The NCL31000 from onsemi is an intelligent LED driver which combines a buck converter operating over a wide input-voltage range with diagnostics capabilities and comprehensive circuit protection functions.
The NCL31000 is also capable of performing Visible Light Communication thanks to its 50 kHz modulation bandwidth. The LED driver is compliant with the specifications of the YellowDot certification programme for indoor positioning functionality.
The NCL31000 drives LEDs with a high-efficiency buck converter which supports both high-bandwidth analog and PWM dimming down to zero current. It regulates the output current to an accuracy of ±0.1%.
Two auxiliary dc-dc converters are available to power a microcontroller and sensors. The NCL31001 is a version of the NCL31000 without the two auxiliary converters. The NCL31001 is intended for use with the NCL31000 in dual-channel LED drivers.
The diagnostics function measures the input and output current and voltage, LED temperature, and the voltage and current at the dc-dc converters. The power metrology is accurate to ±1%.
Fast safety mechanisms protect the critical blocks of the chip. They include over- and under-voltage and over-current protection of the LEDs, over-current protection of the chip, and over-temperature protection of the chip and LEDs.
Part Number: NCL31000ASGEVB
The evaluation board for the NCL31000 intelligent LED driver is supplied in an Arduino-compatible format.
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