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
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zhcstl7i_pm
1
特性
可提供新款类似产品:
LM5148
具有超低 IQ 和 DRSS 的 80V 同步降压控制器
LM5149
具有超低 IQ 和 AEF 的 80V 同步降压控制器
仿真峰值电流模式
宽工作电压范围(高达 100V)
低 I
Q
关断 (< 10µA)
驱动标准或逻辑电平
MOSFET
稳健的 3.5A 峰值栅极驱动
自由运行或同步运行至 1MHz
可选二极管仿真模式
可编程输出电压范围为 1.215V 至 80V
精度为 1.5% 的基准电压
可编程电流限制
可编程软启动
可编程线路欠压锁定
自动切换至外部辅助电源
HTSSOP-20 外露焊盘
热关断
使用 LM5116 并借助
WEBENCH®
Power Designer
创建定制设计