12-Channel RGB LED Drivers with I2C Control

Features

  • Drives up to 12 LEDs (4 RGBs)
  • Multiplexed LED Current Driver Outputs
    • Only 4 PCB Traces to the LEDs
    • 20.8kHz MUX Frequency Prevents Audio Noise
  • 14 Million Colors
    • LED Current: 125µA to 24mA in 125µA Steps
    • Night-Mode: 8µA to 1.5mA in 8µA Steps
    • 5% Max. Current Accuracy & Matching
  • 12 Independent Exponential Fade-Engines
    • Ultra-Smooth 3072-Step Fade Resolution
    • 3-bit Programmable Fade Rate
  • Flexible Pattern Generator with Watchdog
  • Optional AutoBreathe™ Mode (KTD2052B)
  • Patented BrightExtend™ Technology
    • Maintains Color-Accuracy and PSRR for Battery-Powered Applications with Low Vin
  • Proprietary CoolExtend™ Technology
    • 2-bit Programmable Maximum Die-Temp
  • 0.4µA Automatic Shutdown (Standby) Current
  • 1MHz I2C Serial Interface
  • 2.5V to 5.5V Operating Supply Voltage Range
  • -40°C to +85°C Operating Temperature Range
  • 8 pin UDFN 2x2mm (0.5mm pitch)

Applications

  • AI Smart Speakers, Bluetooth / WiFi Loudspeakers
  • Automotive Indicator and Ambiance Lighting
  • IoT, Gaming, Toys, Indicator / Button Lighting

Key Electrical Specifications

Vin (MIN) Vin (Max) Number of LEDs/Channel LED Channels Brightness Control Max. Current per Channel (mA) V(OUT) (V) Accuracy (%) IQ (µA) IQ shutdown (SDA=SCL=1.8V) (µA) Dropout (mV) Package
2.7V 5.5V 1 12 I2C 24 2.5 – 5.5 ±5 0.4 0.4 210 UTDFN22.8

Typical Application Diagram