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EEPW首頁(yè) > 模擬技術(shù) > 設計應用 > 基于SSL1623PH設計的開(kāi)關(guān)電源LED驅動(dòng)技術(shù)

基于SSL1623PH設計的開(kāi)關(guān)電源LED驅動(dòng)技術(shù)

作者: 時(shí)間:2011-05-08 來(lái)源:網(wǎng)絡(luò ) 收藏
本文介紹了SSL1623PH主要特性和優(yōu)勢,方框圖以及典型應用電路圖.NXP 公司的SSL1623PH是開(kāi)關(guān)電源(SMPS)控制器,能直接從通用電壓火線(xiàn)(80V-276V)整流電壓工作,它集成了6.5Ω和650 V的功率開(kāi)關(guān),可調頻率以方便設計,具有可調過(guò)流保護,以及欠壓保護,溫度保護和短路保護,主要用在LED鎮流器,外觀(guān)照明,LED點(diǎn)照明以及商業(yè)照明.
SSL1623PH主要特性和優(yōu)勢:

Integrated power switch: 6.5 Ω and 650 V

Operates from universal AC mains supplies, 80 V to 276 V

Adjustable frequency for flexible design

RC oscillator for load insensitive regulation loop constant

Valley switching for minimum switch-on loss

Adjustable overcurrent protection

Undervoltage protection

Temperature protection

Short-circuit winding protection

Safe restart mode for system fault conditions

Simple application with both primary and secondary (opto) feedback

16-pin DIP package

SSL1623PH應用:

LED ballasts

Contour lighting

LED spotlights

Channel letter lighting

Down lighting

Commercial lighting (retail displays)

圖1.SSL1623PH方框圖

圖2.SSL1623PH典型應用電路圖-初級檢測


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