Semtech’s new SC442 is a 10-channel white LED driver with an integrated 3 A boost power switch. The device is capable of driving up to 120 LEDs at up to 30 mA per channel and is packaged in a low-profile 4 x 4 x 0,6 mm, 28-pin MLPQ package. The device operates across a wide input voltage range of 4,5 V to 21 V for use with lithium ion battery packs or regulated 5 V, 12 V or 18 V power supplies. It is capable of up to 42 V output for driving up to 12 white LEDs per channel. The device is compatible with boost or SEPIC topologies. It also transitions seamlessly to bypass (or linear) mode when the input voltage is greater than the output voltage. A synchronisation feature eliminates inter-modulation noise found in backlight systems utilising multiple driver ICs.
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Opto-Electronics
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Opto-Electronics
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Opto-Electronics
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Opto-Electronics
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