ZHCSLI5
September 2020
LM34966-Q1
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
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
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
Clock Synchronization (UVLO/SYNC/EN Pin)
8.3.6
Current Sense and Slope Compensation (CS Pin)
8.3.7
Current Limit and Minimum On-time (CS Pin)
8.3.8
Feedback and Error Amplifier (FB, COMP Pin)
8.3.9
Power-Good Indicator (PGOOD Pin)
8.3.10
Hiccup Mode Overload Protection
8.3.11
Maximum Duty Cycle Limit and Minimum Input Supply Voltage
8.3.12
MOSFET Driver (GATE Pin)
8.3.13
Overvoltage Protection (OVP)
8.3.14
Thermal Shutdown (TSD)
8.4
Device Functional Modes
8.4.1
Shutdown Mode
8.4.2
Standby Mode
8.4.3
Run Mode
9
Application and Implementation
9.1
Power-On Hours (POH)
9.2
Application Information
9.3
Typical Application
9.3.1
Design Requirements
9.3.2
Detailed Design Procedure
9.3.2.1
Custom Design With WEBENCH® Tools
9.3.2.2
Recommended Components
9.3.2.3
Inductor Selection (LM)
9.3.2.4
Output Capacitor (COUT)
9.3.2.5
Input Capacitor
9.3.2.6
MOSFET Selection
9.3.2.7
Diode Selection
9.3.2.8
Efficiency Estimation
9.3.3
Application Curve
9.4
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
第三方产品免责声明
12.1.2
Development Support
12.1.2.1
Custom Design With WEBENCH® Tools
12.2
接收文档更新通知
12.3
支持资源
12.4
Trademarks
12.5
静电放电警告
12.6
术语表
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
PWP|14
MPDS370A
散热焊盘机械数据 (封装 | 引脚)
PWP|14
PPTD332B
订购信息
zhcsli5_oa
8.3
Feature Description