SGM6606
3-channel RGB LED driver with independent current control and 12-bit dimming for color mixing applications
Product Overview
Description
The SGM6606 is a dedicated RGB LED driver with three independent channels for red, green, and blue LED control.
Each channel supports up to 500mA with 12-bit dimming resolution, enabling precise color mixing and smooth color transitions.
The I2C interface allows easy control from microcontrollers, making it ideal for smart lighting and display applications.
Product Series
SGM
Primary Application
Smart lighting
Key Features
- 3 independent RGB channels
- 500mA per channel capability
- 12-bit dimming resolution
- I2C control interface
- High 95% efficiency
- Color temperature adjustment
- Programmable fade rates
Specifications
| Input Voltage | 4.5V to 24V |
|---|---|
| Channel Current | 500mA per channel |
| Dimming Resolution | 12-bit (4096 levels) |
| Switching Frequency | 1MHz |
| Efficiency | Up to 95% |
| Interface | I2C with 4 addresses |
| Package | QFN-20 (4mm x 4mm) |
Applications
Smart lighting
Electronic system design
Mood lighting
Electronic system design
Architectural lighting
Electronic system design
Stage lighting
Electronic system design
Display backlighting
Electronic system design
FAE Expert Insights
"The SGM6606 is a fantastic solution for RGB lighting applications requiring precise color control. The 12-bit dimming resolution per channel enables smooth color transitions without visible steps. I have used this part in smart home lighting products where users expect high-quality color mixing. The I2C interface makes integration with microcontrollers straightforward, and the multiple I2C addresses allow multiple drivers on the same bus. The 500mA per channel is sufficient for most RGB LED applications. One tip: the thermal management is important when running all three channels at high current - ensure adequate PCB copper area for heat dissipation."
3-channel RGB driver with 12-bit dimming for precise color control
— Jennifer Liu, BeiLuo
Frequently Asked Questions
How many SGM6606 can share the same I2C bus?
Up to 4 SGM6606 devices can share the same I2C bus using the address selection pins. Each device has a unique I2C address (0x30, 0x31, 0x32, 0x33), allowing control of up to 12 RGB channels from a single I2C bus.
Use address pins to configure unique I2C addresses for multiple devices on the same bus.