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  • BQ2416xx 2.5-A, Dual-Input, Single-Cell Switched-Mode Li-Ion Battery Charger with Power Path Management and I2C Interface

    • SLUSAO0H November   2011  – July 2022 BQ24160 , BQ24160A , BQ24161 , BQ24161B , BQ24163 , BQ24168

      PRODUCTION DATA  

  • CONTENTS
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  • BQ2416xx 2.5-A, Dual-Input, Single-Cell Switched-Mode Li-Ion Battery Charger with Power Path Management and I2C Interface
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 Handling Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Charge Mode Operation
        1. 8.3.1.1 Charge Profile
        2. 8.3.1.2 PWM Controller in Charge Mode
      2. 8.3.2  Battery Charging Process
      3. 8.3.3  Battery Detection
      4. 8.3.4  Dynamic Power Path Management (DPPM)
      5. 8.3.5  Input Source Connected
      6. 8.3.6  Battery Only Connected
      7. 8.3.7  Battery Discharge FET (BGATE)
      8. 8.3.8  DEFAULT Mode
      9. 8.3.9  Safety Timer and Watchdog Timer (BQ24160/BQ24161/BQ24161B/BQ24163 only)
      10. 8.3.10 D+, D– Based Adapter Detection for the USB Input (D+, D–, BQ24160/0A/3)
      11. 8.3.11 USB Input Current Limit Selector Input (PSEL, BQ24161/161B/168 only)
      12. 8.3.12 Hardware Chip Disable Input (CD)
      13. 8.3.13 LDO Output (DRV)
      14. 8.3.14 External NTC Monitoring (TS)
      15. 8.3.15 Thermal Regulation and Protection
      16. 8.3.16 Input Voltage Protection in Charge Mode
        1. 8.3.16.1 Sleep Mode
        2. 8.3.16.2 Input Voltage Based DPM
        3. 8.3.16.3 Bad Source Detection
        4. 8.3.16.4 Input Overvoltage Protection
        5. 8.3.16.5 Reverse Boost (Boost Back) Prevention Circuit
      17. 8.3.17 Charge Status Outputs (STAT, INT)
      18. 8.3.18 Good Battery Monitor
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
      1. 8.5.1 Serial Interface Description
        1. 8.5.1.1 F/S Mode Protocol
    6. 8.6 Register Maps
      1. 8.6.1 Status/Control Register (READ/WRITE)
      2. 8.6.2 Battery/ Supply Status Register (READ/WRITE)
      3. 8.6.3 Control Register (READ/WRITE)
      4. 8.6.4 Control/Battery Voltage Register (READ/WRITE)
      5. 8.6.5 Vender/Part/Revision Register (READ only)
      6. 8.6.6 Battery Termination/Fast Charge Current Register (READ/WRITE)
      7. 8.6.7 VIN-DPM Voltage/ DPPM Status Register
      8. 8.6.8 Safety Timer/ NTC Monitor Register (READ/WRITE)
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Output Inductor and Capacitor Selection Guidelines
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Requirements for SYS Output
    2. 10.2 Requirements for Charging
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
      1.      Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE
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DATA SHEET

BQ2416xx 2.5-A, Dual-Input, Single-Cell Switched-Mode Li-Ion Battery Charger with Power Path Management and I2C Interface

1 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

2 Applications

  • Handheld products
  • Portable media players
  • Portable equipment
  • Netbook and portable internet devices

3 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(1) 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 data sheet.
GUID-62642831-C4F9-4B2A-89E5-9310190BC804-low.gif Application Schematic

4 Revision History

Changes from Revision G (November 2015) to Revision H (July 2022)

  • Changed ITERM specificationGo

Changes from Revision F (July 2014) to Revision G (November 2015)

  • Deleted hyperlink to unpublished application note SLUA727.Go

Changes from Revision E (November 2013) to Revision F (January 2014)

  • Added Handling Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information sectionGo
  • Changed the Ordering Information table to the Device Comparison TableGo
  • Changed to VBAD_SOURCE include values for "During Bad Source Detection"Go
  • Changed the Functional Block Diagram. Changed the device numbers above D+/D- and PSELGo
  • Changed the PWM Controller in Charge Mode section to include the soft-start functionGo
  • Changed the Battery Charging Process section. New text added starting with "The BQ2416xx monitors the charging current.."Go
  • Changed the Input Source Connected sectionGo
  • Changed the Input Source Connected sectionGo
  • Added the Reverse Boost (Boost Back) Prevention Circuit sectionGo

Changes from Revision D (November 2012) to Revision E (November 2013)

  • Added Feature: Compatible with MaxLife Technology for Faster Charging When Used in Conjunction with BQ27530Go
  • Changed From: QFN-24 Package To: VQFN-24 Package throughout the data sheetGo

Changes from Revision C (October 2012) to Revision D (November 2012)

  • Changed the Ordering Information table to include the WSCP package for BQ24161BRGR and BQ24161BYFFGo

Changes from Revision B (September 2012) to Revision C (October 2012)

  • Changed the Ordering Information table to include BQ24160AGo

Changes from Revision A (March 2012) to Revision B (September 2012)

  • Changed the Ordering Information table to include BQ24161BGo
  • Changed text From: "battery FET (Q6)" To: "battery FET (Q4)" in the Battery Only Connected sectionGo
  • Changed From: VWARM < VTS < VHOT To: VWARM > VTS > VHOT, and Changed From: VCOLD < VTS < VCOOL To: VCOLD > VTS > VCOOL in the External NTC Monitoring (TS) sectionGo
  • Changed Figure 11-1 Go

Changes from Revision * (November 2011) to Revision A (March 2012)

  • Changed the USB Pin numbers in the YFF pachkage for bq24160/3 From: A5-A6 To: A5-A7Go
  • Changed VBATREG - Voltage regulation accuracy Go
  • Changed Figure 9-1 Go
  • Changed Figure 9-2 Go

 
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