IS32LT3120
DUAL CHANNEL, LINEAR LED DRIVER WITH FADE IN/FADE OUT
GENERAL DESCRIPTION
The IS32LT3120 is a linear programmable current
regulator consisting of 2 output channels capable of up to 200mA each.
Each channel features an ON/OFF input pin to toggle the channel between the OFF condition and the source condition.
A single external resistor programs the current level for both of the channels, while a separate, single resistor programs the fade in and fade out rate for both channels.
The device integrates a 63 steps fade in and fade out algorithm (Gamma correction) which causes the output LED current to gradually ramp up to the full source value after the channel’s control pin is pulsed.
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