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  • BQ25890/2 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM Technology for High Input Voltage and Adjustable Voltage USB On-the-Go Boost Mode

    • SLUSC86D March   2015  – October 2022 BQ25890 , BQ25892

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  • BQ25890/2 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM Technology for High Input Voltage and Adjustable Voltage USB On-the-Go Boost Mode
  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 (1)
    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 Functional Block Diagram
    2. 9.2 Feature Description
      1. 9.2.1  Device Power-On-Reset (POR)
      2. 9.2.2  Device Power Up from Battery without Input Source
      3. 9.2.3  Device Power Up from Input Source
        1. 9.2.3.1 Power Up REGN Regulation (LDO)
        2. 9.2.3.2 Poor Source Qualification
        3. 9.2.3.3 Input Source Type Detection
          1. 9.2.3.3.1 D+/D– Detection Sets Input Current Limit (BQ25890)
          2. 9.2.3.3.2 PSEL/OTG Pins Set Input Current Limit (BQ25892)
          3. 9.2.3.3.3 Force Input Current Limit Detection
        4. 9.2.3.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
        5. 9.2.3.5 Converter Power-Up
      4. 9.2.4  Input Current Optimizer (ICO)
      5. 9.2.5  Boost Mode Operation from Battery
      6. 9.2.6  Power Path Management
        1. 9.2.6.1 Narrow VDC Architecture
        2. 9.2.6.2 Dynamic Power Management
        3. 9.2.6.3 Supplement Mode
      7. 9.2.7  Battery Charging Management
        1. 9.2.7.1 Autonomous Charging Cycle
        2. 9.2.7.2 Battery Charging Profile
        3. 9.2.7.3 Charging Termination
        4. 9.2.7.4 Resistance Compensation (IRCOMP)
        5. 9.2.7.5 Thermistor Qualification
          1. 9.2.7.5.1 JEITA Guideline Compliance in Charge Mode
          2. 9.2.7.5.2 Cold/Hot Temperature Window in Boost Mode
        6. 9.2.7.6 Charging Safety Timer
      8. 9.2.8  Battery Monitor
      9. 9.2.9  Status Outputs ( PG, STAT, and INT)
        1. 9.2.9.1 Power Good Indicator ( PG)
        2. 9.2.9.2 Charging Status Indicator (STAT)
        3. 9.2.9.3 Interrupt to Host (INT)
      10. 9.2.10 BATET (Q4) Control
        1. 9.2.10.1 BATFET Disable Mode (Shipping Mode)
        2. 9.2.10.2 BATFET Enable (Exit Shipping Mode)
        3. 9.2.10.3 BATFET Full System Reset
      11. 9.2.11 Current Pulse Control Protocol
      12. 9.2.12 Input Current Limit on ILIM
      13. 9.2.13 Thermal Regulation and Thermal Shutdown
        1. 9.2.13.1 Thermal Protection in Buck Mode
        2. 9.2.13.2 Thermal Protection in Boost Mode
      14. 9.2.14 Voltage and Current Monitoring in Buck and Boost Mode
        1. 9.2.14.1 Voltage and Current Monitoring in Buck Mode
          1. 9.2.14.1.1 Input Overvoltage (ACOV)
          2. 9.2.14.1.2 System Overvoltage Protection (SYSOVP)
        2. 9.2.14.2 Voltage and Current Monitoring in Boost Mode
          1. 9.2.14.2.1 VBUS Overcurrent Protection
          2. 9.2.14.2.2 Boost Mode Overvoltage Protection
      15. 9.2.15 Battery Protection
        1. 9.2.15.1 Battery Overvoltage Protection (BATOVP)
        2. 9.2.15.2 Battery Over-Discharge Protection
        3. 9.2.15.3 System Overcurrent Protection
      16. 9.2.16 Serial Interface
        1. 9.2.16.1 Data Validity
        2. 9.2.16.2 START and STOP Conditions
        3. 9.2.16.3 Byte Format
        4. 9.2.16.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 9.2.16.5 Target Address and Data Direction Bit
        6. 9.2.16.6 Single Read and Write
        7. 9.2.16.7 Multi-Read and Multi-Write
    3. 9.3 Device Functional Modes
      1. 9.3.1 Host Mode and Default Mode
    4. 9.4 Register Maps
      1. 9.4.1  REG00
      2. 9.4.2  REG01
      3. 9.4.3  REG02
      4. 9.4.4  REG03
      5. 9.4.5  REG04
      6. 9.4.6  REG05
      7. 9.4.7  REG06
      8. 9.4.8  REG07
      9. 9.4.9  REG08
      10. 9.4.10 REG09
      11. 9.4.11 REG0A
      12. 9.4.12 REG0B
      13. 9.4.13 REG0C
      14. 9.4.14 REG0D
      15. 9.4.15 REG0E
      16. 9.4.16 REG0F
      17. 9.4.17 REG10
      18. 9.4.18 REG11
      19. 9.4.19 REG12
      20. 9.4.20 REG13
      21. 9.4.21 REG14
  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 Inductor Selection
        2. 10.2.2.2 Buck Input Capacitor
        3. 10.2.2.3 System Output Capacitor
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
  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 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information
  15. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • RTW|24
    • MPQF167C
Thermal pad, mechanical data (Package|Pins)
  • RTW|24
    • QFND125K
Orderable Information
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  • slusc86d_pm
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DATA SHEET

BQ25890/2 I2C Controlled Single Cell 5-A Fast Charger with MaxChargeTM Technology for High Input Voltage and Adjustable Voltage USB On-the-Go Boost Mode

1 Features

  • High efficiency 5-A, 1.5-MHz Switch Mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3-A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low power PFM Mode for light-load operations
  • USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
    • 93% Boost efficiency at 5 V at 1-A output
    • Accurate Hiccup Mode overcurent protection
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14 V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
  • Input Current Optimizer (ICO) to maximize input power without overloading adapters
  • Resistance Compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor
    (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High Accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown

2 Applications

  • Smartphone
  • Tablet PC
  • Portable Internet Devices

3 Description

The BQ25890, BQ25892 are highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.

Device Information
PART NUMBERPACKAGE(1)BODY SIZE (NOM)
BQ25890WQFN (24)4.00mm x 4.00mm
BQ25892
(1) For all available packages, see the orderable addendum at the end of the datasheet.
GUID-1F65D26A-24AD-40A0-AFC1-E5BBD6D28279-low.gifSimplified Schematic

4 Revision History

Changes from Revision C (May 2018) to Revision D (October 2022)

  • Deleted WEBENCH throughout data sheet Go
  • Updated inclusive terminology throughout data sheetGo

Changes from Revision B (May 2016) to Revision C (May 2018)

  • Added WEBENCH links to data sheet Go
  • Added "SW (peak for 10 ns duration)" To the Section 8.1 Go
  • Updated the Section 8.4 valuesGo
  • Changed VSYS TYP value From: VBAT + 50 mV To: I(SYS) + 150 mVGo
  • Changed the title of Figure 8-4 From: Charge Current Accuracy To: I2C Setting Go
  • Changed axis title of Figure 8-8 From: BAT Voltage (V) To: Input Current Limit (mA)Go
  • Changed VVREF to VREGN in Equation 2 Go
  • Changed VREF to VREGN in Figure 9-8 Go
  • Added sentence to the Battery Monitor secton "In battery only mode, .."Go
  • Changed the Description values of Table 9-27 From: mV To: mAGo
  • Changed the Type values of Bits 6 to Bit 0 in Table 9-29 From: R/W To: RGo
  • Added VREF system pullup voltage to Table 10-1 Go

Changes from Revision A (June 2015) to Revision B (May 2016)

  • Added Pin Configuration and Functions section, ESD Rating table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section.Go

Changes from Revision * (March 2015) to Revision A (June 2015)

  • Added "Technology" to the data sheet title Go
  • Deleted text form the OTG pin Description "OTG = High, IINLIM is set to USB500 mode". Go
  • Changed the Description of the OTG pin in the Pin Functions table Go
  • Changed V(SLEEP) and V(SLEEPZ) Unit From: V To: mV Go
  • Added TYP values to IIN(DPM_ACC) in the Section 8.5 table Go
  • Deleted D+/D- DETECTION (bq25890) from the Section 8.6 Go
  • Added condition "DCR = 10 mΩ" to Figure 8-1 Go
  • Deleted VCHG_REG and IBAT_REG at Q4 gate Control in the Section 9.1 Go
  • Deleted "SDP_STAT bit is updated to indicate USB100 or other input source" from Section 9.2.3.3 Go
  • Changed Figure 9-1, SDP(USB100/USB500) To: SDP (USB500) Go
  • Deleted USB SDP (USB100) and the OTG Pin column from Table 9-3 and Table 9-4 Go
  • Added text to the Section 9.2.3.3.2 section: "To implement USB100 in the system..."Go
  • Deleted section: Plug in USB100 Source Go
  • Added text to Section 9.2.3.4, "After Input Voltage Limit Threshold..." Go
  • Changed text in Section 9.2.4 From: "After DCP type..." To: "After DCP or MaxCharge type" Go
  • Changed Equation 1, From: BATCOMP, VREG + VCLAMP To: BATCOMP, VCLAMP Go
  • Changed the Description of the INLIM Bits in Table 9-9 Go
  • Changed , Bits 3 to 0, From: Default: 128mA (0011) To: Default: 256mA (0011)Go
  • Changed Bit 1 From: SDP_STAT To: Reserved Go
  • Changed VIN To: VBUS in Equation 6 Go
  • Changed Input Capacitor To: Section 10.2.2.2 Go
  • Changed ICIN to IPMID in Section 10.2.2.2 and Equation 7 Go
  • Changed "15-V input voltage. 22-μF capacitanc" To: "14-V input voltage. 8.2-μF capacitance" in Section 10.2.2.2 Go
  • Changed Output Capacitor To: Section 10.2.2.3 Go
  • Changed ICOUT To: ICSYS in Equation 8 , Changed Equation 9 Go
  • Deleted Graph "Power UP"Go

 
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