Up to 1.5 A Constant Current Switching Regulator for LEDs with ON/OFF Function
●The NCP3066 is a monolithic switching regulator designed to deliver constant current for powering high brightness LEDs. The device has a very low feedback voltage of 235 mV (nominal) which is
●used to regulate the average current of the LED string. In addition, the NCP3066 has a wide input voltage up to 40 V to allow it to operate from a 12 Vac or a 12−36 Vdc supply, commonly used for lighting applications as well as unregulated supplies such as rechargeable batteries.
●Features
●•Integrated 1.5 A Switch
●•Input Voltage Range from 3.0 V to 40 V
●•Logic Level Shutdown Capability
●•Low Feedback Voltage of 235 mV
●•Cycle−by−Cycle Current Limit
●•No Control Loop Compensation Required
●•Frequency of Operation Adjustable up to 250 kHz
●•Analog and Digital PWM Dimming Capability
●•Internal Thermal Shutdown with Hysteresis
●•NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
●•These are Pb−Free Devices
●Applications
●•Automotive and Marine Lighting
●•Constant Current Source, High Brightness LED Driver
●•Low Voltage and Landscape Lighting
