JAJSGH5B August   2015  – November 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 概要（続き）
  6. 6 Pin Configuration and 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  Electrical Characteristics: Supply Current
    6. 7.6  Electrical Characteristics: I/O
    7. 7.7  Electrical Characteristics: ADC
    8. 7.8  Electrical Characteristics: Power-On Reset
    9. 7.9  Electrical Characteristics: Oscillator
    10. 7.10 Electrical Characteristics: Data Flash Memory
    11. 7.11 Electrical Characteristics: Register Backup
    12. 7.12 SMBus Timing Specifications
    13. 7.13 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 Primary (1st Level) Safety Features
      2. 8.3.2 Secondary (2nd Level) Safety Features
      3. 8.3.3 Charge Control Features
      4. 8.3.4 Fuel Gauging
      5. 8.3.5 Lifetime Data Logging
      6. 8.3.6 Authentication
      7. 8.3.7 Battery Parameter Measurements
        1. 8.3.7.1 Current and Coulomb Counting
        2. 8.3.7.2 Voltage
        3. 8.3.7.3 Temperature
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
      1. 8.5.1 Physical Interface
      2. 8.5.2 SMBus Address
      3. 8.5.3 SMBus On and Off State
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Schematic
      2. 9.2.2 Design Requirements
      3. 9.2.3 Detailed Design Procedure
        1. 9.2.3.1 Measurement System
          1. 9.2.3.1.1 Cell Voltages
          2. 9.2.3.1.2 External Average Cell Voltage
          3. 9.2.3.1.3 Current
          4. 9.2.3.1.4 Temperature
        2. 9.2.3.2 Gas Gauging
        3. 9.2.3.3 Charging
          1. 9.2.3.3.1 Fast Charging Voltage
          2. 9.2.3.3.2 Fast Charging Current
          3. 9.2.3.3.3 Other Charging Modes
        4. 9.2.3.4 Protection
        5. 9.2.3.5 Peripheral Features
          1. 9.2.3.5.1 LED Display
          2. 9.2.3.5.2 SMBus Address
      4. 9.2.4 Application Performance Plots
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
      1. 11.1.1 Power Supply Decoupling Capacitor
      2. 11.1.2 MRST Connection
      3. 11.1.3 Communication Line Protection Components
      4. 11.1.4 ESD Spark Gap
    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 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

8.1 Overview

The bq78350-R1 Li-Ion and LiFePO4 Battery Management Controller is the companion to the bq769x0 family of Analog Front End (AFE) protection devices. This chipset supports 3-series to 15-series cell applications with capacities up to 320 Ah, and is suitable for a wide range of portable or stationary battery applications. The bq78350-R1 device provides an accurate fuel gauge and state-of-health (SoH) monitor, as well as the cell balancing algorithm and a full range of voltage-, current-, and temperature-based protection features.

The battery data that the bq78350-R1 device gathers can be accessed via an SMBus 1.1 interface, and state-of-charge (SoC) data can be displayed through optional LED or LCD display configurations. Battery history and diagnostic data are also kept within the device in non-volatile memory and are available over the same SMBus interface.