SLUS821J October   2008  – May 2017

PRODUCTION DATA.  

  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 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 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 Undervoltage Lockout
      2. 8.3.2 Power On
      3. 8.3.3 Power-Path Management
        1. 8.3.3.1 Input Source Connected - Adapter or USB
          1. 8.3.3.1.1 Input Voltage Dynamic Power Management, (VIN_DPM)
          2. 8.3.3.1.2 Dynamic Power Path Management (DPPM)
          3. 8.3.3.1.3 Battery Supplement Mode
        2. 8.3.3.2 Input Source Not Connected
      4. 8.3.4 Thermal Regulation and Thermal Shutdown
      5. 8.3.5 Battery Pack Temperature Monitoring
        1. 8.3.5.1 Modifying / Extending the Allowable Temperature Range for Charging
    4. 8.4 Device Functional Modes
      1. 8.4.1 Battery Charging
        1. 8.4.1.1 Charge Current Translator
        2. 8.4.1.2 Battery Detection and Recharge
        3. 8.4.1.3 Termination Disable (TD Input, bq24230)
        4. 8.4.1.4 Adjustable Termination Threshold (ITERM Input, bq24232)
        5. 8.4.1.5 Dynamic Charge Timers (TMR Input)
        6. 8.4.1.6 Status Indicators (PGOOD, CHG)
          1. 8.4.1.6.1 Timer Fault
      2. 8.4.2 Explanation of Deglitch Times and Comparator Hysteresis
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Using The bq24232 In A Stand-Alone Charger Application
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Calculations
            1. 9.2.1.2.1.1 Program The Fast-Charge Current (ISET):
            2. 9.2.1.2.1.2 Program The Input Current Limit (ILIM)
            3. 9.2.1.2.1.3 Program The Termination Current Threshold (ITERM, bq24232)
            4. 9.2.1.2.1.4 Program 7.5-hour Fast-Charge Safety Timer (TMR)
          2. 9.2.1.2.2 TS Function
          3. 9.2.1.2.3 CHG and PGOOD
          4. 9.2.1.2.4 Selecting In, Out, and BAT Pin Capacitors
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Using The bq24230 in a Host Controlled Charger Application
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Requirements for OUT Output
    2. 10.2 USB Sources and Standard AC Adapters
    3. 10.3 Half-Wave Adapters
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Package
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

12 Device and Documentation Support

12.1 Documentation Support

12.1.1 Related Documentation

Application report QFN/SON PCB Attachment, SLUA271

12.2 Related Links

The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy.

Table 5. Related Links

PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY
bq24230 Click here Click here Click here Click here Click here
bq24232 Click here Click here Click here Click here Click here

12.3 Trademarks

Bluetooth is a trademark of Bluetooth SIG, Inc..

All other trademarks are the property of their respective owners.

12.4 Electrostatic Discharge Caution

esds-image

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

12.5 Glossary

SLYZ022 — TI Glossary.

This glossary lists and explains terms, acronyms, and definitions.