Description
Features
- Drives up to 12 LEDs (4 RGBs)
- Multiplexed LED Current Driver Outputs
- Only 4 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
- 12 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
- -40°C to 85°C Operating Temperature Range
- 20 pin UQFN 3x3mm (0.4mm pitch)
1. US Patent 8,482,216 B1
Key Electrical Specifications
| Vin (Min) | Vin (Max) | Vout (Min) | Vout (Max) | Supply Current | Standby Current | Shutdown Current | # of Channels | Current per Channel | Operating Temperature | Interface | Package |
| 2.7V | 5.5V | 2.5V | 5.5V | 1.6mA Typ. | 0.3µA Typ. | 0.3µA Typ. | 12 | 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
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