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¡¡¡¡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. 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 14% 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 £¨Pin 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 anodecathode voltage rating withstands surges common in Automotive£¬ Industrial and Commercial Signage applications. This device is available in a thermally robust package and is qualified to stringent AEC?Q101 standard£¬ which is lead-free RoHS compliant and uses halogen-free molding compound.