ZHCSNP0A august   2020  – march 2021 BQ25171-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 典型特性
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Device Power Up from Input Source
        1. 7.3.1.1 ISET Pin Detection
        2. 7.3.1.2 CHM_TMR Pin Detection
        3. 7.3.1.3 VSET Pin Detection
        4. 7.3.1.4 Charger Power Up
      2. 7.3.2 Battery Charging Features
        1. 7.3.2.1 Lithium-Ion Battery Charging Profile
          1. 7.3.2.1.1 NiMH Battery Charging Profile
        2. 7.3.2.2 Charge Termination and Battery Recharge
        3. 7.3.2.3 Charging Safety Timers
        4. 7.3.2.4 Battery Cold, Hot Temperature Qualification (TS Pin)
      3. 7.3.3 Status Outputs (STAT1, STAT2)
        1. 7.3.3.1 Charging Status Indicator (STAT1, STAT2)
      4. 7.3.4 Protection Features
        1. 7.3.4.1 Input Overvoltage Protection (VIN OVP)
        2. 7.3.4.2 Output Overvoltage Protection (BAT OVP)
        3. 7.3.4.3 Output Overcurrent Protection (BAT OCP)
        4. 7.3.4.4 Thermal Regulation and Thermal Shutdown (TREG and TSHUT)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown or Undervoltage Lockout (UVLO)
      2. 7.4.2 Sleep Mode
      3. 7.4.3 Active Mode
        1. 7.4.3.1 Standby Mode
      4. 7.4.4 Fault Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 1s LiFePO4 Charger Design Example
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Program the Fast Charge Current, ISET:
          2. 8.2.1.2.2 TS Function
        3. 8.2.1.3 Application Curves
      2. 8.2.2 2s Li-Ion Charger with Power Path Design Example
        1. 8.2.2.1 Design Requirements
      3. 8.2.3 4s NiMH Charger Design Example
        1. 8.2.3.1 Design Requirements
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方产品免责声明
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 支持资源
    4. 11.4 Trademarks
    5. 11.5 静电放电警告
    6. 11.6 术语表
  13. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.7 典型特性

CIN = 1µF，COUT = 1µF，VIN = 5V，VOUT = 3.8V（除非另有说明）

GUID-20200827-CA0I-JVLW-ZPSM-CMJKDWSGNTSF-low.gif
IOUT = 10mA VOUT = 4.2 V
图 6-1 线性调整率（4.2VOUT 时为 1s）
GUID-20200827-CA0I-5150-1MPQ-GQVX7XTQPCJW-low.gif
VIN = 5V VOUT = 4.2 V
图 6-3 负载调整率（4.2VOUT 时为 1s）
GUID-20210326-CA0I-GN3X-L4CD-QQW5BSZV707R-low.png
VIN = 5V 和 12V VOUT = 3.8V 和 7.6V
图 6-5 ISET 精度与温度间的关系
GUID-20210326-CA0I-5CBP-T35G-BBPCL7JCTBQG-low.png
图 6-7 压降电压与输出电流间的关系
GUID-20200827-CA0I-PPP7-HZK9-PXVHM9XNL3B7-low.gif
CE 引脚 = 低电平 ICHG = 0A
图 6-9 输入静态电流与输入电压间的关系
GUID-20210326-CA0I-36HS-JDHF-MPNWRJ7PJQ6W-low.png
VOUT = 4.35 V
图 6-11 终止电流精度与终止电流设置间的关系
GUID-20200827-CA0I-D2KK-HD9J-9HV2W5S4ZXBP-low.gif
IOUT = 10mA VOUT = 8.4 V
图 6-2 线性调整率（8.4VOUT 时为 2s）
GUID-20200827-CA0I-DVBB-RRN5-MZBDWF99G5DW-low.gif
VIN = 5V 温度= 25ºC
图 6-4 ICHG 精度与 VOUT 间的关系
GUID-20200827-CA0I-L4J3-X0JQ-N4F1PTC0WFZJ-low.gif
VIN = 5V 和 12V IOUT = 10 mA
图 6-6 VSET 精度与温度间的关系
GUID-20200827-CA0I-DRZQ-ZTZX-SWBTTG9XXW6J-low.gif
CE 引脚 = 高电平 VOUT=0V
图 6-8 输入关断电流与输入电压间的关系
GUID-20200827-CA0I-PN2D-VGR1-9BDCX3L7M49F-low.gif
VIN = 0V
图 6-10 输出静态电流与输出电压间的关系