36-Channel RGB LED Driver with I2C Control

Features

  • Drives up to 36 LEDs (12 RGBs)
  • Multiplexed LED Current Driver Outputs
    • Only 12 PCB Traces to the LEDs
    • 23kHz 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
  • 36 Independent Exponential Fade-Engines
    • Ultra-Smooth 3072-Step Fade Resolution
    • 3-bit Programmable Fade Rate
    • Dramatically Reduces Software Complexity
  • Patented1 BrightExtend™ Technology
    • Maintains Color-Accuracy and PSRR for Battery-Powered Applications with Low Vin
  • Proprietary CoolExtend™ Technology
    • 2-bit Programmable Max. Die-Temp Regulation
  • 0.4µA Automatic Shutdown (Standby) Current
  • 1MHz I2C Interface with Multiple Slave Addresses
  • 2.5V to 5.5V Operating Supply Voltage Range
  • AEC-Q100 Qualified
  • -40°C to 85°C Operating Temperature Range
  • 20 pin UQFN 3x3mm (0.4mm pitch)
1. US Patent 8,482,216 B1

I2C Slave Address

Part Number Description I2C Slave Address
KTD2061Q 36-Channel RGB LED Driver with I2C Control 0x68 default
KTD2060Q 36-Channel RGB LED Driver with I2C Control 0x68B alternative
KTD2059Q 36-Channel RGB LED Driver with I2C Control 0x68A alternative
KTD2058Q 36-Channel RGB LED Driver with I2C Control 0x69 alternative

Key Electrical Specifications

Vin (Min) Vin (Max) Vout (Min)  Vout (Max) Supply Current Standby Current Shutdown Current LED Channels Current per Channel Operating Temperature Interface Package
2.5V 5.5V 2.5V 5.5V 1.6mA Typ. 0.3µA Typ. 0.3µA Typ. 36 24mA -40 to 85°C 1MHz I2C UQFN33-20

Applications

  • AI Smart Speakers, Bluetooth / WiFi Loudspeakers
  • Automotive Panel, Accent and Mood Lighting
  • IoT, Gaming PC/Keyboards/Controllers/VR, Robots

Typical Application Diagram