12-Channel RGB LED Drivers with I2C Control
- 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 (%) |
No Load ICC – Enabled (mA) |
No Load ICC – Shutdown (µA) |
Dropout (mV) |
Package |
2.7V |
5.5V |
1 |
12 |
I2C |
24 |
2.5 – 5.5 |
±5 |
1.0 Typ. |
0.4 Typ. |
210 |
UTDFN22.8 |
Typical Application Diagram