The onsemi NCL38046 is a constant current/constant voltage operational amplifier for use in the secondary side of an LED driver. The amplifier has a low input-offset voltage to provide for precise constant current regulation.
Use of the NCL38046 enables designers to implement driver designs that can dim LED lights to less than 1% of full brightness. The amplifier also supports programmable constant power regulation, protecting the LED load and providing a wide output-voltage operating range.
The NCL38046 is available in two versions:
