| Global Current Level |
16 |
| Current Levels for Color-Mixing |
256 |
| Channel |
18 |
| Current Levels for Dimming |
256 |
| Charging Indicator |
NO |
| Control Interface |
IIC |
| Power Supply (Max) (V) |
5.5 |
| Global Max Current(mA) |
75 |
| IO Level (V) |
1.8 |
| Audio Sync. |
YES |
| Power Supply (Min) (V) |
2.5 |
| Auto Breath |
YES |
| Temperature |
-40℃~85℃ |
| Topology |
Matrix |
| Package (mm) |
QFN 4X4-24L |
• 6 current sink and 3 current switch driving up to 18 LEDs or 6 RGBs in matrix display mode
➢Global 16 current steps, max 75mA
➢Individual 12 bit PWM dimming control
➢Individual 256 steps of constant current
• Embedded MCU, Flash ROM, reloadable lighting effect firmware for dedicated application
• Audio input, 8bit ADC, -12dB~51dB AGC for gain adjustment
• Pre-load LED lighting program
➢Flowing-water music sync lighting effect
➢Skyline breathing lighting
➢18 independent automatic breathing light
• Cascade for multi-chip synchronization
• LED current accuracy: ±10%
• LED matching accuracy: ±10%
• Low dropout voltage: 100mV
• 400kHz I2CTM interface (I2C address: 0x6A/6B)
• Single power supply, 2.7V~5.5V
• QFN4mmX4mmX0.75mm-24L package
AW22118 is a smart LED driving SoC with audio synchronization, integrated with MCU, Flash ROM, SRAM, ADC, PGA, and LED driver circuit. All lighting effect is implemented by pre-loaded firmware designed for specific application.
There are 6 constant current sinks (LED1~6) and 3 current switch (COM1~3) capable of driving up to 18 LEDs or 6 RGB LEDs in matrix display mode. Each LED has 256 current steps for brightness or color-mixing, 12-bit PWM level for dimming. When the max output current is 75mA with 1/3 cycle rate, 25mA average current is available for each LED.
Additionally, parameter configurable PGA, ADC, digital filters provide flexible sampling and process function for audio input. Unusually brilliant audio sync lighting effects could be achieved by sophisticated firmware design.
AW22118 is available in QFN4mmX4mmX0.75mm -24L package, it operates from 2.7V to 5.5V over -40℃ to +85℃.
