SLUSCK6A May 2017  – August 2017

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Description (continued)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1Absolute Maximum Ratings
    2. 7.2ESD Ratings
    3. 7.3Recommended Operating Conditions
    4. 7.4Thermal information
    5. 7.5Timing Requirements
    6. 7.6Electrical Characteristics
    7. 7.7Typical Characteristics
  8. Detailed Description
    1. 8.1Overview
    2. 8.2Functional Block Diagram
    3. 8.3Feature Description
      1. 8.3.1Device Power Up from Battery without Input Source
      2. 8.3.2Power Up from Input Source
        1. 8.3.2.1Power Up REGN Regulation
        2. 8.3.2.2Poor Source Qualification
        3. 8.3.2.3Input Source Type Detection
          1. 8.3.2.3.1D+/D- Detection Sets Input Current Limit in bq25606
        4. 8.3.2.4Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 8.3.2.5Converter Power-Up
      3. 8.3.3Boost Mode Operation From Battery
      4. 8.3.4Standalone Power Management
      5. 8.3.5Power Path Management
      6. 8.3.6Battery Charging Management
        1. 8.3.6.1Autonomous Charging Cycle
        2. 8.3.6.2Charging Termination
        3. 8.3.6.3Thermistor Qualification
        4. 8.3.6.4JEITA Guideline Compliance During Charging Mode
        5. 8.3.6.5Boost Mode Thermistor Monitor during Battery Discharge Mode
        6. 8.3.6.6Charging Safety Timer
        7. 8.3.6.7Narrow VDC Architecture
        8. 8.3.6.8Dynamic Power management
        9. 8.3.6.9Supplement Mode
      7. 8.3.7Status Outputs (PG, STAT)
        1. 8.3.7.1Power Good indicator (PG Pin)
        2. 8.3.7.2Charging Status indicator (STAT)
      8. 8.3.8Protections
        1. 8.3.8.1Input Current Limit
        2. 8.3.8.2Voltage and Current Monitoring in Converter Operation
          1. 8.3.8.2.1Voltage and Current Monitoring in Buck Mode
            1. 8.3.8.2.1.1Input Overvoltage (ACOV)
            2. 8.3.8.2.1.2System Overvoltage Protection (SYSOVP)
        3. 8.3.8.3Voltage and Current Monitoring in Boost Mode
          1. 8.3.8.3.1VBUS Soft Start
          2. 8.3.8.3.2VBUS Output Protection
          3. 8.3.8.3.3Boost Mode Overvoltage Protection
        4. 8.3.8.4Thermal Regulation and Thermal Shutdown
          1. 8.3.8.4.1Thermal Protection in Buck Mode
          2. 8.3.8.4.2Thermal Protection in Boost Mode
        5. 8.3.8.5Battery Protection
          1. 8.3.8.5.1Battery overvoltage Protection (BATOVP)
          2. 8.3.8.5.2Battery Over-Discharge Protection
          3. 8.3.8.5.3System Over-Current Protection
  9. Application and Implementation
    1. 9.1Application information
    2. 9.2Typical Application Diagram
      1. 9.2.1Design Requirements
      2. 9.2.2Detailed Design Procedure
        1. 9.2.2.1inductor Selection
        2. 9.2.2.2input Capacitor
        3. 9.2.2.3Output Capacitor
    3. 9.3Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1Layout Guidelines
    2. 11.2Layout Example
  12. 12Device and Documentation Support
    1. 12.1Documentation Support
      1. 12.1.1Related Links
    2. 12.2Community Resources
    3. 12.3Trademarks
    4. 12.4Electrostatic Discharge Caution
    5. 12.5Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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

Applications

  • EPOS, Portable Speakers, E-Cigarette
  • Portable Internet Devices and Accessory

Description

The bq25606 device a highly-integrated standalone 3.0-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
bq25606 VQFN (24)4.00 mm × 4.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Application

bq25606 simp_app_slusck6.gif