The MC34846 represents a high efficiency LED driver for use in backlighting LCD displays from 10" to 17+". Operating from supplies of 5V to 24V, the IC output voltage can be set up to 51V allowing 15+ LED’s in serial in each of the 6 strings. The maximum current in each string is 30mA. The LED current matching between the 6 strings is within ±1.5%. The LED current is set using a resistor to ground.
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