NXP公司的SSL2102是开关电源(SMPS)控制器,集成了直接连接到火线整流的切相调光器, 设计用来驱动LED器件,并支持大多数调光解决方案.器件包括高压功率开关和直接起动电路,主要用在25W以下的LED驱动.本文介绍了SSL2102主要特性,方框图,应用电路以及19-22W调光LED驱动器演示板电路图和230VAC与120VAC时的材料清单(BOM).
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. The device includes a high-voltage power switch and a circuit to allow direct start-up from the rectified mains voltage. Furthermore the device includes high-voltage circuitry to supply the phase cut dimmer

SSL2102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 dedicated built-in circuitry

Built-in demagnetization detection

The IC has Over Temperature Protection (OTP) built-in

Short-Winding Protection (SWP) and Over Current Protection (OCP)

The IC has internal VCC generation that allows start-up from rectified mains voltage

Natural dimming curve by logarithmic correction

Limited external components required due to high integration level

Thermal enhanced SO20 wide body package.

SSL2102应用:

The SSL2102 is suitable for high efficiency and high power factor SSL applications below 25 W, these include:

SSL retro-fit lamps (e.g. GU10, E27) from 8 W to 15 W.

LED modules, separate power supplies, e.g. LED spots, down-lights from 15 W to 25 W

LED strings, e.g. retail display up to a maximum of 25 W



图1.SSL2102方框图

图2.SSL2102应用框图

SSL2102 19 W - 22 W LED驱动器

The SSL2102 19 W to 22 W LED driver is a solution for a professional application with multiple high power LEDs that requires galvanic isolation and a safe output voltage. It is mains dimmable for both forward phase (triac) dimmers, and reverse phase (transistor)dimmers. It can generate up to 22 W output power, which is equal to a 150 W incandescent lamp (at 63 Lumen/W). Examples are shelf lighting, down lighting, LED lighting for bathrooms etc. The design gives an example of how to make a driver that is suitable for small form factor applications such as retrofit lamps.


图4.SSL2102 19 W - 22 W LED驱动器演示板外形图

图5.SSL2102 19 W - 22 W LED驱动器演示板电路图
230VAC材料清单(BOM):


120VAC材料清单(BOM):