SLUSDL9 June   2019 BQ25125

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Simplified Schematic
  4. Revision History
  5. Description (continued)
  6. Pin Configuration and Functions
    1.     Pin Functions
  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. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Ship Mode
        1. 8.3.1.1 Ship Mode Entry and Exit
      2. 8.3.2  High Impedance Mode
      3. 8.3.3  Active Battery Only Connected
      4. 8.3.4  Voltage Based Battery Monitor
      5. 8.3.5  Sleep Mode
      6. 8.3.6  Input Voltage Based Dynamic Power Management (VIN(DPM))
      7. 8.3.7  Input Overvoltage Protection and Undervoltage Status Indication
      8. 8.3.8  Battery Charging Process and Charge Profile
      9. 8.3.9  Battery Supplement Mode
      10. 8.3.10 Default Mode
      11. 8.3.11 Termination and Pre-Charge Current Programming by External Components (IPRETERM)
      12. 8.3.12 Input Current Limit Programming by External Components (ILIM)
      13. 8.3.13 Charge Current Programming by External Components (ISET)
      14. 8.3.14 Safety Timer
      15. 8.3.15 External NTC Monitoring (TS)
      16. 8.3.16 Thermal Protection
      17. 8.3.17 Typical Application Power Dissipation
      18. 8.3.18 Status Indicators (PG and INT)
      19. 8.3.19 Chip Disable (CD)
      20. 8.3.20 Buck (PWM) Output
      21. 8.3.21 Load Switch / LDO Output and Control
      22. 8.3.22 Manual Reset Timer and Reset Output (MR and RESET)
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
      1. 8.5.1 Serial Interface Description
      2. 8.5.2 F/S Mode Protocol
    6. 8.6 Register Maps
      1. 8.6.1  Status and Ship Mode Control Register
        1. Table 12. Status and Ship Mode Control Register
      2. 8.6.2  Faults and Faults Mask Register
        1. Table 13. Faults and Faults Mask Register
      3. 8.6.3  TS Control and Faults Masks Register
        1. Table 14. TS Control and Faults Masks Register, Memory Location 0010
      4. 8.6.4  Fast Charge Control Register
        1. Table 15. Fast Charge Control Register
      5. 8.6.5  Termination/Pre-Charge and I2C Address Register
        1. Table 16. Termination/Pre-Charge and I2C Address Register
      6. 8.6.6  Battery Voltage Control Register
        1. Table 17. Battery Voltage Control Register
      7. 8.6.7  SYS VOUT Control Register
        1. Table 18. SYS VOUT Control Register
      8. 8.6.8  Load Switch and LDO Control Register
        1. Table 20. Load Switch and LDO Control Register
      9. 8.6.9  Push-button Control Register
        1. Table 21. Push-button Control Register
      10. 8.6.10 ILIM and Battery UVLO Control Register
        1. Table 22. ILIM and Battery UVLO Control Register, Memory Location 1001
      11. 8.6.11 Voltage Based Battery Monitor Register
        1. Table 23. Voltage Based Battery Monitor Register, Memory Location 1010
      12. 8.6.12 VIN_DPM and Timers Register
        1. Table 24. VIN_DPM and Timers Register
  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 Default Settings
        2. 9.2.2.2 Choose the Correct Inductance and Capacitance
        3. 9.2.2.3 Calculations
          1. 9.2.2.3.1 Program the Fast Charge Current (ISET)
          2. 9.2.2.3.2 Program the Input Current Limit (ILIM)
          3. 9.2.2.3.3 Program the Pre-charge/termination Threshold (IPRETERM)
          4. 9.2.2.3.4 TS Resistors (TS)
      3. 9.2.3 Application Performance Curves
        1. 9.2.3.1 Charger Curves
        2. 9.2.3.2 SYS Output Curves
        3. 9.2.3.3 Load Switch and LDO Curves
        4. 9.2.3.4 LS/LDO Output Curves
        5. 9.2.3.5 Timing Waveforms Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    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 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

Features

  • Increases system operation time between charges
    • Configurable 300-mA buck regulator (1.8 V default)
    • 700-nA (typical) Iq with buck converter enabled (No Load)
    • Configurable load switch or 100-mA LDO output (1.8 V default)
    • Up to 300-mA charge current for fast charging
    • 0.5% Accurate battery voltage regulation (configurable from 3.6 V to 4.65 V in 10-mV steps)
    • Configurable termination current down to
      500 µA
    • Simple voltage based battery monitor
    • Watchdog timer enabled by default
    • VDPPM Loop disabled
    • VINDPM Disabled by default to support low voltage charging
  • Highly integrated solution with small footprint
    • 2.5 mm x 2.5 mm WCSP Package and 6 external components for minimal solution
    • Push-button wake-up and reset with adjustable timers
    • Power path management for powering the system and charging the battery
    • Power path management enables <50 nA ship mode battery quiescent current for longest shelf life
    • Battery charger operates from 3.4 V – 5.5 VIN (5.5-V OVP / 20-V tolerant)
    • Dedicated pins for input current limit, charge current, termination current, and status output
  • I2C Communication control
    • Charge voltage and current
    • Termination threshold
    • Input current limit
    • VINDPM Threshold
    • Timer options
    • Load switch control
    • Controls for interrupts for faults and status
    • System output voltage adjustment
    • LDO Output voltage adjustment