ZHCSBB1D July 2013 – March 2018 UCC28740
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Detailed Description
-
8 Application and Implementation
- 8.1 Application Information
- 8.2
Typical Application
- 8.2.1 Design Requirements
- 8.2.2
Detailed Design Procedure
- 8.2.2.1 Custom Design With WEBENCH® Tools
- 8.2.2.2 Standby Power Estimate and No-Load Switching Frequency
- 8.2.2.3 Input Bulk Capacitance and Minimum Bulk Voltage
- 8.2.2.4 Transformer Turns-Ratio, Inductance, Primary Peak Current
- 8.2.2.5 Transformer Parameter Verification
- 8.2.2.6 VS Resistor Divider, Line Compensation
- 8.2.2.7 Output Capacitance
- 8.2.2.8 VDD Capacitance, CVDD
- 8.2.2.9 Feedback Network Biasing
- 8.2.3 Application Curves
- 9 Power Supply Recommendations
- 10Layout
-
11器件和文檔支持
- 11.1
器件支持
- 11.1.1 開發(fā)支持
- 11.1.2
器件命名規(guī)則
- 11.1.2.1 電容術(shù)語（以法拉為單位）
- 11.1.2.2 占空比術(shù)語
- 11.1.2.3 頻率術(shù)語（以赫茲為單位）
- 11.1.2.4 電流術(shù)語（以安培為單位）
- 11.1.2.5 電流和電壓調(diào)節(jié)術(shù)語
- 11.1.2.6 變壓器術(shù)語
- 11.1.2.7 功率術(shù)語（以瓦特為單位）
- 11.1.2.8 電阻術(shù)語（以 Ω 為單位）
- 11.1.2.9 時序術(shù)語（以秒為單位）
- 11.1.2.10 電壓術(shù)語（以伏特為單位）
- 11.1.2.11 交流電壓術(shù)語（以 VRMS 為單位）
- 11.1.2.12 效率術(shù)語
- 11.2 文檔支持
- 11.3 接收文檔更新通知
- 11.4 社區(qū)資源
- 11.5 商標
- 11.6 靜電放電警告
- 11.7 Glossary
- 11.1
器件支持
- 12機械、封裝和可訂購信息
8.2 Typical Application
The UCC28740 is well suited for use in isolated off-line systems requiring high efficiency and fault protection features such as USB compliant adapters and chargers for consumer electronics such a smart phones, tablet computers, and cameras. A 10-W application for a USB charger is shown in Figure 18.
This procedure outlines the steps to design a constant-voltage, constant-current flyback converter using the UCC28740 controller. See Figure 18 for component names and network locations. The design procedure equations use terms that are defined below.
Figure 18. Design Procedure Application Example