SLUSAO0G November   2011  – December 2015

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Application Schematic
  5. Revision History
  6. Device Comparison Table
  7. Pin Configuration and Functions
  8. Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 Handling Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Typical Characteristics
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Charge Mode Operation
        1. 9.3.1.1 Charge Profile
        2. 9.3.1.2 PWM Controller in Charge Mode
      2. 9.3.2  Battery Charging Process
      3. 9.3.3  Battery Detection
      4. 9.3.4  Dynamic Power Path Management (DPPM)
      5. 9.3.5  Input Source Connected
      6. 9.3.6  Battery Only Connected
      7. 9.3.7  Battery Discharge FET (BGATE)
      8. 9.3.8  DEFAULT Mode
      9. 9.3.9  Safety Timer and Watchdog Timer (bq24160/ bq24161/ bq24161B/ bq24163 only)
      10. 9.3.10 D+, D- Based Adapter Detection for the USB Input (D+, D-, bq24160/0A/3)
      11. 9.3.11 USB Input Current Limit Selector Input (PSEL, bq24161/ 161B/ 168 only)
      12. 9.3.12 Hardware Chip Disable Input (CD)
      13. 9.3.13 LDO Output (DRV)
      14. 9.3.14 External NTC Monitoring (TS)
      15. 9.3.15 Thermal Regulation and Protection
      16. 9.3.16 Input Voltage Protection in Charge Mode
        1. 9.3.16.1 Sleep Mode
        2. 9.3.16.2 Input Voltage Based DPM
        3. 9.3.16.3 Bad Source Detection
        4. 9.3.16.4 Input Overvoltage Protection
        5. 9.3.16.5 Reverse Boost (Boost Back) Prevention Circuit
      17. 9.3.17 Charge Status Outputs (STAT, INT)
      18. 9.3.18 Good Battery Monitor
    4. 9.4 Device Functional Modes
    5. 9.5 Programming
      1. 9.5.1 Serial Interface Description
        1. 9.5.1.1 F/S Mode Protocol
    6. 9.6 Register Maps
      1. 9.6.1 Status/Control Register (READ/WRITE)
      2. 9.6.2 Battery/ Supply Status Register (READ/WRITE)
      3. 9.6.3 Control Register (READ/WRITE)
      4. 9.6.4 Control/Battery Voltage Register (READ/WRITE)
      5. 9.6.5 Vender/Part/Revision Register (READ only)
      6. 9.6.6 Battery Termination/Fast Charge Current Register (READ/WRITE)
      7. 9.6.7 VIN-DPM Voltage/ DPPM Status Register
      8. 9.6.8 Safety Timer/ NTC Monitor Register (READ/WRITE)
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Output Inductor and Capacitor Selection Guidelines
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
    1. 11.1 Requirements for SYS Output
    2. 11.2 Requirements for Charging
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Community Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

Features

  • High-Efficiency Switched-Mode Charger with Separate Power Path Control
    • Instantly Start Up System from a Deeply Discharged Battery or No Battery
  • Compatible with MaxLife™ Technology for Faster Charging When Used in Conjunction With bq27530
  • Dual Input, Integrated FET Charger for up to 2.5-A Charging
    • 20-V input rating, with Overvoltage Protection (OVP)
      • 6.5 V for USB Input up to 1.5 A
      • 10.5 V for IN input (bq24160, bq24160A, bq24161, bq24163) up to 2.5 A
      • 6.5 V for IN input (bq24168) up to 2.5 A
  • Safe and Accurate Battery-Management Functions
    • 1% Battery Regulation Accuracy
    • 10% Charge Current Accuracy
  • Charge Parameters Programmed Using I2C Interface
  • Voltage-Based, NTC Monitoring Input
    • JEITA Compatible (bq24160, bq24160A, bq24161B, bq24163, bq24168)
  • Available in small 2.8-mm × 2.8-mm 49-ball WCSP or 4-mm × 4-mm VQFN-24 Packages

Applications

  • Handheld Products
  • Portable Media Players
  • Portable Equipment
  • Netbook and Portable Internet Devices

Description

The bq24160, bq24160A, bq24161, bq24161B, bq24163, and bq24168 are highly integrated single-cell Li-Ion battery charger and system power path management devices targeted for space-limited, portable applications with high-capacity batteries. The single-cell charger has dual inputs which allow operation from either a USB port or a higher-power input supply (that is, AC adapter or wireless charging input) for a versatile solution. The two inputs are fully isolated from each other and are easily selectable using the I2C interface.

The power path management feature allows the bq2416xx to power the system from a high-efficiency DC-DC converter while simultaneously and independently charging the battery. The power-path management architecture enables the system to run with a defective or absent battery pack and enables instant system turnon even with a totally discharged battery or no battery.

Device Information

PART NUMBER PACKAGE BODY SIZE (NOM)
bq2416xx VQFN (24) 4.00 mm × 4.00 mm
DSBGA (49) 2.80 mm × 2.80 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Application Schematic

bq24160 bq24160A bq24161 bq24161B bq24163 bq24168 app_sch_FP_lusao0.gif