger – Integrated Current Sensing

– 92% Charge Efficiency at 2 A, 90% at 4 A – Bootstrap Diode

– Accelerate Charge Time by Battery Path – Internal Loop Compensation

Impedance Compensation • Safety

• Compatible with MaxLife Technology for Faster – Battery Temperature Sensing and Charging

Charging When Used in Conjunction With Safety Timer

bq27531

– Thermal Regulation and Thermal Shutdown

• Highest Battery Discharge Efficiency with 12-mΩ – Input System Over-Voltage Protection Battery Discharge MOSFET up to 9-A Discharge

– MOSFET Over-Current Protection Current

• Charge Status Outputs for LED or Host Processor • Single Input USB-compliant/Adapter Charger

• Low Battery Leakage Current and Support

– USB Host or Charging Port D+/D- Detection Shipping Mode Compatible to USB Battery Charger Spec 1.2

• 4.00 mm x 4.00 mm VQFN-24 Package

– Input Voltage and Current Limit Supports

USB2.0 and USB3.0 2 Applications

– Input Current Limit: 100 mA, 150 mA, 500 mA,

• Tablet PC and Smart Phone 900 mA, 1.2 A, 1.5 A, 2 A and 3 A

• Portable Audio Speaker • 3.9-V to 17-V Input Operating Voltage Range

• Portable Media Players – Support All Kinds of Adapter with Input Voltage

DPM Regulation • Internet Devices

• USB OTG 5 V at 1.3-A Synchronous Boost

Converter Operation 3 Description

The bq24190, bq24192, and bq24192I are highly–

93% 5-V Boost Efficiency at 1 A

integrated switch-mode battery charge management

• Narrow VDC (NVDC) Power Path Management and system power path management devices for

– Instant-on Works with No Battery or Deeply single cell Li-Ion and Li-polymer battery in a wide

Discharged Battery range of tablet and other portable devices.