Würth Elektronik has launched an evaluation board for its dimmable LED Step Down High Current Module (LDHM).
The MagI³C-LDHM module integrates an efficient and safe LED power module with analogue and PWM (pulse width modulation) dimming functions. The thermally optimized layout meets the EMC requirements of EN55032 / CISPR32 Class B.
The evaluation board allows developers to use these DC-DC converters with integrated controller IC, inductors and capacitors, and the Gerber data are available for free download.
The power module delivers up to 450 mA to power up to 16 LEDs in series with input voltages from 4.5 V to 60 V. The MagI³C-LDHM can be used to implement all kinds of lighting solutions both indoors and outdoors such as RGBW lamps or horticulture lamps with 95 percent efficiency. The protective circuit integrated in the LDHM controller protects the electronics against thermal overload, electrical damage, and LED short circuits.
Jumpers allow an output current of 300 mA, 350 mA, 400 mA or 450 mA to be easily set on the Evaluation Board. An additional pad offers the possibility of setting output current individually between 300 mA and 450 mA by selecting an appropriate resistor.
The Evaluation Board LDHM is available from stock. The corresponding Power Module can also be ordered from stock in any quantity without a minimum order quantity. Würth Elektronik provides free samples of the module.
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