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Texas Instruments LM3445 | Demoboard PMP4327A
Non-isolated Dimmable LED Driver with improved line regulation
Overview
| Topology | Buck Converter |
| Input voltage | 90-132 V |
| Output 1 | 12.4 V / 0.31 A |
| IC revision | A |
Description
This reference design demonstrates a high efficiency non-isolated dimmable LED driver solution using LM3445. With additional feed-forward circuit, improved line regulation <+/-2% performance is achieved. The input range is 90~132Vac and output is 40V310mA.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(mΩ) | fres(MHz) | Version | Pins | Type | Mount | L(mm) | H(mm) | Working Voltage(V (AC)) | Operating Temperature | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 3900 µH, 0.22 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance3900 µH | Rated Current0.22 A | Saturation Current @ 10%0.27 A | DC Resistance8050 mΩ | Self Resonant Frequency0.88 MHz | VersionStandard | – | – | MountTHT | Length7.8 mm | Height9.5 mm | – | Operating Temperature -40 °C up to +125 °C | ||||
 | WR-PHD Pin Header - Single, –, 3 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | Rated Current3 A | – | – | – | – | Pins1 | TypeStraight | MountTHT | Length2.54 mm | – | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C |