SLUSA78C July   2010  – July 2015

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 Automatic Internal Soft-Start Charger Current
      2. 8.3.2 High-Accuracy Current-Sense Amplifier
      3. 8.3.3 Charge Timeout
      4. 8.3.4 Input Overcurrent Protection (ACOC)
      5. 8.3.5 Charge Overcurrent Protection (CHGOCP)
      6. 8.3.6 Battery Overvoltage Protection (BATOVP)
      7. 8.3.7 Battery Shorted to Ground (BATLOWV)
      8. 8.3.8 Thermal Shutdown Protection (TSHUT)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Enable and Disable Charging
      2. 8.4.2 Continuous Conduction Mode (CCM)
      3. 8.4.3 Discontinuous Conduction Mode (DCM)
    5. 8.5 Programming
      1. 8.5.1  SMBus Interface
      2. 8.5.2  Battery-Charger Commands
      3. 8.5.3  Setting Charger Options
      4. 8.5.4  Setting the Charge Current
      5. 8.5.5  Setting the Charge Voltage
      6. 8.5.6  Setting Input Current
      7. 8.5.7  Adapter Detect and ACOK Output
      8. 8.5.8  Converter Operation
      9. 8.5.9  EMI Switching Frequency Adjust
      10. 8.5.10 Inductor Short, MOSFET Short Protection
      11. 8.5.11 Independent Comparator
  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 Negative Output Voltage Protection
        2. 9.2.2.2 Inductor Selection
        3. 9.2.2.3 Input Capacitor
        4. 9.2.2.4 Output Capacitor
        5. 9.2.2.5 Power MOSFETs Selection
        6. 9.2.2.6 Input Filter Design
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 IC Design Guideline
    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 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Related Links
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 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 Device Support

12.1.1 Third-Party Products Disclaimer

TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.

12.2 Documentation Support

12.2.1 Related Documentation

For related documentation, see the following:

  • bq24707EVM for Multicell, Synchronous, Switch-Mode Charger With SMBus Interface, SLUU445
  • Quad Flatpack No-Lead Logic Packages, SCBA017
  • QFN/SON PCB Attachment, SLUA271

12.3 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 10. Related Links

PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY
bq24707 Click here Click here Click here Click here Click here
bq24707A Click here Click here Click here Click here Click here

12.4 Community Resources

The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.

    TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
    Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.

12.5 Trademarks

PowerPAD, E2E are trademarks of Texas Instruments.

All other trademarks are the property of their respective owners.

12.6 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.

12.7 Glossary

SLYZ022 — TI Glossary.

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