SLUSCK6B May   2017  – November 2019 BQ25606

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Simplified Application
      1.      Device Images
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
    1.     Pin 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 Timing Requirements
    6. 7.6 Electrical Characteristics
    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 Device Power Up from Battery without Input Source
      2. 8.3.2 Power Up from Input Source
        1. 8.3.2.1 Power Up REGN Regulation
        2. 8.3.2.2 Poor Source Qualification
        3. 8.3.2.3 Input Source Type Detection
          1. 8.3.2.3.1 D+/D– Detection Sets Input Current Limit in BQ25606
        4. 8.3.2.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 8.3.2.5 Converter Power-Up
      3. 8.3.3 Boost Mode Operation From Battery
      4. 8.3.4 Standalone Power Management
      5. 8.3.5 Power Path Management
      6. 8.3.6 Battery Charging Management
        1. 8.3.6.1 Autonomous Charging Cycle
        2. 8.3.6.2 Charging Termination
        3. 8.3.6.3 Thermistor Qualification
        4. 8.3.6.4 JEITA Guideline Compliance During Charging Mode
        5. 8.3.6.5 Boost Mode Thermistor Monitor during Battery Discharge Mode
        6. 8.3.6.6 Charging Safety Timer
      7. 8.3.7 Protections
        1. 8.3.7.1 Input Current Limit
        2. 8.3.7.2 Voltage and Current Monitoring in Converter Operation
          1. 8.3.7.2.1 Voltage and Current Monitoring in Buck Mode
            1. 8.3.7.2.1.1 Input Overvoltage (ACOV)
            2. 8.3.7.2.1.2 System Overvoltage Protection (SYSOVP)
        3. 8.3.7.3 Voltage and Current Monitoring in Boost Mode
          1. 8.3.7.3.1 VBUS Soft Start
          2. 8.3.7.3.2 VBUS Output Protection
          3. 8.3.7.3.3 Boost Mode Overvoltage Protection
        4. 8.3.7.4 Thermal Regulation and Thermal Shutdown
          1. 8.3.7.4.1 Thermal Protection in Buck Mode
          2. 8.3.7.4.2 Thermal Protection in Boost Mode
        5. 8.3.7.5 Battery Protection
          1. 8.3.7.5.1 Battery Over-Voltage Protection (BATOVP)
          2. 8.3.7.5.2 Battery Over-Discharge Protection
          3. 8.3.7.5.3 System Over-Current Protection
  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 Inductor Selection
        2. 9.2.2.2 Input Capacitor
        3. 9.2.2.3 Output Capacitor
      3. 9.2.3 Application 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 Support 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

1 Features

  • High-efficiency, 1.5-MHz, synchronous switch-mode buck charger
    • 92% Charge efficiency at 2-A from 5-V input
    • Optimized for USB voltage input (5 V)
  • Supports USB On-The-Go (OTG)
    • Boost converter with up to 1.2-A output
    • 92% Boost efficiency at 1-A output
    • Accurate constant current (CC) limit
    • Soft-start up to 500-µF capacitive load
    • Output short circuit protection
  • Single input to support USB input and high voltage adapters
    • Support 3.9-V to 13.5-V input voltage range with 22-V absolute maximum input voltage rating
    • Maximum power tracking by input voltage limit up to 4.6 V (VINDPM)
    • VINDPM Threshold automatically tracks battery voltage
    • Auto detect USB SDP, DCP and non-standard adaptors
  • High battery discharge efficiency with 19.5-mΩ battery discharge MOSFET
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in battery supplement mode
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 58-µA Low battery leakage current with system voltage standby
  • High accuracy
    • ±0.5% Charge voltage regulation
    • ±6% at 1.2-A and 1.8-A Charge current regulation
    • ±5% at 0.5-A, 1.2-A and 1.8-A Input current regulation
  • Create a Custom Design Using the BQ25606 With the WEBENCH® Power Designer