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參數(shù)資料
| 型號： | SSL2102 |
| 廠商： | NXP Semiconductors N.V. |
| 中文描述： | Demoboard description SSL2102 12W-230V Triac dimmable fly-back demonstration board The SSL2102 is a Switched Mode Power Supply (SMPS) controller IC that operates in combination with a phase cut dimmer directly from rectified mains. It is designed to drive LED devices. Our SSL2102 demonstration boards are suitable for 120 V or 230 V mains. |
| 文件頁數(shù)： | 4/29頁 |
| 文件大?。?/td> | 797K |
| 代理商： | SSL2102 |
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AN10876
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Application note
Rev. 2 — 23 June 2011
4 of 29
NXP Semiconductors
AN10876
Buck converter for SSL applications
2. Scope
2.1 Scope
This application note discusses the general principles and considerations to be addressed
when designing a buck converter and especially a buck converter for LEDs in Boundary
Conduction Mode with valley detect. There is a separate chapter for losses and key
component calculations. This application note can be used when designing a buck
converter using several of NXPs LED driver ICs, such as SSL1523, SSL2101, SSL2102,
SSL2108, SSL2109 and UBA 3070. Dimmability and mains dimmability are not discussed
within this application note, as this is specific for each IC solution.
2.2 General philosophy of the application note
The layout of this document is constructed to enable each chapter on a related subject to
be read with a minimum of cross-references to other documents or data sheets. This
leads to repetition as some of the information within this application note is also available
in other, more dedicated application notes. In most cases, typical values are given to
enhance readability.
Section 3
discusses the theory of operation. It demonstrates how voltages and
currents flow during one converter cycle. It also gives a short overview of the trade-off
between CCM and BCM/DCM modes.
Section 4
provides information on how to design key components, such as the
inductor value. It describes the resultant calculation of peak current with BCM, when
valley detection is used.
Section 5
shows some power calculations, to give the designer an insight into the loss
mechanisms in the converter, and how choices affect efficiency.
Section 6
briefly covers LED current tolerance and stability.
2.3 Related documents and tools.
Further information regarding design tools and the driver ICs mentioned in this document
can be either found on the product page for the specific IC (Internet link), or are available
through the local sales office.
相關(guān)PDF資料 |
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| SSOA | SURFACE MOUNT SUPER FAST RECTIFIERS |
| SSOA | SURFACE MOUNT SUPER FAST RECOVERY RECTIFIER |
| ST-2A | High-Performance LED(FM and Baseband Video) |
| STB6082 | SURFACE MOUNT BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSOR |
| STB60E5 | SURFACE MOUNT BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SSL2102DB/17W120V,598 | 功能描述:LED 照明開發(fā)工具 17W 120V dimmable LED Drvr RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| SSL2102T/DB/FLYB120V,598 | 功能描述:LED 照明開發(fā)工具 SSL Mains Dimmable LED Driver Demo RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| SSL2102T/DB/FLYB120V598 | 制造商:NXP Semiconductors 功能描述:IC LED DRVR SOP-20 |
| SSL2102T/DB/FLYB230V,598 | 功能描述:LED 照明開發(fā)工具 SSL Mains Dimmable LED Driver Demo RoHS:否 制造商:Fairchild Semiconductor 產(chǎn)品:Evaluation Kits 用于:FL7732 核心: 電源電壓:120V 系列: 封裝: |
| SSL2102T/DB/FLYB230V598 | 制造商:NXP Semiconductors 功能描述:IC LED DRVR SOP-20 |
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