onsemi NCL31000 yellow dot

The NCL31000 is an intelligent LED driver targeting luminaire applications. The NCL31000 incorporates a high efficiency buck LED driver that supports both high-bandwidth analog and PWM dimming down to zero current. Two auxiliary DC-DC converters are included to power a microcontroller and other sensors.  Diagnostics are included to measure input and output current and voltage, LED temperature and DC-DC voltages. The device is ideal for YellowDot™ LED drivers.

Key features

• High efficiency buck LED driver
• Integrated 3.3V buck converter
• Adjustable 2.5 to 24V buck converter
• High modulation bandwidth (~50kHz); VLC capable

Additional features

• I2C or SPI serial interface
• Benefits:
  • Deep dimming to zero with 0,1% accuracy
  • Low EMI design
  • Protection against LED shorts and opens
  • IC and LED over temperature protection
  • Diagnostic functions to measure voltages and current

Applications

• LED lighting
• Backlight LED Driver
• YellowDot™ LED drivers
• Intelligent LED Luminaries