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.
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