NXPSSL2101LED反激驅(qū)動解決方案

LED反激驅(qū)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(guān),以及直接從火線電壓整流器起動的電路.支持大多數(shù)調(diào)光方案,內(nèi)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(dá)10W的裝飾燈如GU10,LED驅(qū)動器,高達(dá)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(biāo),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(yīng)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(biāo):



圖6. SSL2101驅(qū)動板連接圖

圖7. SSL2101參考板電路圖
SSL2101參考板材料清單(BOM):