SLUSE42A july   2020  – april 2023 BQ21062

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Device Comparison Table
  7. 7 Pin Configuration and Functions
  8. 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. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Linear Charger and Power Path
        1. 9.3.1.1 Battery Charging Process
        2. 9.3.1.2 JEITA and Battery Temperature Dependent Charging
        3. 9.3.1.3 Input Voltage Based Dynamic Power Management (VINDPM)
        4. 9.3.1.4 Battery Supplement Mode
      2. 9.3.2  Protection Mechanisms
        1. 9.3.2.1 Input Over-Voltage Protection
        2. 9.3.2.2 Safety Timer and I2C Watchdog Timer
        3. 9.3.2.3 Thermal Protection and Thermal Charge Current Foldback
        4. 9.3.2.4 Battery Short and Over Current Protection
        5. 9.3.2.5 PMID Short Circuit
      3. 9.3.3  VDD LDO
      4. 9.3.4  Load Switch/LDO Output and Control
      5. 9.3.5  PMID Power Control
      6. 9.3.6  System Voltage (PMID) Regulation
      7. 9.3.7  MR Wake and Reset Input
        1. 9.3.7.1 MR Wake or Short Button Press Functions
        2. 9.3.7.2 MR Reset or Long Button Press Functions
      8. 9.3.8  14-Second Watchdog for HW Reset
      9. 9.3.9  Faults Conditions and Interrupts ( INT)
        1. 9.3.9.1 Flags and Fault Condition Response
      10. 9.3.10 Power Good ( PG) Pin
      11. 9.3.11 External NTC Monitoring (TS)
        1. 9.3.11.1 TS Thresholds
      12. 9.3.12 I2C Interface
        1. 9.3.12.1 F/S Mode Protocol
    4. 9.4 Device Functional Modes
      1. 9.4.1 Ship Mode
      2. 9.4.2 Low Power
      3. 9.4.3 Active Battery
      4. 9.4.4 Charger/Adapter Mode
      5. 9.4.5 Power-Up/Down Sequencing
    5. 9.5 Register Map
      1. 9.5.1 I2C Registers
  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 Input (IN/PMID) Capacitors
        2. 10.2.2.2 VDD, LDO Input and Output Capacitors
        3. 10.2.2.3 TS
        4. 10.2.2.4 Recommended Passive Components
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Support 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

1 Features

  • Linear battery charger with 1.25-mA to 500-mA fast charge current range
    • 0.5% Accurate I2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV steps
    • Configurable termination current supporting down to 0.5 mA
    • 20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating range
    • Programmable thermal charging profile, fully configurable hot, warm, cool and cold thresholds
  • Power Path management for powering system and charging battery
    • I2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though options
    • Dynamic power path management optimizes charging from weak adapters
    • Advanced I2C control allows host to disconnect the battery or adapter as needed
  • I2C Configurable load switch or up to 150-mA LDO output
    • Programmable range from 0.6 V to 3.7 V in 100-mV steps
  • Ultra low Iddq for extended battery life
    • 10-nA Ship mode battery Iq
    • 400-nA Iq While powering the system (PMID and VDD on)
  • One push-button wake-up and reset input with adjustable timers
    • Supports system power cycle and HW reset
  • 20-Pin 2-mm x 1.6-mm CSP package
  • 11-mm2 Total solution size