SLUSF65 October   2023 BQ25185

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Description (continued)
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Thermal Information
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 Battery Charging Process
        1. 8.1.1.1 Trickle Charge
        2. 8.1.1.2 Pre-Charge
        3. 8.1.1.3 Fast Charge
        4. 8.1.1.4 ISET Pin Detection
        5. 8.1.1.5 Termination
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Input Voltage Based Dynamic Power Management (VINDPM)
      2. 8.3.2  Dynamic Power Path Management Mode (DPPM)
      3. 8.3.3  Battery Supplement Mode
      4. 8.3.4  Sleep Mode
      5. 8.3.5  SYS Regulation
      6. 8.3.6  ILIM/VSET Control
      7. 8.3.7  Protection Mechanisms
        1. 8.3.7.1 Input Overvoltage Protection
        2. 8.3.7.2 Battery Undervoltage Lockout
        3. 8.3.7.3 Battery Overcurrent Protection
        4. 8.3.7.4 System Overvoltage Protection
        5. 8.3.7.5 System Short Protection
        6. 8.3.7.6 Thermal Protection and Thermal Regulation
        7. 8.3.7.7 Safety Timer
      8. 8.3.8  Pushbutton Wake and Reset Input
        1. 8.3.8.1 Pushbutton Long Button Press Function - Factory mode
      9. 8.3.9  External NTC Monitoring (TS)
        1. 8.3.9.1 TS Biasing and Function
      10. 8.3.10 Status Pins
    4. 8.4 Device Functional Modes
  10. 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 Input Current and Battery Regulation Voltage - ILIM/VSET
        2. 9.2.2.2 Fast Charge Current- ISET
        3. 9.2.2.3 Recommended Passive Components
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

8.3.7.7 Safety Timer

At the beginning of each charge cycle mode (Precharge or Fast Charge), the device starts the respective mode safety timer. If charging has not terminated before the programmed safety time, tMAXCHG expires or the device does not exit the precharge mode before tPRECHG expires, charging is disabled. The precharge safety timer, tPRECHG, is 25% of tMAXCHG. When a safety timer fault occurs For the device, the STATx pins update to show a non-recoverable fault. The /CE pin or the input power must be toggled in order to clear the safety timer.