SLUSCZ6A January   2018  – May 2021 BQ25123

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  Ship Mode
        1. 9.3.1.1 Ship Mode Entry and Exit
      2. 9.3.2  High Impedance Mode
      3. 9.3.3  Active Battery Only Connected
      4. 9.3.4  Voltage Based Battery Monitor
      5. 9.3.5  Sleep Mode
      6. 9.3.6  Input Voltage Based Dynamic Power Management (VIN(DPM))
      7. 9.3.7  Input Overvoltage Protection and Undervoltage Status Indication
      8. 9.3.8  Battery Charging Process and Charge Profile
      9. 9.3.9  Dynamic Power Path Management Mode
      10. 9.3.10 Battery Supplement Mode
      11. 9.3.11 Default Mode
      12. 9.3.12 Termination and Pre-Charge Current Programming by External Components (IPRETERM)
      13. 9.3.13 Input Current Limit Programming by External Components (ILIM)
      14. 9.3.14 Charge Current Programming by External Components (ISET)
      15. 9.3.15 Safety Timer and Watchdog Timer
      16. 9.3.16 External NTC Monitoring (TS)
      17. 9.3.17 Thermal Protection
      18. 9.3.18 Typical Application Power Dissipation
      19. 9.3.19 Status Indicators ( PG and INT)
      20. 9.3.20 Chip Disable ( CD)
      21. 9.3.21 Buck (PWM) Output
      22. 9.3.22 Load Switch / LDO Output and Control
      23. 9.3.23 Manual Reset Timer and Reset Output ( MR and RESET)
    4. 9.4 Device Functional Modes
    5. 9.5 Programming
      1. 9.5.1 Serial Interface Description
      2. 9.5.2 F/S Mode Protocol
    6. 9.6 Register Maps
      1. 9.6.1  Status and Ship Mode Control Register
      2. 9.6.2  Faults and Faults Mask Register
      3. 9.6.3  TS Control and Faults Masks Register
      4. 9.6.4  Fast Charge Control Register
      5. 9.6.5  Termination/Pre-Charge and I2C Address Register
      6. 9.6.6  Battery Voltage Control Register
      7. 9.6.7  SYS VOUT Control Register
      8. 9.6.8  Load Switch and LDO Control Register
      9. 9.6.9  Push-Button Control Register
      10. 9.6.10 ILIM and Battery UVLO Control Register
      11. 9.6.11 Voltage Based Battery Monitor Register
      12. 9.6.12 VIN_DPM and Timers Register
  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 Default Settings
        2. 10.2.2.2 Choose the Correct Inductance and Capacitance
        3. 10.2.2.3 Calculations
          1. 10.2.2.3.1 Program the Fast Charge Current (ISET)
          2. 10.2.2.3.2 Program the Input Current Limit (ILIM)
          3. 10.2.2.3.3 Program the Pre-Charge/Termination Threshold (IPRETERM)
          4. 10.2.2.3.4 TS Resistors (TS)
      3. 10.2.3 Application Curves
        1. 10.2.3.1 Charger Curves
        2. 10.2.3.2 SYS Output Curves
        3. 10.2.3.3 Load Switch and LDO Curves
        4. 10.2.3.4 LS/LDO Output Curves
        5. 10.2.3.5 Timing Waveforms Curves
  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

8.6 Timing Requirements

MINTYPMAXUNIT
POWER-PATH MANAGEMENT AND INPUT CURRENT LIMIT
tDGL_SCDeglitch time, PMID or SW Short Circuit during Discharge Mode250µs
tREC_SCRecovery time, OUT Short Circuit during Discharge Mode2s
BATTERY CHARGER
tDGL_SHORTDeglitch time transition from ISET short to I(CHARGE) disableClear fault by disconnecting VIN1ms
BATTERY CHARGING TIMERS
tMAXCHGCharge safety timerProgrammable range2540min
tPRECHGPrecharge safety timer0.1 x tMAXCHG
SYS OUTPUT
tONMINMinimum ON timeVIN = 3.6 V, VOUT = 2V, IOUT = 0 mA225ns
tOFFMINMinimum OFF timeVIN = 4.2 V50ns
tSTART_SWSW start up timeVIN = 5 V, from write on EN_SW_OUT until output starts to rise525ms
tSTART_SYSSYS output time to start switchingFrom insertion of BAT > V(BUVLO) or VIN > V(UVLO)350µs
tSOFTSTARTSoftstart time with reduced current limit4001200µs
LS/LDO OUTPUT
tON_LDOTurn ON time100-mA load500µs
tOFF_LDOTurn OFF time100-mA load5µs
PUSHBUTTON TIMER
tWAKE1Push button timer wake 1Programmable range for wake1 function0.081s
tWAKE2Push button timer wake 2Programmable range for wake2 function12s
tRESETPush button timer resetProgrammable range for reset function515s
tRESET_DReset pulse duration400ms
tDDDetection delay (from MR, input to RESET)For 0s condition6µs
BATTERY-PACK NTC MONITOR
tDGL(TS)Deglitch time on TS changeApplies to V(HOT), V(WARM), V(COOL), and V(COLD)50ms
I2C INTERFACE
tWATCHDOGI2C interface reset timer for host50s
tI2CRESETI2C interface inactive reset timer700ms
tHIZ_ACTIVEBATTransition time required to enable the I2C interface from HiZ to Active BAT1ms
INPUT PIN
t/CD_DGLDeglitch for CDCD rising/falling100µs
tQUIETInput quiet time for Ship Mode transition1ms
GUID-DB33A7F4-C442-44C1-BE74-C636C0ECE6BF-low.gif
Conditions: PGB_MRS = 0, TE = 1, SW_LDO = 1, VINDPM_ON = 0, PG and INT pulled up to SYS, EN_INT = 1
Figure 8-1 Typical Start-Up Timing and Operation
GUID-5FCAC2FE-D978-4D13-B219-6ACA863F03A9-low.gif
Conditions: SW_LDO = 1, MRREC = 1, PG and INT pulled up to SYS, ISYS = 10 µA, EN_INT = 1
Figure 8-2 Battery Operation and Sleep Mode