ZHCSNF1 February   2021 BQ25960

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  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
    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  Charging System
      2. 9.3.2  Battery Charging Profile
      3. 9.3.3  Device Power Up
      4. 9.3.4  Device HIZ State
      5. 9.3.5  Dual Input Bi-Directional Power Path Management
        1. 9.3.5.1 ACDRV Turn-On Condition
        2. 9.3.5.2 Single Input from VAC to VBUS without ACFET-RBFET
        3. 9.3.5.3 Single Input with ACFET1
        4. 9.3.5.4 Dual Input with ACFET1-RBFET1
        5. 9.3.5.5 Dual Input with ACFET1-RBFET1 and ACFET2-RBFET2
        6. 9.3.5.6 OTG and Reverse TX Mode Operation
      6. 9.3.6  Bypass Mode Operation
      7. 9.3.7  Charging Start-Up
      8. 9.3.8  Adapter Removal
      9. 9.3.9  Integrated 16-Bit ADC for Monitoring and Smart Adapter Feedback
      10. 9.3.10 Device Modes and Protection Status
        1. 9.3.10.1 Input Overvoltage, Overcurrent, Undercurrent, Reverse-Current and Short-Circuit Protection
        2. 9.3.10.2 Battery Overvoltage and Overcurrent Protection
        3. 9.3.10.3 IC Internal Thermal Shutdown, TSBUS, and TSBAT Temperature Monitoring
      11. 9.3.11 INT Pin, STAT, FLAG, and MASK Registers
      12. 9.3.12 Dual Charger Operation Using Primary and Secondary Modes
      13. 9.3.13 CDRVH and CDRVL_ADDRMS Functions
    4. 9.4 Programming
      1. 9.4.1 F/S Mode Protocol
    5. 9.5 Register Maps
      1. 9.5.1 I2C Registers
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Standalone Application Information (for use with main charger)
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curves
  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 第三方产品免责声明
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 接收文档更新通知
    4. 13.4 支持资源
    5. 13.5 Trademarks
    6. 13.6 静电放电警告
    7. 13.7 术语表
  14. 14Mechanical, Packaging, and Orderable Information

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订购信息

9.3.5.5 Dual Input with ACFET1-RBFET1 and ACFET2-RBFET2

In this scenario, both ACFET1-RBFET1 and ACFET2-RBFET2 are populated and the device supports dual input. The table below summarizes the connection, register control and status functions. Connect input with high OVP threshold to VAC1.

Table 9-4 Dual Input with Both ACFET1-RBFET1 and ACFET2-RBFET2 Summary
INPUT CONFIGURATIONDUAL INPUT
External FET connectionACFET1-RBFET1, ACFET1-RBFET2
Input pin connection

VAC1 connected to input source 1

VAC2 connected to input source 2

No input source allowed to connect to VBUS

ACDRV pin connectionACDRV1 and ACDRV2 active
ACDRV1_STAT

0: ACDRV1 OFF

1: ACDRV1 ON

Once device is in dual input configuration with ACFET1-RBFET1 and ACFET2-RBFET2, the host can use this bit to swap the input between VAC1 and VAC2 if both VAC1 and VAC2 are valid.

ACDRV2_STAT

0: ACDRV2 OFF

1: ACDRV2 ON

Once device is in dual input configuration with ACFET1-RBFET1 and ACFET2-RBFET2, the host can use this bit to swap the input between VAC1 and VAC2 if both VAC1 and VAC2 are valid.

DIS_ACDRV_BOTH

0: Allow ACDRV to turn on. By default, ACDRV1 is turned on if the conditions of ACDRV turn on are met, ACDRV1_STAT=1 and ACDRV2_STAT =0. In On-The-GO (OTG) or Reverse TX Mode, refer to OTG and Reverse TX Mode Operation session for turn on precedence.

1: Force both ACDRV to turn off, both ACDRV1_STAT and ACDRV2_STAT become 0.
ACRB1_CONFIG_STAT1
ACRB2_CONFIG_STAT1
EN_HIZ

0: Allow ACDRV to turn on for the port w/ VAC present if the conditions of ACDRV turn on are met.

ACDRV1 is turned on since VAC1 is the primary input source when both VAC1 and VAC2 present and the turn on conditions are met.

1: Turns off both ACDRV
GUID-20210113-CA0I-CCZR-12SP-RPWBD3DVBW6Z-low.gifFigure 9-6 Two Inputs with ACFET-RBFET1 and ACFET-RBFET2