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  • BQ2429x I2C Controlled 3-A Single Cell USB Charger With Narrow VDC Power Path Management and Adjustable Voltage USB OTG

    • SLUSBP6D september   2013  – april 2023 BQ24296 , BQ24297

      PRODUCTION DATA  

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  • BQ2429x I2C Controlled 3-A Single Cell USB Charger With Narrow VDC Power Path Management and Adjustable Voltage USB OTG
  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 #GUID-BA2DB09A-966C-4324-B633-1AB165FC219B/SLUSBC14058
    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 Device Power Up
        1. 9.3.1.1 Power-On-Reset (POR)
        2. 9.3.1.2 Power Up from Battery without DC Source
          1. 9.3.1.2.1 BATFET Turn Off
          2. 9.3.1.2.2 Shipping Mode
        3. 9.3.1.3 Power Up from DC Source
          1. 9.3.1.3.1 REGN LDO
          2. 9.3.1.3.2 Input Source Qualification
          3. 9.3.1.3.3 Input Current Limit Detection
          4. 9.3.1.3.4 D+/D– Detection Sets Input Current Limit (BQ24297)
          5. 9.3.1.3.5 PSEL/OTG Pins Set Input Current Limit
          6. 9.3.1.3.6 HIZ State with 100mA USB Host
          7. 9.3.1.3.7 Force Input Current Limit Detection
        4. 9.3.1.4 Converter Power-Up
        5. 9.3.1.5 Boost Mode Operation from Battery
      2. 9.3.2 Power Path Management
        1. 9.3.2.1 Narrow VDC Architecture
        2. 9.3.2.2 Dynamic Power Management
        3. 9.3.2.3 Supplement Mode
      3. 9.3.3 Battery Charging Management
        1. 9.3.3.1 Autonomous Charging Cycle
        2. 9.3.3.2 Battery Charging Profile
        3. 9.3.3.3 Thermistor Qualification
          1. 9.3.3.3.1 Cold/Hot Temperature Window
        4. 9.3.3.4 Charging Termination
          1. 9.3.3.4.1 Termination When REG02[0] = 1
        5. 9.3.3.5 Charging Safety Timer
          1. 9.3.3.5.1 Safety Timer Configuration Change
        6. 9.3.3.6 USB Timer When Charging from USB100mA Source
      4. 9.3.4 Status Outputs ( PG, STAT, and INT)
        1. 9.3.4.1 Power Good Indicator ( PG) (BQ24296)
        2. 9.3.4.2 Charging Status Indicator (STAT)
        3. 9.3.4.3 Interrupt to Host (INT)
      5. 9.3.5 Protections
        1. 9.3.5.1 Input Current Limit on ILIM
        2. 9.3.5.2 Thermal Regulation and Thermal Shutdown
        3. 9.3.5.3 Voltage and Current Monitoring in Buck Mode
          1. 9.3.5.3.1 Input Over-Voltage (ACOV)
          2. 9.3.5.3.2 System Over-Voltage Protection (SYSOVP)
        4. 9.3.5.4 Voltage and Current Monitoring in Boost Mode
          1. 9.3.5.4.1 Over-Current Protection
          2. 9.3.5.4.2 VBUS Over-Voltage Protection
        5. 9.3.5.5 Battery Protection
          1. 9.3.5.5.1 Battery Over-Voltage Protection (BATOVP)
          2. 9.3.5.5.2 Battery Short Protection
          3. 9.3.5.5.3 System Over-Current Protection
    4. 9.4 Device Functional Modes
      1. 9.4.1 Host Mode and Default Mode
        1. 9.4.1.1 Plug in USB100mA Source with Good Battery
        2. 9.4.1.2 USB Timer When Charging from USB100mA Source
    5. 9.5 Programming
      1. 9.5.1 Serial Interface
        1. 9.5.1.1 Data Validity
        2. 9.5.1.2 START and STOP Conditions
        3. 9.5.1.3 Byte Format
        4. 9.5.1.4 Acknowledge (ACK) and Not Acknowledge (NACK)
        5. 9.5.1.5 Target Address and Data Direction Bit
          1. 9.5.1.5.1 Single Read and Write
          2. 9.5.1.5.2 Multi-Read and Multi-Write
    6. 9.6 Register Map
      1. 9.6.1 I2C Registers
        1. 9.6.1.1  Input Source Control Register REG00 [reset = 00110xxx, or 3x]
        2. 9.6.1.2  Power-On Configuration Register REG01 [reset = 00011011, or 0x1B]
        3. 9.6.1.3  Charge Current Control Register REG02 [reset = 01100000, or 60]
        4. 9.6.1.4  Pre-Charge/Termination Current Control Register REG03 [reset = 00010001, or 0x11]
        5. 9.6.1.5  Charge Voltage Control Register REG04 [reset = 10110010, or 0xB2]
        6. 9.6.1.6  Charge Termination/Timer Control Register REG05 [reset = 10011010, or 0x9A]
        7. 9.6.1.7  Boost Voltage/Thermal Regulation Control Register REG06 [reset = 01110011, or 0x73]
        8. 9.6.1.8  Misc Operation Control Register REG07 [reset = 01001011, or 4B]
        9. 9.6.1.9  System Status Register REG08
        10. 9.6.1.10 New Fault Register REG09
        11. 9.6.1.11 Vender / Part / Revision Status Register REG0A
  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 Input Capacitor
        3. 10.2.2.3 Output Capacitor
      3. 10.2.3 Application Performance Plots
  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
  15. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • RGE|24
    • MPQF124G
Thermal pad, mechanical data (Package|Pins)
  • RGE|24
    • QFND136Y
Orderable Information
  • slusbp6d_oa
  • slusbp6d_pm
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DATA SHEET

BQ2429x I2C Controlled 3-A Single Cell USB Charger With Narrow VDC Power Path Management and Adjustable Voltage USB OTG

1 Features

  • 90% High efficiency Switch Mode 3-A charger
  • 3.9-V to 6.2-V Single input USB-compliant charger with 6.4-V overvoltage protection
    • USB Host or charging port D+/D- detection compatible to USB battery charger spec (BC1.2)
    • Supports nonstandard 2-A/1-A adapters detection (BQ24297)
    • Input voltage and current limit supports USB 2.0 and USB 3.0
    • Input current limit: 100 mA, 150 mA, 500 mA, 900 mA, 1 A, 1.5 A, 2 A, and 3 A
  • USB OTG with adjustable output 4.55 V to 5.5 V
    at 1 A or 1.5 A
    • Fast OTG startup (22 ms typ)
    • 90% 5-V Boost Mode efficiency
    • Accurate ±15% Hiccup Mode overcurrent protection
  • Narrow VDC (NVDC) power path management
    • Instant system on with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • 1.5-MHz Switching frequency for low profile 1.2-mm inductor
  • I2C Port for optimal system performance and status reporting
  • Autonomous battery charging with or without host management
    • Battery charge enable and preconditioning
    • Charge termination and recharge
  • High Accuracy
    • ±0.5% Charge voltage regulation
    • ±7% Charge current regulation
    • ±7.5% Input current regulation
    • ±3% Output voltage regulation in USB OTG Boost Mode
  • High Integration
    • Power path management
    • Synchronous switching MOSFETs
    • Integrated current sensing
    • Bootstrap diode
    • Internal loop compensation
  • Safety
    • Battery temperature sensing for charging and discharging in OTG Mode
    • Battery charging safety timer
    • Thermal regulation and thermal shutdown
    • Input and system overvoltage protection
    • MOSFET Over-current protection
  • Charge status outputs for LED or host processor
  • Maximum power tracking capability by input voltage regulation
  • 20-µA Low battery leakage current and support Shipping Mode
  • 4.00-mm x 4.00-mm VQFN-24 package
  • Safety-Related Certifications:
    • TUV IEC 62368 Certification (BQ24297)

2 Applications

  • Tablet PC, smart phone, internet devices
  • Portable audio speaker
  • Handheld computers, PDA, and POS

3 Description

The BQ24296/BQ24297 are highly-integrated switch-mode battery charge management and system power path management devices for 1 cell Li-Ion and Li-polymer batteries in a wide range of smart phone and tablet applications.

Device Information(1)
PART NUMBERPACKAGEBODY SIZE (NOM)
BQ24296/7VQFN (24)4.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
GUID-3BEE2C11-B891-4C04-AC92-4D67D7A7AC09-low.gif Application Schematic

4 Revision History

Changes from Revision C (December 2016) to Revision D (April 2023)

  • Added TUV IEC 62368 Certification FeatureGo
  • Changed BTST from anode to cathode and REGN from cathode to anode in descriptionsGo
  • Updated inclusive terminology throughout data sheetGo

Changes from Revision B (November 2014) to Revision C (December 2016)

  • Changed CE to CE for BQ24297 in Pin FunctionsGo
  • Changed VREF to VREGN in Figure 9-8 Go
  • Changed 20°C to –20°C and VREF to VREGN in Figure 9-9 Go
  • Changed Equation 1 Go
  • Changed Bit 3 RESET from 1 to 0 in Table 9-11 Go
  • Changed Bit 2 RESET from 1 to 0 in Table 9-11 Go
  • Changed 0 to 1 for REG05 Bit 2 Reset in Table 9-12 Go
  • Changed 1 to 0 for REG05 Bit 1 Reset in Table 9-12 Go
  • Changed DPDM_EN to IINDET_EN in Table 9-14 Go
  • Changed D+/D– to Input current limit in Table 9-14 Go
  • Added note to Figure 10-1 Go
  • Added note to Figure 10-2 Go
  • Changed last paragraph in Section 10.2.2.3 sectionGo

Changes from Revision A (October 2013) to Revision B (November 2014)

  • Added Handling 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
  • Changed front page schematicGo
  • Changed REG01[4] = 1 to REG01[5] = 1 in OTG descriptionGo
  • Added (10kΩ NTC thermister only) to QON descriptionGo
  • Added ESD information to Handling Ratings Go
  • Changed ICHG = 1792 mA in IICHG_REG_ACC test conditionsGo
  • Changed falling to rising in VHTF Go
  • Changed VHTF TYP to 47.2% Go
  • Changed Input high threshold (OTG) MIN to 1.1 VGo
  • Changed Table 9-2 Go
  • Changed Figure 9-5 Go
  • Changed RT1 = 5.25 kΩ Go
  • Deleted and LSFET from Voltage and Current Monitoring in Buck Mode descriptionGo
  • Deleted HSFET and from Voltage and Current Monitoring in Boost Mode descriptionGo
  • Changed text in Section 9.3.5.4.1 Go
  • Changed REG09[5] to REG09[3] in Battery Over-Voltage Protection (BATOVP) sectionGo
  • Changed REG09 Bit 3 description 1 – Battery OVP Go

Changes from Revision * (September 2013) to Revision A (October 2013)

  • Deleted H from BQ24297 PART NUMBERGo

 
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