z 2.7V-5.5V input range z 1x/1.5x auto-adjust charge pump z LED fault detection z Programmable 8 level LED currents from 3mA to 25mA z < ±2% LED maximum current mismatch .

where a smaller board space is critical. The LED current is programmable from 3mA to 25mA in a 3mA step by applying digi.

The PT4302 is a 2-channel 1×/1.5× auto-adjust charge pump white LED driver with LED fault detection. The auto-adjust charge pump achieves high efficiency for an Li-lion battery supply. LED fault detection feature allows the PT4302 to be self-adjusted.

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