ZHCSOB0A
july 2021 – august 2023
LM5157
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and 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
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Line Undervoltage Lockout (UVLO/SYNC/EN Pin)
8.3.2
High Voltage VCC Regulator (BIAS, VCC Pin)
8.3.3
Soft Start (SS Pin)
8.3.4
Switching Frequency (RT Pin)
8.3.5
Dual Random Spread Spectrum – DRSS (MODE Pin)
8.3.6
Clock Synchronization (UVLO/SYNC/EN Pin)
8.3.7
Current Sense and Slope Compensation
8.3.8
Current Limit and Minimum On Time
8.3.9
Feedback and Error Amplifier (FB, COMP Pin)
8.3.10
Power-Good Indicator (PGOOD Pin)
8.3.11
Hiccup Mode Overload Protection (MODE Pin)
8.3.12
Maximum Duty Cycle Limit and Minimum Input Supply Voltage
8.3.13
Internal MOSFET (SW Pin)
8.3.14
Overvoltage Protection (OVP)
8.3.15
Thermal Shutdown (TSD)
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Standby Mode
8.4.3
Run Mode
8.4.3.1
Spread Spectrum Enabled
8.4.3.2
Hiccup Mode Protection Enabled
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
Custom Design With WEBENCH® Tools
9.2.2.2
Recommended Components
9.2.2.3
Inductor Selection (LM)
9.2.2.4
Output Capacitor (COUT)
9.2.2.5
Input Capacitor
9.2.2.6
Diode Selection
9.2.3
Application Curve
9.3
System Examples
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Examples
12
Device and Documentation Support
12.1
Device Support
12.1.1
第三方米6体育平台手机版_好二三四免责声明
12.1.2
Development Support
12.1.2.1
Custom Design With WEBENCH® Tools
12.1.3
Export Control Notice
12.2
Documentation Support
12.2.1
Related Documentation
12.3
接收文档更新通知
12.4
支持资源
12.5
Trademarks
12.6
静电放电警告
12.7
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RTE|16
MPQF149D
散热焊盘机械数据 (封装 | 引脚)
RTE|16
QFND525B
订购信息
zhcsob0a_oa
zhcsob0a_pm
12.6
静电放电警告
静电放电 (ESD) 会损坏这个集成电路。米6体育平台手机版_好二三四 (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。
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP
|
米乐app下载官网(中国)|ios|Android/通用版APP最新版
|
米乐|米乐·M6(中国大陆)官方网站
|
千亿体育登陆地址
|
华体会体育(中国)HTH·官方网站
|
千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载
|
18新利网v1.2.5|中国官方网站
|
bob电竞真人(中国官网)安卓/ios苹果/电脑版【1.97.95版下载】
|
千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装
|