AN-2098 LM3450 Evaluation Board based 15 W LED Driver
Reference Design using part LM3450MT by Texas Instruments
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For End Products
- Downlighting
- Indoor & Outdoor Lighting
- Lighting Dimmer
- Office Troffer
- Power Supplies
Description
- AN-2098 LM3450 Evaluation Board is designed to provide an AC to LED solution for a 15W LED load. Specifically, it takes an AC mains input and converts it to a constant current output of 350mA for a series string of 1 to 14 LEDs (maximum LED stack voltage of 45V). There are two assembly versions designed to operate from two different nominal AC input voltages, 120 VAC or 230 VAC. The board employs a two stage design with an LM3450 flyback primary stage and an LM3409 secondary stage. The LM3450 provides an isolated 50V regulated output voltage and a power factor corrected input current. The LM3409 uses the 50V flyback output as its input and provides a constant current of 350mA to the LED load
Key Features
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Input Voltage90 to 135 (AC) V
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Output Voltage50 V
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Output Current0.35 A
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Output Power15 W
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Number of Derived Elements1 to 14
Featured Parts (14)
| Part Number | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
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LMV431ACM5X/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | Buy | |
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CNY17F-3S-TA1 | Lite-On Technology | Transistor and Photovoltaic Output Photocouplers | Optocoupler DC-IN 1-CH Transistor DC-OUT 6-Pin PDIP SMD T/R | Buy | |
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LM3409HVMY/NOPB | Texas Instruments | LED Drivers | LED Driver 2000uA Supply Current 10-Pin HVSSOP EP T/R | Buy | |
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LM3409HVMYX/NOPB | Texas Instruments | LED Drivers | LED Driver 2000uA Supply Current 10-Pin HVSSOP EP T/R | Buy | |
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CNY17F-3S | Lite-On Technology | Transistor and Photovoltaic Output Photocouplers | Optocoupler DC-IN 1-CH Transistor DC-OUT 6-Pin PDIP SMD | Buy | |
|
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LMV431ACM5/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | Buy | |
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LMV431ACM5/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | Buy | |
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LMV431ACM5X/NOPB | Texas Instruments | Voltage References | V-Ref Adjustable 1.24V to 30V 15mA 5-Pin SOT-23 T/R | Buy | |
|
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LM3409HVMY/NOPB | Texas Instruments | LED Drivers | LED Driver 2000uA Supply Current 10-Pin HVSSOP EP T/R | Buy | |
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LM3409HVMYX/NOPB | Texas Instruments | LED Drivers | LED Driver 2000uA Supply Current 10-Pin HVSSOP EP T/R | Buy | |
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LM3450MTX/NOPB | Texas Instruments | LED Drivers | LED Driver 9V/12V/15V/18V 16-Pin TSSOP T/R | Buy | |
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LM3450MT/NOPB | Texas Instruments | LED Drivers | LED Driver 9V/12V/15V/18V 16-Pin TSSOP Tube | Buy | |