ZHCSCT5A September 2014 – January 2017 TPS54561-Q1
PRODUCTION DATA.
- 1 特性
- 2 應用范圍
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 Fixed-Frequency PWM Control
- 7.3.2 Slope Compensation Output Current
- 7.3.3 Pulse-Skipping Eco-mode Control Scheme
- 7.3.4 Low-Dropout Operation and Bootstrap Voltage (BOOT)
- 7.3.5 Error Amplifier
- 7.3.6 Adjusting the Output Voltage
- 7.3.7 Enable and Adjust Undervoltage Lockout
- 7.3.8 Soft-Start and Tracking Pin (SS/TR)
- 7.3.9 Sequencing
- 7.3.10 Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
- 7.3.11 Accurate Current-Limit Operation and Maximum Switching Frequency
- 7.3.12 Synchronization to RT/CLK Pin
- 7.3.13 Power Good (PWRGD Pin)
- 7.3.14 Overvoltage Protection
- 7.3.15 Thermal Shutdown
- 7.3.16 Small-Signal Model for Loop Response
- 7.3.17 Simplified Small-Signal Model for Peak-Current-Mode Control
- 7.3.18 Small-Signal Model for Frequency Compensation
- 7.4 Device Functional Modes
-
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 Selecting the Switching Frequency
- 8.2.2.3 Output Inductor Selection (L(O))
- 8.2.2.4 Output Capacitor
- 8.2.2.5 Catch Diode
- 8.2.2.6 Input Capacitor
- 8.2.2.7 Soft-Start Capacitor
- 8.2.2.8 Bootstrap Capacitor Selection
- 8.2.2.9 Undervoltage Lockout Set Point
- 8.2.2.10 Output Voltage and Feedback Resistor Selection
- 8.2.2.11 Compensation
- 8.2.2.12 Discontinuous Conduction Mode and Eco-mode Boundary
- 8.2.2.13 Power Dissipation Estimate
- 8.2.3 Safe Operating Area
- 8.2.4 Application Curves
- 8.2.5 Inverting Power Supply
- 8.2.6 Split-Rail Power Supply
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機械、封裝和可訂購信息
11 器件和文檔支持
11.1 器件支持
11.1.1 開發支持
有關 TPS54560、TPS54561 和 TPS54561-Q1 系列 Excel 設計工具的信息，請參見 SLVC452。
11.2 文檔支持
11.2.1 相關文檔
相關文檔如下：
11.2.2 使用 WEBENCH® 工具定制設計方案
請單擊此處，借助 WEBENCH®Power Designer 并使用 TPS54561-Q1 器件定制設計方案
- 首先輸入您的 VIN、VOUT 和 IOUT 要求。
- 使用優化器撥盤可優化效率、封裝和成本等關鍵設計參數并將您的設計與德州儀器 (TI) 的其他可行解決方案進行比較。
- WEBENCH Power Designer 提供一份定制原理圖以及羅列實時價格和組件可用性的物料清單。
- 在多數情況下，您還可以：
- 運行電氣仿真，觀察重要波形以及電路性能
- 運行熱性能仿真，了解電路板熱性能
- 將定制原理圖和布局方案導出至常用 CAD 格式
- 打印設計方案的 PDF 報告并與同事共享
- 有關 WEBENCH 工具的詳細信息，請訪問 www.ti.com/WEBENCH。
11.3 接收文檔更新通知
如需接收文檔更新通知，請訪問 www.cqwzaes.cn 網站上的器件產品文件夾。點擊右上角的提醒我 (Alert me) 注冊后，即可每周定期收到已更改的產品信息。有關更改的詳細信息，請查閱已修訂文檔中包含的修訂歷史記錄。
11.4 社區資源
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use.
-
TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers.
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Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support.
11.5 商標
Eco-mode, E2E are trademarks of Texas Instruments.
WEBENCH is a registered trademark of Texas Instruments.
Excel is a trademark of Microsoft Corporation.
11.6 靜電放電警告
這些裝置包含有限的內置 ESD 保護。 存儲或裝卸時，應將導線一起截短或將裝置放置于導電泡棉中，以防止 MOS 門極遭受靜電損傷。
11.7 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.