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

5 Device Comparison Table

PART NUMBER(1) VOVP VOUT(REG) VDPM OPTIONAL FUNCTION MARKING
bq24230 6.6 V 4.4 V VO(REG) – 100 mV TD CGN
bq24232 10.5 V 4.4 V VO(REG) – 100 mV ITERM NXK
(1) This product is RoHS compatible, including a lead concentration that does not exceed 0.1% of total product weight, and is suitable for use in specified lead-free soldering processes. In addition, this product uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight.