SLUSC86C March   2015  – May 2018

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Simplified Schematic
  4. Revision History
  5. Description (continued)
  6. Device Comparison Table
  7. Pin Configuration and Functions
    1.     Pin Functions
  8. Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing Requirements
    7. 8.7 Typical Characteristics
  9. Detailed Description
    1. 9.1 Functional Block Diagram
    2. 9.2 Feature Description
      1. 9.2.1  Device Power-On-Reset (POR)
      2. 9.2.2  Device Power Up from Battery without Input Source
      3. 9.2.3  Device Power Up from Input Source
        1. 9.2.3.1 Power Up REGN Regulation (LDO)
        2. 9.2.3.2 Poor Source Qualification
        3. 9.2.3.3 Input Source Type Detection
          1. 9.2.3.3.1 D+/D– Detection Sets Input Current Limit (bq25890)
          2. 9.2.3.3.2 PSEL/OTG Pins Set Input Current Limit (bq25892)
          3. 9.2.3.3.3 Force Input Current Limit Detection
        4. 9.2.3.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 9.2.3.5 Converter Power-Up
      4. 9.2.4  Input Current Optimizer (ICO)
      5. 9.2.5  Boost Mode Operation from Battery
      6. 9.2.6  Power Path Management
        1. 9.2.6.1 Narrow VDC Architecture
        2. 9.2.6.2 Dynamic Power Management
        3. 9.2.6.3 Supplement Mode
      7. 9.2.7  Battery Charging Management
        1. 9.2.7.1 Autonomous Charging Cycle
        2. 9.2.7.2 Battery Charging Profile
        3. 9.2.7.3 Charging Termination
        4. 9.2.7.4 Resistance Compensation (IRCOMP)
        5. 9.2.7.5 Thermistor Qualification
          1. 9.2.7.5.1 JEITA Guideline Compliance in Charge Mode
          2. 9.2.7.5.2 Cold/Hot Temperature Window in Boost Mode
        6. 9.2.7.6 Charging Safety Timer
      8. 9.2.8  Battery Monitor
      9. 9.2.9  Status Outputs (PG, STAT, and INT)
        1. 9.2.9.1 Power Good Indicator (PG)
        2. 9.2.9.2 Charging Status Indicator (STAT)
        3. 9.2.9.3 Interrupt to Host (INT)
      10. 9.2.10 BATET (Q4) Control
        1. 9.2.10.1 BATFET Disable Mode (Shipping Mode)
        2. 9.2.10.2 BATFET Enable (Exit Shipping Mode)
        3. 9.2.10.3 BATFET Full System Reset
      11. 9.2.11 Current Pulse Control Protocol
      12. 9.2.12 Input Current Limit on ILIM
      13. 9.2.13 Thermal Regulation and Thermal Shutdown
        1. 9.2.13.1 Thermal Protection in Buck Mode
        2. 9.2.13.2 Thermal Protection in Boost Mode
      14. 9.2.14 Voltage and Current Monitoring in Buck and Boost Mode
        1. 9.2.14.1 Voltage and Current Monitoring in Buck Mode
          1. 9.2.14.1.1 Input Overvoltage (ACOV)
          2. 9.2.14.1.2 System Overvoltage Protection (SYSOVP)
        2. 9.2.14.2 Voltage and Current Monitoring in Boost Mode
          1. 9.2.14.2.1 VBUS Overcurrent Protection
          2. 9.2.14.2.2 Boost Mode Overvoltage Protection
      15. 9.2.15 Battery Protection
        1. 9.2.15.1 Battery Overvoltage Protection (BATOVP)
        2. 9.2.15.2 Battery Over-Discharge Protection
        3. 9.2.15.3 System Overcurrent Protection
      16. 9.2.16 Serial Interface
        1. 9.2.16.1 Data Validity
        2. 9.2.16.2 START and STOP Conditions
        3. 9.2.16.3 Byte Format
        4. 9.2.16.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 9.2.16.5 Slave Address and Data Direction Bit
        6. 9.2.16.6 Single Read and Write
        7. 9.2.16.7 Multi-Read and Multi-Write
    3. 9.3 Device Functional Modes
      1. 9.3.1 Host Mode and Default Mode
    4. 9.4 Register Maps
      1. 9.4.1  REG00
        1. Table 9. REG00
      2. 9.4.2  REG01
        1. Table 10. REG01
      3. 9.4.3  REG02
        1. Table 11. REG02
      4. 9.4.4  REG03
        1. Table 12. REG03
      5. 9.4.5  REG04
        1. Table 13. REG04
      6. 9.4.6  REG05
        1. Table 14. REG05
      7. 9.4.7  REG06
        1. Table 15. REG06
      8. 9.4.8  REG07
        1. Table 16. REG07
      9. 9.4.9  REG08
        1. Table 17. REG08
      10. 9.4.10 REG09
        1. Table 18. REG09
      11. 9.4.11 REG0A
        1. Table 19. REG0A
      12. 9.4.12 REG0B
        1. Table 20. REG0B
      13. 9.4.13 REG0C
        1. Table 21. REG0C
      14. 9.4.14 REG0D
        1. Table 22. REG0D
      15. 9.4.15 REG0E
        1. Table 23. REG0E
      16. 9.4.16 REG0F
        1. Table 24. REG0F
      17. 9.4.17 REG10
        1. Table 25. REG10
      18. 9.4.18 REG11
        1. Table 26. REG11
      19. 9.4.19 REG12
        1. Table 27. REG12
      20. 9.4.20 REG13
        1. Table 28. REG13
      21. 9.4.21 REG14
        1. Table 29. REG14
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Custom Design With WEBENCH® Tools
        2. 10.2.2.2 Inductor Selection
        3. 10.2.2.3 Buck Input Capacitor
        4. 10.2.2.4 System Output Capacitor
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Development Support
      1. 13.1.1 Custom Design With WEBENCH® Tools
    2. 13.2 Documentation Support
      1. 13.2.1 Related Links
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Community Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

Features

  • High Efficiency 5-A, 1.5-MHz Switch Mode Buck Charge
    • 93% Charge Efficiency at 2 A and 91% Charge Efficiency at 3-A Charge Current
    • Optimize for High Voltage Input (9 V to 12 V)
    • Low Power PFM mode for Light-Load Operations
  • USB On-the-Go (OTG) with Adjustable Output from 4.5 V to 5.5 V
    • Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A Output
    • 93% Boost Efficiency at 5 V at 1-A Output
    • Accurate Hiccup Mode Overcurent Protection
  • Single Input to Support USB Input and Adjustable High Voltage Adapters
    • Support 3.9-V to 14-V Input Voltage Range
    • Input Current Limit (100 mA to 3.25 A with 50-mA resolution) to Support USB2.0, USB3.0 Standard and High Voltage Adapters
    • Maximum Power Tracking by Input Voltage Limit up-to 14 V for Wide Range of Adapters
    • Auto Detect USB SDP, CDP, DCP, and Non-Standard Adapters (bq25890)
  • Input Current Optimizer (ICO) to Maximize Input Power without Overloading Adapters
  • Resistance Compensation (IRCOMP) from Charger Output to Cell Terminal
  • Highest Battery Discharge Efficiency with 11-mΩ Battery Discharge MOSFET up to 9 A
  • Integrated ADC for System Monitor
    (Voltage, Temperature, Charge Current)
  • Narrow VDC (NVDC) Power Path Management
    • Instant-On Works with No Battery or Deeply Discharged Battery
    • Ideal Diode Operation in Battery Supplement Mode
  • BATFET Control to Support Ship Mode, Wake Up, and Full System Reset
  • Flexible Autonomous and I2C Mode for Optimal System Performance
  • High Integration includes all MOSFETs, Current Sensing and Loop Compensation
  • 12-µA Low Battery Leakage Current to Support Ship Mode
  • High Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±5% Charge Current Regulation
    • ±7.5% Input Current Regulation
  • Safety
    • Battery Temperature Sensing for Charge and Boost Mode
    • Thermal Regulation and Thermal Shutdown
  • Create a Custom Design Using the bq25890 With the WEBENCH® Power Designer and bq25892 With the WEBENCH® Power Designer