BQ24295RGER Power Path Management IC Battery Management I2C Cntrl 3A SGL Cell USB Charger

1 Features

• 90% High Efficiency Switch Mode 3-A Charger

• 3.9-V to 6.2-V Single Input USB-Compliant Charger with 6.4-V Over-Voltage Protection

  • – USB Host or Charging Port D+/D- Detection Compatible to USB Battery Charger Spec (BC1.2)

  • – Support Non-Standard 2-A/1-A Adapters Detection

  • – Input Voltage and Current Limit Supports USB2.0 and USB 3.0

  • – Input Current Limit: 100 mA, 150 mA, 500 mA, 900 mA, 1 A, 1.5 A, 2 A, and 3 A

• Synchronous Boost Converter in Battery Boost Mode with

  • – Adjustable Output 4.55 V – 5.5 V at 1.5 A

  • – 90% 5.1-V Boost Mode Efficiency

  • – Fast OTG Startup (22 ms Typ)

• Narrow VDC (NVDC) Power Path Management

  • – Instant System On with No Battery or Deeply Discharged Battery

  • – Ideal Diode Operation in Battery Supplement Mode

• 1.5-MHz Switching Frequency for Low Profile 1.2- mm Inductor

• I2C Port for Optimal System Performance and Status Reporting

• Autonomous Battery Charging with or without Host Management

  • – Battery Charge Enable

  • – Battery Charge Preconditioning

  • – Charge Termination and Recharge

• High Accuracy

  • – ±0.5% Charge Voltage Regulation

  • – ±7% Charge Current Regulation

  • – ±7.5% Input Current Regulation

  • – ±3% Output Voltage Regulation in Boost Mode

• High Integration

  • – Power Path Management

  • – Synchronous Switching MOSFETs

  • – Integrated Current Sensing

  • – Bootstrap Diode

  • – Internal Loop Compensation

• Safety

• – Battery Temperature Sensing for Charging and Discharging in Boost Mode

• – Battery Charging Safety Timer

• – Thermal Regulation and Thermal Shutdown

• – Input and System Over-Voltage Protection

• – MOSFET Over-Current Protection

  • Charge Status Outputs for LED or Host Processor

  • Maximum Power Tracking Capability by Input Voltage Regulation

  • 20-μA Low Battery Leakage Current and Support Shipping Mode

  • 4mm x 4mm VQFN-24 Package

2 Applications

• Power Bank for Smartphone, Tablet

• Portable Media Players

• Internet Devices

3 Description

The bq24295 is a highly-integrated switch-mode battery charge management and system power path management devices for 1 cell Li-Ion and Li-polymer battery in a wide range of power bank, tablet and other portable device applications.

Device Information