ZHCSTL7I
February 2007 – November 2023
LM5116
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Switching Characteristics
5.7
Typical Performance Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
High Voltage Start-Up Regulator
6.3.2
Enable
6.3.3
UVLO
6.3.4
Oscillator and Sync Capability
6.3.5
Error Amplifier and PWM Comparator
6.3.6
Ramp Generator
6.3.7
Current Limit
6.3.8
HO Output
6.3.9
Thermal Protection
6.4
Device Functional Modes
6.4.1
Soft-Start and Diode Emulation
7
Application and Implementation
7.1
Application Information
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.2.1
Custom Design with WEBENCH® Tools
7.2.2.2
Timing Resistor
7.2.2.3
Output Inductor
7.2.2.4
Current Sense Resistor
7.2.2.5
Ramp Capacitor
7.2.2.6
Output Capacitors
7.2.2.7
Input Capacitors
7.2.2.8
VCC Capacitor
7.2.2.9
Bootstrap Capacitor
7.2.2.10
Soft Start Capacitor
7.2.2.11
Output Voltage Divider
7.2.2.12
UVLO Divider
7.2.2.13
MOSFETs
7.2.2.14
MOSFET Snubber
7.2.2.15
Error Amplifier Compensation
7.2.2.16
Comprehensive Equations
7.2.2.16.1
Current Sense Resistor and Ramp Capacitor
7.2.2.16.2
Modulator Transfer Function
7.2.2.16.3
Error Amplifier Transfer Function
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
第三方产品免责声明
8.1.2
Development Support
8.1.2.1
Custom Design with WEBENCH® Tools
8.2
接收文档更新通知
8.3
支持资源
8.4
Trademarks
8.5
静电放电警告
8.6
术语表
9
Revision History
10
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
PWP|20
MHTS001G
散热焊盘机械数据 (封装 | 引脚)
PWP|20
PPTD289
订购信息
zhcstl7i_oa
zhcstl7i_pm
8.5
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。