The adjustable constant current regulator (CCR) is a simple, economical and robust device designed to provide a cost effective solution for regulating current in LEDs (similar to Constant Current Diode, CCD). The CCR is based on Self-Biased Transistor (SBT) technology and regulates current over a wide voltage range. It is designed with a negative temperature coefficient to protect LEDs from thermal runaway at extreme voltages and currents.
The CCR turns on immediately and is at 20% of regulation with only 0.5 V Vak. The Radj pin allows Ireg(SS) to be adjusted to higher currents by attaching a resistor between Radj (Pin 3) and the Cathode (Pins 2/4). The Radj pin can also be left open (No Connect) if no adjustment is required. It requires no external components allowing it to be designed as a high or low-side regulator. The high anode-cathode voltage rating withstands surges common in Automotive, Industrial and Commercial Signage applications. This device is available in a thermally robust package, which is lead-free RoHS compliant and uses halogen-free molding compound. Meets AEC-Q101 standard and UL94-V0 certified.

• Robust Power Package: 1.5 Watts, Adjustable up to 40 mA, Wide Operating Voltage Range, Immediate Turn-On, Voltage Surge SuppressingProtecting LEDs, AEC-Q101 Qualified, SBT (SelfBiased Transistor) Technology, Negative Temperature Coefficient, Eliminates Additional Regulation, These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant.
• AEC-Q101 Qualified and PPAP Capable, UL94-V0 Certified