ZHCSEI6
January 2016
LM5140-Q1
PRODUCTION DATA.
1
特性
2
应用
3
说明
4
简化电路原理图
5
修订历史记录
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
Switching Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
High Voltage Start-up Regulator
8.3.2
VCC Regulator
8.3.3
Oscillator
8.3.4
SYNIN and SYNOUT
8.3.5
Enable
8.3.6
Power Good
8.3.7
Output Voltage
8.3.8
Minimum Output Voltage Adjustment
8.3.9
Current Sense
8.3.10
DCR Current Sensing
8.3.11
Error Amplifier and PWM Comparator
8.3.12
Slope Compensation
8.4
Device Functional Modes
8.4.1
Hiccup Mode Current Limiting
8.4.2
Standby Mode
8.4.3
Soft-Start
8.4.4
Diode Emulation
8.4.5
High and low-side Drivers
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
Inductor Calculation
9.2.2.2
Current Sense Resistor
9.2.2.3
Output Capacitor
9.2.2.4
Input Filter
9.2.2.5
EMI Filter Design
9.2.2.6
MOSFET Selection
9.2.2.7
Driver Slew Rate Control
9.2.2.8
Sub-Harmonic Oscillation
9.2.2.9
Control Loop
9.2.2.10
Error Amplifier
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Procedure
11.2
Layout Example
12
器件和文档支持
12.1
器件支持
12.2
社区资源
12.3
商标
12.4
静电放电警告
12.5
Glossary
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RWG|40
MPQF420
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsei6_oa
5 修订历史记录
日期
修订版本
注释
2016 年 1 月
*
最初发布版本。