SC440A www.
DataSheet4U.
com High Efficiency Integrated Driver for 6-Strings of 30mA LEDs Description The SC440A is a high-efficiency multiple string WLED driver with an integrated boost converter.
It operates over a wide input range from 4.
5V to 21V with a maximum output voltage of 42V and a 2A internal power switch.
It can drive up to 42V output voltage in 6 strings with current up to 30mA per string.
The string-to-string current matching is 1% typical, 3% maximum and the overall efficiency is greater than 90% due to the low current sense voltage and a low-impedance internal power switch.
The wide PWM dimming range boasts a ratio of 500: 1.
The 800kHz switching frequency enables the user to...

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