ZHCSO20 may   2021 BQ25723

PRODUCTION DATA  

1.   1
2. 1 特性
3. 2 應用
4. 3 說明
5. 4 Revision History
6. 5 Description (continued)
7. 6 Device Comparison Table
8. 7 Pin Configuration and Functions
9. 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
10. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
       1. 9.3.1  Power-Up Sequence
       2. 9.3.2  Vmin Active Protection (VAP) with Battery only
       3. 9.3.3  Two-Level Battery Discharge Current Limit
       4. 9.3.4  Fast Role Swap Feature
       5. 9.3.5  CHRG_OK Indicator
       6. 9.3.6  Input and Charge Current Sensing
       7. 9.3.7  Input Voltage and Current Limit Setup
       8. 9.3.8  Battery Cell Configuration
       9. 9.3.9  Device HIZ State
       10. 9.3.10 USB On-The-Go (OTG)
       11. 9.3.11 Converter Operation
       12. 9.3.12 Inductance Detection Through IADPT Pin
       13. 9.3.13 Converter Compensation
       14. 9.3.14 Continuous Conduction Mode (CCM)
       15. 9.3.15 Pulse Frequency Modulation (PFM)
       16. 9.3.16 Switching Frequency and Dithering Feature
       17. 9.3.17 Current and Power Monitor
           1. 9.3.17.1 High-Accuracy Current Sense Amplifier (IADPT and IBAT)
           2. 9.3.17.2 High-Accuracy Power Sense Amplifier (PSYS)
       18. 9.3.18 Input Source Dynamic Power Management
       19. 9.3.19 Input Current Optimizer (ICO)
       20. 9.3.20 Two-Level Adapter Current Limit (Peak Power Mode)
       21. 9.3.21 Processor Hot Indication
           1. 9.3.21.1 PROCHOT During Low Power Mode
           2. 9.3.21.2 PROCHOT Status
       22. 9.3.22 Device Protection
           1. 9.3.22.1 Watchdog Timer
           2. 9.3.22.2 Input Overvoltage Protection (ACOV)
           3. 9.3.22.3 Input Overcurrent Protection (ACOC)
           4. 9.3.22.4 System Overvoltage Protection (SYSOVP)
           5. 9.3.22.5 Battery Overvoltage Protection (BATOVP)
           6. 9.3.22.6 Battery Discharge Overcurrent Protection (BATOC)
           7. 9.3.22.7 Battery Short Protection (BATSP)
           8. 9.3.22.8 System Undervoltage Lockout (VSYS_UVP) and Hiccup Mode
           9. 9.3.22.9 Thermal Shutdown (TSHUT)
    4. 9.4 Device Functional Modes
       1. 9.4.1 Forward Mode
          1. 9.4.1.1 System Voltage Regulation with Narrow VDC Architecture
          2. 9.4.1.2 Battery Charging
       2. 9.4.2 USB On-The-Go
       3. 9.4.3 Pass Through Mode (PTM)-Patented Technology
    5. 9.5 Programming
       1. 9.5.1 I2C Serial Interface
          1. 9.5.1.1 Timing Diagrams
          2. 9.5.1.2 Data Validity
          3. 9.5.1.3 START and STOP Conditions
          4. 9.5.1.4 Byte Format
          5. 9.5.1.5 Acknowledge (ACK) and Not Acknowledge (NACK)
          6. 9.5.1.6 Target Address and Data Direction Bit
          7. 9.5.1.7 Single Read and Write
          8. 9.5.1.8 Multi-Read and Multi-Write
          9. 9.5.1.9 Write 2-Byte I2C Commands
    6. 9.6 Register Map
       1. 9.6.1  ChargeOption0 Register (I2C address = 01/00h) [reset = E70Eh]
       2. 9.6.2  ChargeCurrent Register (I2C address = 03/02h) [reset = 0000h]
          1. 9.6.2.1 Battery Pre-Charge Current Clamp
       3. 9.6.3  ChargeVoltage Register (I2C address = 05/04h) [reset value based on CELL_BATPRESZ pin setting]
       4. 9.6.4  ChargerStatus Register (I2C address = 21/20h) [reset = 0000h]
       5. 9.6.5  ProchotStatus Register (I2C address = 23/22h) [reset = B800h]
       6. 9.6.6  IIN_DPM Register (I2C address = 25/24h) [reset = 4100h]
       7. 9.6.7  ADCVBUS/PSYS Register (I2C address = 27/26h)
       8. 9.6.8  ADCIBAT Register (I2C address = 29/28h)
       9. 9.6.9  ADCIIN/CMPIN Register (I2C address = 2B/2Ah)
       10. 9.6.10 ADCVSYS/VBAT Register (I2C address = 2D/2Ch)
       11. 9.6.11 ChargeOption1 Register (I2C address = 31/30h) [reset = 3300h]
       12. 9.6.12 ChargeOption2 Register (I2C address = 33/32h) [reset = 00B7]
       13. 9.6.13 ChargeOption3 Register (I2C address = 35/34h) [reset = 0434h]
       14. 9.6.14 ProchotOption0 Register (I2C address = 37/36h) [reset = 4A81h(2S~4s) 4A09(1S)]
       15. 9.6.15 ProchotOption1 Register (I2C address = 39/38h) [reset = 41A0h]
       16. 9.6.16 ADCOption Register (I2C address = 3B/3Ah) [reset = 2000h]
       17. 9.6.17 ChargeOption4 Register (I2C address = 3D/3Ch) [reset = 0048h]
       18. 9.6.18 Vmin Active Protection Register (I2C address = 3F/3Eh) [reset = 006Ch(2s~4s)/0004h(1S)]
       19. 9.6.19 OTGVoltage Register (I2C address = 07/06h) [reset = 09C4h]
       20. 9.6.20 OTGCurrent Register (I2C address = 09/08h) [reset = 3C00h]
       21. 9.6.21 InputVoltage(VINDPM) Register (I2C address = 0B/0Ah) [reset =VBUS-1.28V]
       22. 9.6.22 VSYS_MIN Register (I2C address = 0D/0Ch) [reset value based on CELL_BATPRESZ pin setting]
       23. 9.6.23 IIN_HOST Register (I2C address = 0F/0Eh) [reset = 4100h]
       24. 9.6.24 ID Registers
           1. 9.6.24.1 ManufactureID Register (I2C address = 2Eh) [reset = 40h]
           2. 9.6.24.2 Device ID (DeviceAddress) Register (I2C address = 2Fh) [reset = E0h]
11. 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 ACP-ACN Input Filter
          2. 10.2.2.2 Inductor Selection
          3. 10.2.2.3 Input Capacitor
          4. 10.2.2.4 Output Capacitor
          5. 10.2.2.5 Power MOSFETs Selection
       3. 10.2.3 Application Curves
12. 11Power Supply Recommendations
13. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
       1. 12.2.1 Layout Example Reference Top View
       2. 12.2.2 Inner Layer Layout and Routing Example
14. 13Device and Documentation Support
    1. 13.1 Device Support
       1. 13.1.1 第三方產(chǎn)品免責聲明
    2. 13.2 Documentation Support
       1. 13.2.1 Related Documentation
    3. 13.3 接收文檔更新通知
    4. 13.4 支持資源
    5. 13.5 Trademarks
    6. 13.6 靜電放電警告
    7. 13.7 術(shù)語表
15. 14Mechanical, Packaging, and Orderable Information

BQ25723 具有系統(tǒng)功率監(jiān)測器和處理器熱量監(jiān)測器的 I²C 1 至 4 節(jié)電池窄 VDC 降壓/升壓電池充電控制器