SLUSF65 October   2023 BQ25185

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Revision History
  6. Description (continued)
  7. Pin Configuration and Functions
  8. 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. 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. 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

Input Overvoltage Protection

The input overvoltage protection protects the device and downstream components connected to SYS, and BAT against damage from overvoltage on the input supply. When VIN > V­IN_OVP, a VIN overvoltage condition is determined to exist. During the VIN overvoltage condition, the device turns the battery discharge FET on,the STAT1 and STAT2 pins update to reflect a recoverable fault (STAT1 = LOW, STAT2 = HIGH). Once the VIN overvoltage condition is removed, the STAT1 and STAT2 pins update to normal operation once the startup routine has finished due to a power good VIN detection . Thereafter VIN powergood condition is determined if VIN > VBAT + VSLEEP.