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I'm looking for a chip (SOT23-5) to drive 2 x 10 LEDs (10 LEDs in series, 2 strings in parallel) from lower or equal then 3.0V. So the LED current must be 40mA and the max. voltage about 35V. I could not find a suitable chip in your portfolio. Did I miss something or do you simply have no suitable chip ? Best regards Herbert Demmel
The NUD4011: Constant Current Regulator & LED Driver device is designed to replace discrete solutions for driving LEDs in AC/DC high voltage applications (up to 200 V). An external resistor allows the circuit designer to set the drive current for different LED arrays. Voltage overhead is 5V minimum. You might use one NUD4011 for one string of 10 LED's at drive current of 40mA.
Answered by: ON Semiconductor
2013-09-18 13:45:28.927