JAJSFE4B May   2015  – May 2018

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      概略回路図
  4. 4 改訂履歴
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Supply Current
    6. 7.6  Digital Input and Output DC Characteristics
    7. 7.7  Power-On Reset
    8. 7.8  2.5-V LDO Regulator
    9. 7.9  Internal Clock Oscillators
    10. 7.10 Integrating ADC (Coulomb Counter) Characteristics
    11. 7.11 ADC (Temperature and Cell Voltage) Characteristics
    12. 7.12 Data Flash Memory Characteristics
    13. 7.13 HDQ Communication Timing Characteristics
    14. 7.14 I2C-Compatible Interface Timing Characteristics
    15. 7.15 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Fuel Gauging
      2. 8.3.2 Impedance Track Variables
      3. 8.3.3 Power Control
        1. 8.3.3.1 Reset Functions
        2. 8.3.3.2 Wake-Up Comparator
        3. 8.3.3.3 Flash Updates
      4. 8.3.4 Autocalibration
      5. 8.3.5 Communications
        1. 8.3.5.1 Authentication
        2. 8.3.5.2 Key Programming (Data Flash Key)
        3. 8.3.5.3 Key Programming (Secure Memory Key)
        4. 8.3.5.4 Executing an Authentication Query
        5. 8.3.5.5 HDQ Single-Pin Serial Interface
        6. 8.3.5.6 HDQ Host Interruption Feature
          1. 8.3.5.6.1 Low Battery Capacity
          2. 8.3.5.6.2 Temperature
        7. 8.3.5.7 I2C Interface
          1. 8.3.5.7.1 I2C Time Out
          2. 8.3.5.7.2 I2C Command Waiting Time
          3. 8.3.5.7.3 I2C Clock Stretching
    4. 8.4 Device Functional Modes
      1. 8.4.1 Power Modes
        1. 8.4.1.1 NORMAL Mode
        2. 8.4.1.2 SLEEP Mode
        3. 8.4.1.3 FULLSLEEP Mode
        4. 8.4.1.4 HIBERNATE Mode
      2. 8.4.2 System Control Function
        1. 8.4.2.1 SHUTDOWN Mode
        2. 8.4.2.2 INTERRUPT Mode
      3. 8.4.3 Security Modes
        1. 8.4.3.1 Sealing and Unsealing Data Flash
    5. 8.5 Programming
      1. 8.5.1 Standard Data Commands
        1. 8.5.1.1 Control(): 0x00 and 0x01
    6. 8.6 Register Maps
      1. 8.6.1 Pack Configuration Register
      2. 8.6.2 Pack Configuration B Register
      3. 8.6.3 Pack Configuration C Register
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 BAT Voltage Sense Input
        2. 9.2.2.2 SRP and SRN Current Sense Inputs
        3. 9.2.2.3 Sense Resistor Selection
        4. 9.2.2.4 TS Temperature Sense Input
        5. 9.2.2.5 Thermistor Selection
        6. 9.2.2.6 REGIN Power Supply Input Filtering
        7. 9.2.2.7 VCC LDO Output Filtering
    3. 9.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Decoupling
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Sense Resistor Connections
      2. 11.1.2 Thermistor Connections
      3. 11.1.3 High-Current and Low-Current Path Separation
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントのサポート
      1. 12.1.1 関連資料
    2. 12.2 コミュニティ・リソース
    3. 12.3 商標
    4. 12.4 静電気放電に関する注意事項
    5. 12.5 Glossary
  13. 13メカニカル、パッケージ、および注文情報

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

8.5.1.1 Control(): 0x00 and 0x01

Issuing a Control() command requires a subsequent 2-byte subcommand. These additional bytes specify the particular control function desired. The Control() command allows the system to control specific features of the bq27546-G1 during normal operation and additional features when the bq27546-G1 is in different access modes, as described in Table 8.

Table 8. Control() Subcommands

SUBCOMMAND NAME SUBCOMMAND CODE SEALED ACCESS DESCRIPTION
CONTROL_STATUS 0x0000 Yes Reports the status of DF Checksum, Impedance Track, and so on
DEVICE_TYPE 0x0001 Yes Reports the device type of 0x0541 (indicating bq27546-G1)
FW_VERSION 0x0002 Yes Reports the firmware version on the device type
HW_VERSION 0x0003 Yes Reports the hardware version on the device type
RESET_DATA 0x0005 Yes Returns reset data
PREV_MACWRITE 0x0007 Yes Returns previous Control() subcommand code
CHEM_ID 0x0008 Yes Reports the chemical identifier of the Impedance Track configuration
BOARD_OFFSET 0x0009 No Forces the device to measure and store the board offset
CC_OFFSET 0x000A No Forces the device to measure the CC offset
DF_VERSION 0x000C Yes Reports the data flash version of the device
SET_FULLSLEEP 0x0010 Yes Sets the CONTROL_STATUS[FULLSLEEP] bit to 1
SET_SHUTDOWN 0x0013 Yes Sets the CONTROL_STATUS[SHUTDWN] bit to 1
CLEAR_SHUTDOWN 0x0014 Yes Clears the CONTROL_STATUS[SHUTDWN] bit to 1
SET_HDQINTEN 0x0015 Yes Forces CONTROL_STATUS [HDQHOSTIN] to 1
CLEAR_HDQINTEN 0x0016 Yes Forces CONTROL_STATUS [HDQHOSTIN] to 0
STATIC_CHEM_CHKSUM 0x0017 Yes Calculates chemistry checksum
ALL_DF_CHKSUM 0x0018 Yes Reports checksum for all data flash excluding device specific variables
STATIC_DF_CHKSUM 0x0019 Yes Reports checksum for static data flash excluding device specific variables
SYNC_SMOOTH 0x001E Yes Synchronizes RemCapSmooth() and FCCSmooth() with RemCapTrue() and FCCTrue()
SEALED 0x0020 No Places the fuel gauge in SEALED access mode
IT_ENABLE 0x0021 No Enables the Impedance Track algorithm
IMAX_INT_CLEAR 0x0023 Yes Clears an Imax interrupt that is currently asserted on the RC2 pin
CAL_ENABLE 0x002D No Toggle CALIBRATION mode
RESET 0x0041 No Forces a full reset of the fuel gauge
EXIT_CAL 0x0080 No Exit CALIBRATION mode
ENTER_CAL 0x0081 No Enter CALIBRATION mode
OFFSET_CAL 0x0082 No Reports internal CC offset in CALIBRATION mode