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| NXP SSL2103 17W调光Greenchip LED驱动方案 | |||||
作者：NXP 文章来源：NXP 点击数： 更新时间：2012-2-2  |
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The SSL2103 is a Switched Mode Power Supply (SMPS) controller IC that operates in combination with a phase cut dimmer directly from the rectified mains. It is designed to drive LED devices. The device includes a circuit to allow direct start-up from the rectified mains voltage. For dimmer applications, an integrated dedicated circuitry optimizes the dimming curve. • SSL2101: fully integrated LED driver for lamps up to 10 W • SSL2102: fully integrated LED driver for lamps up to 25 W • SSL2103: gives the application designer flexibility to: Use an external power switch to allow the IC to provide any power Use an external bleeder transistors to provide extended dimmer interoperability SSL2103主要特性和优势: Easy migration to existing lighting control infrastructure Supports most available dimming solutions Optimized efficiency with valley switching managed by a built-in circuitry Demagnetization detection OverTemperature Protection (OTP) Short-Winding Protection (SWP) and OverCurrent Protection (OCP) Internal VCC generation allowing start-up from the rectified mains voltage Natural dimming curve by logarithmic correction, down to 1 % Suitable for flyback and buck applications SSL2103应用: SSL applications with various power requirements LED modules such as LED spots and down-lights LED strings suitable for retail displays, etc.  图1. SSL2103方框图  图2. SSL2103降压配置图  图3. SSL2103反激配置图 采用SSL2103的230 V (AC) 17 W 可调光LED驱动演示板 This user manual describes a demo board for evaluating an AC mains LED driver with a dimmer for 17 W, PAR38 LEDs using the SSL2103. It describes key features and connections to aid the design of LED drivers for typical applications. The demo board operates from an AC mains voltage of 230 V (AC). The resulting design is a trade-off between high-power factor, efficiency and dimmer compatibility, combined with high output stability and ElectroMagnetic Compatibility (EMC) compliance. 17 W 可调光LED驱动演示板主要指标:    图4.17 W PAR38 LED驱动演示板外形图  图5.17 W PAR38 LED驱动演示板(230VAC)电路图 17 W PAR38 LED驱动演示板(230VAC)材料清单:   详情请见: http://www.nxp.com/documents/data_sheet/SSL2103.pdf 和 http://www.nxp.com/documents/user_manual/UM10509.pdf |
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