BQ24195RGER Power Path Management IC Battery Management I2C Cntrl 2.5A/4.5A

1 Features

• High Efficiency Switch Mode Charger – – 2.5-A (bq24195L) or 4.5-A (bq24195) Fast –

Integrated Current Sensing

Bootstrap Diode

Charging
– 92% Charge Efficiency at 2 A, 90% at 4 A

• Synchronous Boost Converter in Battery Boost Mode

  • – 5.1Vat1A(bq24195L)or5.1Vat2.1A (bq24195)

  • – 94% 5.1-V Boost Efficiency at 1 A, 91% at 2.1 A

• 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

• 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

• – 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 QFN-24 Package

2 Applications

• Power Bank for Smartphone, Tablet

• Tablet PC and Smart Phone

• Portable Audio Speaker

• Portable Media Players

• Internet Devices

   

3 Description

The bq24195L, bq24195 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 power bank, tablet and other portable devices.

Device Information