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Typical Waveforms
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16 Typical Waveforms
All curves taken at V
IN
= 48V with configuration in typical application for driving twelve power LEDs with six
output channels active and 200 mA output current per channel. T
A
= 25°C, unless otherwise specified.
Direct PWM Dimming Mode DC Interface Mode
250Hz 50% dimming duty at DIMn pin 10Hz 3V to 2V ramp at DIMn pin
PWM dimming PWM dimming
I
OUTn
delay at V
DIMn
rising I
OUTn
delay at V
DIMn
falling
I
OUTn
ch-ch delay I
OUTn
ch-ch delay
I
OUTn
rising I
OUTn
falling
20 AN-2255 LM3463 Evaluation Board SNVA642 – May 2012
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