|
NXP公司的SSL2101是120VAC LED反激驅動器,能直接工作在火線電壓整流器,器件包括高壓功率開關,以及直接從火線電壓整流器起動的電路.支持大多數調光方案,內置了超溫保護(OTP),過流保護(OCP)和繞組短路保護(SWP),主要用在高達10W的裝飾燈如GU10,LED驅動器,高達15W的LED串以及1W-10W的LED燈.本文介紹了SSL2101主要特性, 方框圖, 反激電路圖(230V TRIAC適用)以及SSL2101光參考板主要指標,電路圖和材料清單. UM10477: SSL2101 120 V (AC) flyback task light 20 V/450 mA driver board The SSL2101 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. The device includes a high-voltage power switch and a circuit to allow start-up directly from the rectified mains voltage. Furthermore the device includes high-voltage circuitry to supply the phase cut dimmer. SSL2101主要特性: Easy migration to existing lighting control infrastructure, triac and transistor dimmers Supports majority of available dimming solutions Valley switching efficiency is optimized by built-in dedicated circuitry Built-in demagnetization detection The IC has built-in OverTemperature Protection (OTP) Short-Winding Protection (SWP) and OverCurrent Protection (OCP) The IC has internal VCC generation that allows start-up from rectified mains voltage Natural dimming curve by logarithmic correction SSL2101應用: The SSL2101 is suitable for different power requirements, these include: Retro-fit lamps, e.g. GU10, up to a maximum of 10 W LED modules, separate power supplies, e.g. LED spots, down-lights, up to a maximum of 15 W LED strings, e.g. retail display, up to a maximum of 15 W Mains isolated LED drivers up to 10 W to 15 W (flyback topology) Non mains isolate LED drivers (buck topology) with a maximum peak current of 900 mA and continuous LED current below 450 mA LED lamps 1 W to 10 W (flyback) or 450 mA (buck) 
圖1. SSL2101方框圖
圖2. SSL2101降壓配置圖
圖3. SSL2101反激配置圖
圖4. SSL2101反激電路圖(230V TRIAC適用) SSL2101光參考板 The SSL2101 task light board is a 120 V (AC), dimmable, 450 mA LED driver board. It employs a flyback converter to drive power LEDs that require galvanic isolation. The board is designed to highlight high performance dimming, wide dimmer compatibility, high efficiency and the capability of driving various numbers of LEDs.
圖5. SSL2101參考板外形圖 SSL2101光參考板指標:
圖6. SSL2101驅動板連接圖
圖7. SSL2101參考板電路圖 SSL2101參考板材料清單(BOM):
詳情請見: http://www.nxp.com/documents/data_sheet/SSL2101.pdf 和 http://www.nxp.com/documents/user_manual/UM10477.pdf |
20110627110245918.gif (73.84 KB)
