JAJS843E
April 1998 – June 2019
LM2588
PRODUCTION DATA.
1
特長
2
代表的なアプリケーション
3
概要
Device Images
フライバック・レギュレータ
4
改訂履歴
5
概要(続き)
6
Pin Configurations
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Ratings
7.4
Electrical Characteristics: 3.3 V
7.5
Electrical Characteristics: 5 V
7.6
Electrical Characteristics: 12 V
7.7
Electrical Characteristics: Adjustable
7.8
Electrical Characteristics: All Output Voltage Versions
7.9
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Flyback Regulator Operation
8.3.2
Step-Up (Boost) Regulator Operation
8.3.3
Shutdown Control
8.3.4
Frequency Adjustment
8.3.5
Frequency Synchronization
8.3.6
Programming Output Voltage (Selecting R1 And R2)
8.3.7
Short-Circuit Condition
9
Application and Implementation
9.1
Application Information
9.2
Typical Applications
9.2.1
Typical Flyback Regulator Applications
9.2.1.1
Design Requirements
9.2.1.1.1
Transformer Selection (T)
9.2.1.1.2
Transformer Footprints
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Custom Design With WEBENCH® Tools
9.2.1.2.2
Flyback Regulator Input Capacitors
9.2.1.2.3
Switch Voltage Limits
9.2.1.2.4
Output Voltage Limitations
9.2.1.2.5
Noisy Input Line Condition
9.2.1.2.6
Stability
9.2.2
Typical Boost Regulator Applications
9.2.2.1
Design Requirements
9.2.2.2
Detailed Design Procedure
9.3
System Examples
9.3.1
Test Circuits
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
Heat Sink/Thermal Considerations
11
デバイスおよびドキュメントのサポート
11.1
デバイス・サポート
11.1.1
デベロッパー・ネットワークの製品に関する免責事項
11.1.2
開発サポート
11.1.2.1
WEBENCH®ツールによるカスタム設計
11.2
ドキュメントの更新通知を受け取る方法
11.3
コミュニティ・リソース
11.4
商標
11.5
静電気放電に関する注意事項
11.6
Glossary
12
メカニカル、パッケージ、および注文情報
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
KTW|7
MPSF015
NDZ|7
MMSF005
サーマルパッド・メカニカル・データ
KTW|7
PPTD278
発注情報
jajs843e_oa
jajs843e_pm
7.9
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