NXP公司的SSL2103是用于調光LED照明的開關電源(SMPS)控制器.作為一款多用途AC/DC LED照明控制器，SSL2103具有更寬的功率適用范圍和更好的調光兼容性，令其適用于可調及不可調LED照明燈。SSL2103除具有SSL2101和SSL2102的功能和性能外，還可以滿足更高功率的應用,在正常工作溫度下的壽命可以超過75000小時。演示板外形尺寸可以應用于E27、GU10或者PARx 燈。本文介紹了SSL2103主要特性和優勢, 方框圖, 亮度控制框圖, 降壓和反激配置框圖以及230 V 12 W E27裝飾燈LED驅動器演示板主要特性,電路圖和材料清單.
SSL2103: SMPS controller IC for dimmable LED lighting
SSL2103 is a Switched Mode Power Supply (SMPS) controller IC designed for LED lighting applications. It is an extension of the NXP SSL2101/SSL2102 product platform, allowing easy design of derivative applications.
When used in combination with a phase cut dimmer connected directly to a rectified mains, it provides dimmability to the application.
In dimmer applications, 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 permitting the:
control of an external power switch to allow the IC to provide any power
control of external bleeder transistors to provide extended dimmer interoperability
The device includes a circuit that allows start-up directly from the rectified mains voltage.
SSL2103主要特性和優勢:
Easy migration to existing lighting control infrastructures, TRIAC and transistor Dimmers
Compatible with most dimming solutions
Optimized efficiency with valley switching managed by built-in circuitry
Built-in demagnetization detection
Built-in OverTemperature Protection (OTP)
Short-Winding Protection (SWP) and OverCurrent Protection (OCP)
Internal VCC generation allowing start-up from rectified mains voltage
Natural dimming curve by logarithmic correction, optimized for human eye response,down to 1 %
SSL2103應用:
The SSL2103 is suitable for various power requirements including:
Retro-fit lamps
LED modules such as LED spots and down-lights
LED strings suitable for retail displays etc.
圖1.SSL2103方框圖
圖2.SSL2103亮度控制框圖
圖3.SSL2103降壓配置框圖
圖4.SSL2103反激配置框圖
SSL2103 230 V 12 W E27裝飾燈LED驅動器演示板
SSL2103 230 V 12 W E27 retrofit LED driver demo board
This SSL2103 user manual is intended for 230 V applications of 12 W demo boards of E27-type (and similar type) retrofit light sources.
The circuit implements a Boundary Conduction Mode (BCM) buck converter. It is mains dimmable for both forward phase (triac) dimmers, and reverse phase (transistor) dimmers. It is designed for demonstrating high performance and high efficiency. It produces a 400 mA regulated output current to drive 10 LEDs at a 230 V (AC) input. With the help of an external MOSFET, an efficiency of up to 85 % can be achieved.
This demo board is connected to a high AC voltage (up to 265 V). Avoid touching the demo board during operation. An isolated housing is obligatory when used in uncontrolled, non-laboratory environments. Galvanic isolation of the mains phase using a fixed or variable transformer (Variac) is always recommended.
LED驅動器演示板主要特性:
Key reference board features include:
• Buck converter operating in Boundary Conduction Mode (BCM)
• Designed to operate with an input voltage of 230 V at 50 Hz, 10 %
• Optimized for an output power of 12 W (10 LEDs) at 400 mA output current
• Active damper and inrush current limiter
• Main dimmable with leading and trailing dimmers
• Intrinsically protected against short circuit
圖5.LED驅動器演示板外形圖
圖6.LED驅動器演示板電路圖
LED驅動器演示板材料清單:
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