SLUSD20B july   2018  – april 2023 BQ25710

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  Power-Up from Battery Without DC Source
      2. 9.3.2  Vmin Active Protection (VAP) when Battery only Mode
      3. 9.3.3  Power-Up From DC Source
        1. 9.3.3.1 CHRG_OK Indicator
        2. 9.3.3.2 Input Voltage and Current Limit Setup
        3. 9.3.3.3 Battery Cell Configuration
        4. 9.3.3.4 Device Hi-Z State
      4. 9.3.4  USB On-The-Go (OTG)
      5. 9.3.5  Converter Operation
        1. 9.3.5.1 Inductance Detection Through IADPT Pin
        2. 9.3.5.2 Continuous Conduction Mode (CCM)
        3. 9.3.5.3 Pulse Frequency Modulation (PFM)
      6. 9.3.6  Current and Power Monitor
        1. 9.3.6.1 High-Accuracy Current Sense Amplifier (IADPT and IBAT)
        2. 9.3.6.2 High-Accuracy Power Sense Amplifier (PSYS)
      7. 9.3.7  Input Source Dynamic Power Manage
      8. 9.3.8  Two-Level Adapter Current Limit (Peak Power Mode)
      9. 9.3.9  Processor Hot Indication
        1. 9.3.9.1 PROCHOT During Low Power Mode
        2. 9.3.9.2 PROCHOT Status
      10. 9.3.10 Device Protection
        1. 9.3.10.1 Watchdog Timer
        2. 9.3.10.2 Input Overvoltage Protection (ACOV)
        3. 9.3.10.3 Input Overcurrent Protection (ACOC)
        4. 9.3.10.4 System Overvoltage Protection (SYSOVP)
        5. 9.3.10.5 Battery Overvoltage Protection (BATOVP)
        6. 9.3.10.6 Battery Short
        7. 9.3.10.7 System Short Hiccup Mode
        8. 9.3.10.8 Thermal Shutdown (TSHUT)
    4. 9.4 Device Functional Modes
      1. 9.4.1 Forward Mode
        1. 9.4.1.1 System Voltage Regulation with Narrow VDC Architecture
        2. 9.4.1.2 Battery Charging
      2. 9.4.2 USB On-The-Go
      3. 9.4.3 Pass Through Mode (PTM)
    5. 9.5 Programming
      1. 9.5.1 SMBus Interface
        1. 9.5.1.1 SMBus Write-Word and Read-Word Protocols
        2. 9.5.1.2 Timing Diagrams
    6. 9.6 Register Map
      1. 9.6.1  Setting Charge and PROCHOT Options
        1. 9.6.1.1 ChargeOption0 Register (SMBus address = 12h) [reset = E70Eh]
        2. 9.6.1.2 ChargeOption1 Register (SMBus address = 30h) [reset = 0211h]
        3. 9.6.1.3 ChargeOption2 Register (SMBus address = 31h) [reset = 02B7h]
        4. 9.6.1.4 ChargeOption3 Register (SMBus address = 32h) [reset = 0030h]
        5. 9.6.1.5 ProchotOption0 Register (SMBus address = 33h) [reset = 4A65h]
        6. 9.6.1.6 ProchotOption1 Register (SMBus address = 34h) [reset = 81A0h]
        7. 9.6.1.7 ADCOption Register (SMBus address = 35h) [reset = 2000h]
      2. 9.6.2  Charge and PROCHOT Status
        1. 9.6.2.1 ChargerStatus Register (SMBus address = 20h) [reset = 0000h]
        2. 9.6.2.2 ProchotStatus Register (SMBus address = 21h) [reset = A800h]
      3. 9.6.3  ChargeCurrent Register (SMBus address = 14h) [reset = 0000h]
        1. 9.6.3.1 Battery Precharge Current Clamp
      4. 9.6.4  MaxChargeVoltage Register (SMBus address = 15h) [reset value based on CELL_BATPRESZ pin setting]
      5. 9.6.5  MinSystemVoltage Register (SMBus address = 3Eh) [reset value based on CELL_BATPRESZ pin setting]
        1. 9.6.5.1 System Voltage Regulation
      6. 9.6.6  Input Current and Input Voltage Registers for Dynamic Power Management
        1. 9.6.6.1 Input Current Registers
          1. 9.6.6.1.1 IIN_HOST Register With 10-mΩ Sense Resistor (SMBus address = 3Fh) [reset = 4100h]
          2. 9.6.6.1.2 IIN_DPM Register With 10-mΩ Sense Resistor (SMBus address = 022h) [reset = 4100h]
          3. 9.6.6.1.3 InputVoltage Register (SMBus address = 3Dh) [reset = VBUS-1.28V]
      7. 9.6.7  OTGVoltage Register (SMBus address = 3Bh) [reset = 0000h]
      8. 9.6.8  OTGCurrent Register (SMBus address = 3Ch) [reset = 0000h]
      9. 9.6.9  ADCVBUS/PSYS Register (SMBus address = 23h)
      10. 9.6.10 ADCIBAT Register (SMBus address = 24h)
      11. 9.6.11 ADCIINCMPIN Register (SMBus address = 25h)
      12. 9.6.12 ADCVSYSVBAT Register (SMBus address = 26h)
      13. 9.6.13 ID Registers
        1. 9.6.13.1 ManufactureID Register (SMBus address = FEh) [reset = 0040h]
        2. 9.6.13.2 Device ID (DeviceAddress) Register (SMBus address = FFh) [reset = 0h]
  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 ACP-ACN Input Filter
        2. 10.2.2.2 Inductor Selection
        3. 10.2.2.3 Input Capacitor
        4. 10.2.2.4 Output Capacitor
        5. 10.2.2.5 Power MOSFETs Selection
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
      1. 12.2.1 Layout Example Reference Top View
      2. 12.2.2 Inner Layer Layout and Routing 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

9.6.2.1 ChargerStatus Register (SMBus address = 20h) [reset = 0000h]

Figure 9-13 ChargerStatus Register (SMBus address = 20h) [reset = 0000h]
15141312111098
AC_STATICO_DONEIN_VAPIN_VINDPMIN_IINDPMIN_FCHRGIN_PCHRGIN_OTG
RRRRRRRR
76543210
Fault ACOVFault BATOCFault ACOCSYSOVP
_STAT		Fault SYS
_SHORT		Fault LatchoffFault_OTG
_OVP		Fault_OTG
_OCP
RRRR/WR/WRRR
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 9-21 ChargerStatus Register (SMBus address = 20h) Field Descriptions
SMBus
BIT		FIELDTYPERESETDESCRIPTION
15AC_STATR0b

Input source status, same as CHRG_OK bit

0b: Input not present

1b: Input is present

14ICO_DONER0b

After the ICO routine is successfully executed, the bit goes 1.

0b: ICO is not complete

1b: ICO is complete

13IN_VAPR0b

0b: Charger is not operated in VAP mode

1b: Charger is operated in VAP mode

12IN_VINDPMR0b

0b: Charger is not in VINDPM during forward mode, or voltage regulation during OTG mode

1b: Charger is in VINDPM during forward mode, or voltage regulation during OTG mode

11IN_IINDPMR0b

0b: Charger is not in IINDPM

1b: Charger is in IINDPM

10IN_FCHRGR0b

0b: Charger is not in fast charge

1b: Charger is in fast charger

9IN_PCHRGR0b

0b: Charger is not in precharge

1b: Charger is in precharge

8IN_OTGR0b

0b: Charger is not in OTG

1b: Charge is in OTG

Table 9-22 ChargerStatus Register (SMBus address = 20h) Field Descriptions
SMBus
BIT		FIELDTYPERESETDESCRIPTION
7Fault ACOVR0b

The faults are latched until a read from host.

0b: No fault

1b: ACOV

6Fault BATOCR0b

The faults are latched until a read from host.

0b: No fault

1b: BATOC

5Fault ACOCR0b

The faults are latched until a read from host.

0b: No fault

1b: ACOC

4SYSOVP_STATR/W0b

SYSOVP Status and Clear

When the SYSOVP occurs, this bit is HIGH. During the SYSOVP, the converter is disabled.

After the SYSOVP is removed, the user must write a 0 to this bit or unplug the adapter to clear the SYSOVP condition to enable the converter again.

0b: Not in SYSOVP <default at POR>

1b: In SYSOVP. When SYSOVP is removed, write 0 to clear the SYSOVP latch.

3Fault SYS_SHORTR/W0b

The fault is latched until a clear from host by writing this bit to 0.

0b: No fault <default at POR>

1b: When SYS is lower than 2.4V, then 7 times restart tries are failed.

2Fault LatchoffR0b

The faults are latched until a read from host.

0b: No fault

1b: Latch off (REG0x30[3])

1Fault_OTG_OVPR0b

The faults are latched until a read from host.

0b: No fault

1b: OTG OVP

0Fault_OTG_UVPR0b

The faults are latched until a read from host.

0b: No fault

1b: OTG UVP