JAJSJW8D september   2013  – april 2023 BQ24296 , BQ24297

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  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 サード・パーティ製品に関する免責事項
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 ドキュメントの更新通知を受け取る方法
    4. 13.4 サポート・リソース
    5. 13.5 Trademarks
    6. 13.6 静電気放電に関する注意事項
    7. 13.7 用語集
  14. 14Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

9.6.1.10 New Fault Register REG09

Figure 9-28 New Fault Register REG09 Format
76543210
WATCHDOG_FAULTOTG_FAULTCHRG_FAULT[1]CHRG_FAULT[0]BAT_FAULTReservedNTC_FAULT[1]NTC_FAULT[0]
RRRRRRRR
LEGEND: R = Read only
Table 9-16 New Fault Register REG09 Field Description(1)(2)(3)
BITFIELDTYPEDESCRIPTION
Bit 7WATCHDOG_FAULTR0 – Normal, 1- Watchdog timer expiration
Bit 6OTG_FAULTR0 – Normal, 1 – VBUS overloaded in OTG, or VBUS OVP, or battery is too low (any conditions that cannot start boost function)
Bit 5CHRG_FAULT[1]R00 – Normal, 01 – Input fault (OVP or bad source), 10 - Thermal shutdown,
11 – Charge Timer Expiration
Bit 4CHRG_FAULT[0]R
Bit 3BAT_FAULTR0 – Normal, 1 – Battery OVP
Bit 2ReservedRReserved – 0
Bit 1NTC_FAULT[1]R0-Normal 1–Cold Note: Cold temperature threshold is different based on device operates in buck or boost mode
Bit 0NTC_FAULT[0]R0-Normal 1–Hot Note: Hot temperature threshold is different based on device operates in buck or boost mode
(1) REG09 only supports single byte I2C read.
(2) All register bits in REG09 are latched fault. First time read of REG09 clears the previous fault and second read updates fault register to any fault that still presents.
(3) When adapter is unplugged, input fault (bad source) in CHRG_FAULT bits[5:4] is set to 01 once.