MCHPCL2N3-G
Overview
The CL2N3-G is a simple, three-terminal constant current LED driver designed to provide a fixed 20mA output. It operates as a linear regulator over a wide input voltage range from 5V to 90V, making it an ideal solution for driving LEDs directly from high-voltage AC or DC rails without complex switching circuitry. The device is temperature-compensated to maintain current stability across its operating range.
Why Choose This Part
The primary advantage is its simplicity, requiring no external components to set the current or stabilize the loop. Its high voltage rating of 90V allows for significant flexibility in string length, while the TO-92 package enables easy through-hole mounting and prototyping. Additionally, multiple units can be placed in parallel to increase the total output current in 20mA increments.
Applications
Key Specifications
Getting Started
To use the CL2N3-G, connect the VA pin to your supply voltage and the VB pin to the anode of your LED string; no external resistors are required for 20mA operation. Ensure the power dissipation (Voltage Drop x 20mA) does not exceed the TO-92 package thermal limits. For initial prototyping, the device can be plugged directly into a standard solderless breadboard.
