New Large Brightness LED Driver for Rugged, Outside Readable LCD Shows SC446 three channel increase LED driver gives as much as 100mA for each channel change present for higher reliability, indoor/outdoor readable shows
CAMARILLO, Calif., Semtech Corp. /quotes/comstock/15 !smtc/quotes/nls/smtc (SMTC 17.92, 0.37, two.11%) , a top provider of analog and combined sign semiconductors nowadays introduced the SC446, a three channel higher brightness LED (HB LED) driver using an built-in two.5A enhance energy swap. The gadget is able of driving as much as 36 HB LEDs at as much as 100mA for each channel. The SC446 operates throughout a broad input voltage variety of four.5V to 27V, generating it perfect for use with automotive batteries or regulated 5V, 12V or 24V energy materials. The SC446 expands Semtech's well-known HB LED driver platform for mid measurement LCD panels in indoor/outdoor shows for automotive, industrial, white items, avionics, clinical and gaming gear apps exactly where the large reliabilitytiffany style table lamps, shock resistance and mercury cost-free rewards of LEDs are displacing standard fluorescent (CCFL) bulbs.
These kinds of rugged LCD panels demand an ultra brilliant mild supply for viewing in immediate sunlight. The added style tolerance from the SC446 meets the demands of time and temperature. The SC446 gives outstanding LCD illumination with as much as 100mA for each channel. Furthermore, it characteristics a rugged, sixteen pin thermally improved TSSOP bundle for reduced running temperature and lengthy daily life at large ambient ailments. Moreover, 1mm pin spacing minimizes the danger of pin to pin faults arising from PCB contamination in harsh environments.
"The changeover from CCFL to LED backlights provides LCD panel producers and programs integrators a uncomplicated, expense successful alternative for enhancing the temperature profile and shock ruggedness of their styles," stated Steve Hawley, Semtech Item Advertising Supervisor for LED Lights and Shows. "The SC446 gives a driver resolution that matches the reliability in the substantial brightness LEDs by themselves."
The SC446 features a reduced reduction inner enhance swap to supply performance of higher than 92%. As much as 50kHz PWM dimming removes audio sound complications. The the best possible LED output voltage is preserved dynamically through the inner DC DC existing mode controller. Channels may be paralleled for programs requiring reduced element anxiety and minimal temperature rise. Channels may also be independently disabled to match scaled-down panel styles. The controller switching frequency is optimized at 700kHz for minimum amount exterior L/C filter measurement and greatest functioning performance.
Moreover, the SC446 offers a clean changeover from increase to bypass functioning mode, once the input voltage is higher compared to output voltage. Existing sinks are rated as much as 40V. The controller is suitable using the SEPIC converter topology, exactly where the input voltage is higher than, or much less than, the output voltage.
The SC446 LED driver has an uncovered thermal paddle for ideal warmth sinking. The SC446 is Pb totally free, halogen free of charge and completely RoHS compliant.
The SC446 is readily available quickly in manufacturing quantities and is also priced at $1.65 every in two,five hundred piece tons. The ordering code is SC446TETRT. Analysis boards (SC446EVB) may also be offered. Semtech presents detailed style help, which includes area and factory primarily based help.
Semtech Company is actually a top provider of analog and combined sign semiconductors for large finish customer, computing, communications and industrial gear. Merchandise are created to advantage the engineering neighborhood at the same time because the worldwide neighborhood. The firm is devoted to decreasing the influence it, and its items, have around the surroundings. Inner green applications look for to decrease waste by means of materials and production manage, usage of green technologies and developing for reference reduction. Publicly traded due to the fact 1967, Semtech is outlined around the NASDAQ International Choose Market place below the image SMTC. For a lot more data, check out
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