ZHCSI54A
September 2016 – May 2018
BQ25890H
PRODUCTION DATA.
1
特性
2
应用
3
说明
简化原理图
4
修订历史记录
5
说明 (续)
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Typical Characteristics
8
Detailed Description
8.1
Functional Block Diagram
8.2
Feature Description
8.2.1
Device Power-On-Reset (POR)
8.2.2
Device Power Up from Battery without Input Source
8.2.3
Device Power Up from Input Source
8.2.3.1
Power Up REGN Regulation (LDO)
8.2.3.2
Poor Source Qualification
8.2.3.3
Input Source Type Detection
8.2.3.3.1
D+/D– Detection Sets Input Current Limit
8.2.3.3.2
Force Input Current Limit Detection
8.2.3.4
Input Voltage Limit Threshold Setting (VINDPM Threshold)
8.2.3.5
Converter Power-Up
8.2.4
Input Current Optimizer (ICO)
8.2.5
Boost Mode Operation from Battery
8.2.6
Power Path Management
8.2.6.1
Narrow VDC Architecture
8.2.6.2
Dynamic Power Management
8.2.6.3
Supplement Mode
8.2.7
Battery Charging Management
8.2.7.1
Autonomous Charging Cycle
8.2.7.2
Battery Charging Profile
8.2.7.3
Charging Termination
8.2.7.4
Resistance Compensation (IRCOMP)
8.2.7.5
Thermistor Qualification
8.2.7.5.1
JEITA Guideline Compliance in Charge Mode
8.2.7.5.2
Cold/Hot Temperature Window in Boost Mode
8.2.7.6
Charging Safety Timer
8.2.8
Battery Monitor
8.2.9
Status/Control Outputs (STAT, INT and DSEL)
8.2.9.1
Charging Status Indicator (STAT)
8.2.9.2
Interrupt to Host (INT)
8.2.9.3
D+/D- Multiplexer Selection Control
8.2.10
BATET (Q4) Control
8.2.10.1
BATFET Disable Mode (Shipping Mode)
8.2.10.2
BATFET Enable (Exit Shipping Mode)
8.2.10.3
BATFET Full System Reset
8.2.11
Current Pulse Control Protocol
8.2.12
D+/D- Output Driver
8.2.13
Input Current Limit on ILIM
8.2.14
Thermal Regulation and Thermal Shutdown
8.2.14.1
Thermal Protection in Buck Mode
8.2.14.2
Thermal Protection in Boost Mode
8.2.15
Voltage and Current Monitoring in Buck and Boost Mode
8.2.15.1
Voltage and Current Monitoring in Buck Mode
8.2.15.1.1
Input Overvoltage (ACOV)
8.2.15.1.2
System Overvoltage Protection (SYSOVP)
8.2.15.2
Voltage and Current Monitoring in Boost Mode
8.2.15.2.1
VBUS Overcurrent Protection
8.2.15.2.2
Boost Mode Overvoltage Protection
8.2.16
Battery Protection
8.2.16.1
Battery Overvoltage Protection (BATOVP)
8.2.16.2
Battery Over-Discharge Protection
8.2.16.3
System Overcurrent Protection
8.2.17
Serial Interface
8.2.17.1
Data Validity
8.2.17.2
START and STOP Conditions
8.2.17.3
Byte Format
8.2.17.4
Acknowledge (ACK) and Not Acknowledge (NACK)
8.2.17.5
Slave Address and Data Direction Bit
8.2.17.6
Single Read and Write
8.2.17.7
Multi-Read and Multi-Write
8.3
Device Functional Modes
8.3.1
Host Mode and Default Mode
8.4
Register Maps
8.4.1
REG00
Table 8.
REG00
8.4.2
REG01
Table 9.
REG01
8.4.3
REG02
Table 10.
REG02
8.4.4
REG03
Table 11.
REG03
8.4.5
REG04
Table 12.
REG04
8.4.6
REG05
Table 13.
REG05
8.4.7
REG06
Table 14.
REG06
8.4.8
REG07
Table 15.
REG07
8.4.9
REG08
Table 16.
REG08
8.4.10
REG09
Table 17.
REG09
8.4.11
REG0A
Table 18.
REG0A
8.4.12
REG0B
Table 19.
REG0B
8.4.13
REG0C
Table 20.
REG0C
8.4.14
REG0D
Table 21.
REG0D
8.4.15
REG0E
Table 22.
REG0E
8.4.16
REG0F
Table 23.
REG0F
8.4.17
REG10
Table 24.
REG10
8.4.18
REG11
Table 25.
REG11
8.4.19
REG12
Table 26.
REG12
8.4.20
REG13
Table 27.
REG13
8.4.21
REG14
Table 28.
REG14
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Inductor Selection
9.2.2.2
Buck Input Capacitor
9.2.2.3
System Output Capacitor
9.2.3
Application Curves
9.3
System Examples
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
文档支持
12.1.1
相关文档
12.2
接收文档更新通知
12.3
社区资源
12.4
商标
12.5
静电放电警告
12.6
术语表
13
机械、封装和可订购信息
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
zhcsi54a_oa
zhcsi54a_pm
7.7
Typical Characteristics
VBAT = 3.8 V
DCR = 10 mΩ
Figure 1.
Charge Efficiency vs Charge Current
Figure 3.
Boost Mode Efficiency vs VBUS Load Current
VBAT = 2.9 V
VBUS = 5 V
SYSMIN = 3.5 V
Figure 5.
SYS Voltage Regulation vs System Load Current
Figure 7.
BAT Voltage vs Temperature
Figure 2.
System Light Load Efficiency vs System Light Load Current
VBUS = 9 V
Figure 4.
Charge Current Accuracy vs Charge Current I
2
C Setting
VBAT = 4.2 V
Figure 6.
SYS Voltage Regulation vs System Load Current
Figure 8.
Input Current Limit vs Temperature
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