ZHCS520E
May 1996 – May 2019
LM2586
PRODUCTION DATA.
1
特性
2
典型 应用
3
说明
Device Images
方框图
4
修订历史记录
5
Pin Configurations
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Ratings
6.4
Thermal Information
6.5
Electrical Characteristics: 3.3 V
6.6
Electrical Characteristics: 5 V
6.7
Electrical Characteristics: 12 V
6.8
Electrical Characteristics: Adjustable
6.9
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Flyback Regulator Operation
7.3.2
Step-Up (Boost) Regulator Operation
7.3.3
Programming Output Voltage (Selecting R1 And R2)
7.3.4
Shutdown Control
7.3.5
Frequency Adjustment
7.3.6
Frequency Synchronization
8
Application and Implementation
8.1
Application Information
8.2
Typical Applications
8.2.1
Typical Flyback Regulator Applications
8.2.1.1
Design Requirements
8.2.1.1.1
Transformer Selection (T)
8.2.1.1.2
Transformer Footprints
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Custom Design With WEBENCH® Tools
8.2.1.2.2
Flyback Regulator Input Capacitors
8.2.1.2.3
Switch Voltage Limits
8.2.1.2.4
Output Voltage Limitations
8.2.1.2.5
Noisy Input Line Condition
8.2.1.2.6
Stability
8.2.2
Typical Boost Regulator Applications
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.3
System Examples
8.3.1
Test Circuits
9
Layout
9.1
Layout Guidelines
9.2
Layout Example
10
Heat Sink/Thermal Considerations
11
器件和文档支持
11.1
器件支持
11.1.1
第三方产品免责声明
11.1.2
开发支持
11.1.2.1
使用 WEBENCH® 工具创建定制设计
11.2
接收文档更新通知
11.3
社区资源
11.4
商标
11.5
静电放电警告
11.6
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
KTW|7
MPSF015
NDZ|7
MMSF005
散热焊盘机械数据 (封装 | 引脚)
KTW|7
PPTD278
订购信息
zhcs520e_oa
zhcs520e_pm
6.9
Typical Characteristics
Figure 1.
Supply Current vs Temperature
Figure 3.
Δreference Voltage vs Supply Voltage
Figure 5.
Current Limit vs Temperature
Figure 7.
Switch Saturation Voltage vs Temperature
Figure 9.
Oscillator Frequency vs Temperature
Figure 11.
Error Amp Voltage Gain vs Temperature
Figure 13.
Shutdown Supply Current vs Temperature
Figure 15.
Oscillator Frequency vs Resistance
Figure 2.
Reference Voltage vs Temperature
Figure 4.
Supply Current vs Switch Current
Figure 6.
Feedback Pin Bias Current vs Temperature
Figure 8.
Switch Transconductance vs Temperature
Figure 10.
Error Amp Transconductance vs Temperature
Figure 12.
Short Circuit Frequency vs Temperature
Figure 14.
ON
/Off Pin Current vs Voltage