ZHCSDI4D
March 2015 – October 2022
BQ25890
,
BQ25892
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
说明(续)
6
Device Comparison Table
7
Pin Configuration and Functions
8
Specifications
8.1
Absolute Maximum Ratings (1)
8.2
ESD Ratings
8.3
Recommended Operating Conditions
8.4
Thermal Information
8.5
Electrical Characteristics
8.6
Timing Requirements
8.7
Typical Characteristics
9
Detailed Description
9.1
Functional Block Diagram
9.2
Feature Description
9.2.1
Device Power-On-Reset (POR)
9.2.2
Device Power Up from Battery without Input Source
9.2.3
Device Power Up from Input Source
9.2.3.1
Power Up REGN Regulation (LDO)
9.2.3.2
Poor Source Qualification
9.2.3.3
Input Source Type Detection
9.2.3.3.1
D+/D– Detection Sets Input Current Limit (BQ25890)
9.2.3.3.2
PSEL/OTG Pins Set Input Current Limit (BQ25892)
9.2.3.3.3
Force Input Current Limit Detection
9.2.3.4
Input Voltage Limit Threshold Setting (VINDPM Threshold)
9.2.3.5
Converter Power-Up
9.2.4
Input Current Optimizer (ICO)
9.2.5
Boost Mode Operation from Battery
9.2.6
Power Path Management
9.2.6.1
Narrow VDC Architecture
9.2.6.2
Dynamic Power Management
9.2.6.3
Supplement Mode
9.2.7
Battery Charging Management
9.2.7.1
Autonomous Charging Cycle
9.2.7.2
Battery Charging Profile
9.2.7.3
Charging Termination
9.2.7.4
Resistance Compensation (IRCOMP)
9.2.7.5
Thermistor Qualification
9.2.7.5.1
JEITA Guideline Compliance in Charge Mode
9.2.7.5.2
Cold/Hot Temperature Window in Boost Mode
9.2.7.6
Charging Safety Timer
9.2.8
Battery Monitor
9.2.9
Status Outputs ( PG, STAT, and INT)
9.2.9.1
Power Good Indicator ( PG)
9.2.9.2
Charging Status Indicator (STAT)
9.2.9.3
Interrupt to Host (INT)
9.2.10
BATET (Q4) Control
9.2.10.1
BATFET Disable Mode (Shipping Mode)
9.2.10.2
BATFET Enable (Exit Shipping Mode)
9.2.10.3
BATFET Full System Reset
9.2.11
Current Pulse Control Protocol
9.2.12
Input Current Limit on ILIM
9.2.13
Thermal Regulation and Thermal Shutdown
9.2.13.1
Thermal Protection in Buck Mode
9.2.13.2
Thermal Protection in Boost Mode
9.2.14
Voltage and Current Monitoring in Buck and Boost Mode
9.2.14.1
Voltage and Current Monitoring in Buck Mode
9.2.14.1.1
Input Overvoltage (ACOV)
9.2.14.1.2
System Overvoltage Protection (SYSOVP)
9.2.14.2
Voltage and Current Monitoring in Boost Mode
9.2.14.2.1
VBUS Overcurrent Protection
9.2.14.2.2
Boost Mode Overvoltage Protection
9.2.15
Battery Protection
9.2.15.1
Battery Overvoltage Protection (BATOVP)
9.2.15.2
Battery Over-Discharge Protection
9.2.15.3
System Overcurrent Protection
9.2.16
Serial Interface
9.2.16.1
Data Validity
9.2.16.2
START and STOP Conditions
9.2.16.3
Byte Format
9.2.16.4
Acknowledge (ACK) and Not Acknowledge (NACK)
9.2.16.5
Target Address and Data Direction Bit
9.2.16.6
Single Read and Write
9.2.16.7
Multi-Read and Multi-Write
9.3
Device Functional Modes
9.3.1
Host Mode and Default Mode
9.4
Register Maps
9.4.1
REG00
9.4.2
REG01
9.4.3
REG02
9.4.4
REG03
9.4.5
REG04
9.4.6
REG05
9.4.7
REG06
9.4.8
REG07
9.4.9
REG08
9.4.10
REG09
9.4.11
REG0A
9.4.12
REG0B
9.4.13
REG0C
9.4.14
REG0D
9.4.15
REG0E
9.4.16
REG0F
9.4.17
REG10
9.4.18
REG11
9.4.19
REG12
9.4.20
REG13
9.4.21
REG14
10
Application and Implementation
10.1
Application Information
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Inductor Selection
10.2.2.2
Buck Input Capacitor
10.2.2.3
System Output Capacitor
10.2.3
Application Curves
10.3
System Examples
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Device Support
13.1.1
第三方米6体育平台手机版_好二三四免责声明
13.2
接收文档更新通知
13.3
支持资源
13.4
Trademarks
13.5
Electrostatic Discharge Caution
13.6
术语表
14
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RTW|24
MPQF167C
散热焊盘机械数据 (封装 | 引脚)
RTW|24
QFND125K
订购信息
zhcsdi4d_oa
zhcsdi4d_pm
10.3
System Examples
Figure 10-12
BQ25892 with PSEL Interface and USB On-The-Go (OTG)
Figure 10-13
BQ25892 with PSEL Interface and USB On-The-Go (OTG) No Thermistor Connections
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