LM3445 – 220VAC, 7W Dimmable Isolated

(ACTIVE) PMP7751

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Description

This demonstration board highlights the performance of a LM3445 based Flyback LED driver solution that can be used to power a single LED string consisting of 6 / 7 series connected LEDs from an 198 VRMS to 264 VRMS, 50 Hz input power supply. This is a two-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency. Refer to the LM3445 datasheet for detailed instructions. A bill of materials is included that describes the parts used on this demonstration board.

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Parametrics
 PMP7751.1
(Output Voltage 1)
Vin (Min) (V)198
Vin (Max) (V)264
Vout (Nom) (V)20
Iout (Max) (A).35
Output Power (W)7
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Non Sync

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM3445  Triac Dimmable Offline LED Driver  LED Driver  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 285 05 Jan 2012 29
Design files (5)
Title Abstract Type Size (KB) Date Views
PDF 90 05 Jan 2012 14
PDF 98 05 Jan 2012 15
PDF 90 05 Jan 2012 25
PDF 123 05 Jan 2012 32
ZIP 275 05 Jan 2012 15


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