ZHCSTL8F
April 2007 – November 2023
LM25116
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 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
Timing Resistor
7.2.2.2
Output Inductor
7.2.2.3
Current Sense Resistor
7.2.2.4
Ramp Capacitor
7.2.2.5
Output Capacitors
7.2.2.6
Input Capacitors
7.2.2.7
VCC Capacitor
7.2.2.8
Bootstrap Capacitor
7.2.2.9
Soft Start Capacitor
7.2.2.10
Output Voltage Divider
7.2.2.11
UVLO Divider
7.2.2.12
MOSFETs
7.2.2.13
MOSFET Snubber
7.2.2.14
Error Amplifier Compensation
7.2.2.15
Comprehensive Equations
7.2.2.15.1
Current Sense Resistor and Ramp Capacitor
7.2.2.15.2
Modulator Transfer Function
7.2.2.15.3
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
接收文档更新通知
8.2
支持资源
8.3
Trademarks
8.4
静电放电警告
8.5
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
zhcstl8f_oa
zhcstl8f_pm
7.2
Typical Application
Figure 7-1
5-V, 7-A Typical Application Schematic
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