ZHCSNC6D
september 2009 – may 2021
BQ24050
,
BQ24052
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings #GUID-2D40D94D-8E9B-4250-B39D-57145C9518DB/SLUS9405873
6.2
ESD Ratings
6.3
Recommended Operating Conditions #GUID-C5354C38-DF78-4F74-91ED-68706C55D3F9/SLUS9401392
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Switching Characteristics
6.8
Typical Characteristics
6.8.1
Power Up, Down, OVP, Disable and Enable Waveforms
6.8.2
Protection Circuits Waveforms
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Power Down, or Undervoltage Lockout (UVLO)
7.3.2
Power Up
7.3.3
D+, D– Detection
7.3.4
New Charge Cycle
7.3.5
Overvoltage Protection (OVP) – Continuously Monitored
7.3.6
CHG Pin Indication
7.3.7
CHG LED Pullup Source
7.3.8
Input DPM Mode (VIN-DPM or IN-DPM)
7.3.9
OUT
7.3.10
ISET
7.3.11
TS
7.3.12
Termination and Timer Disable Mode (TTDM) -TS Pin High
7.3.13
Timers
7.3.14
Termination
7.3.15
Battery Detect Routine
7.3.16
Refresh Threshold
7.3.17
Starting a Charge on a Full Battery
7.4
Device Functional Modes
7.4.1
Sleep Mode
7.5
Programming
7.5.1
PRE_TERM – Precharge and Termination Programmable Threshold
7.5.2
ISET2
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
BQ2405x Charger Application Design Example
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Program the Fast Charge Current, ISET
8.2.1.2.2
Program the Termination Current Threshold, ITERM
8.2.1.2.3
TS Function
8.2.1.2.4
CHG
8.2.1.2.5
Selecting IN and OUT Pin Capacitors
8.2.1.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Thermal Considerations
10.3.1
Leakage Current Effects on Battery Capacity
11
Device and Documentation Support
11.1
Device Support
11.1.1
第三方产品免责声明
11.2
Documentation Support
11.2.1
Related Documentation
11.3
接收文档更新通知
11.4
支持资源
11.5
Trademarks
11.6
静电放电警告
11.7
术语表
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DSQ|10
MPDS335B
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsnc6d_oa
zhcsnc6d_pm
11.6
静电放电警告
静电放电 (ESD) 会损坏这个集成电路。德州仪器 (TI) 建议通过适当的预防措施处理所有集成电路。如果不遵守正确的处理和安装程序,可能会损坏集成电路。
ESD 的损坏小至导致微小的性能降级,大至整个器件故障。精密的集成电路可能更容易受到损坏,这是因为非常细微的参数更改都可能会导致器件与其发布的规格不相符。