| Global Current Level |
4 |
| Current Levels for Color-Mixing |
256 |
| Channel |
3 |
| 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) |
2.4 |
| Auto Breath |
YES |
| Temperature |
-40℃~85℃ |
| Topology |
Linear |
| Package (mm) |
FCQFN 1.2X1.2-8L |
• 3-channel constant current LED driver
■ 4- level IMAX selections: 9/18/37/75mA
■ 256 current levels setting for each LED
■ Supports 256*256*256 color-mixing
• 256-level PWM dimming, 12-bit PWM resolution
• Audio synchronization, both brightness and color change with audio input
■ Analog audio input range: 0~2.8Vpp
■ Pre-amplifier with AGC gain adjustable from -12dB to +26dB
■ 8bit ADC and digital processing
■ Multiple audio-sync effects selectable
• Automatic breathing light with flexible pattern configuration and running mode
■ three independent pattern controllers
■ pulses repeating, multiple colors alternative
■ multiple patterns running successively or cyclically
• 400kHz fast I2C interface , 1.8V ~ 3.3V
• Single power supply, 2.4V~5.5V
• Low power consumption
• FCQFN8L 1.2mmx1.2mmx0.37mm package
AW2028H is three channels constant current LED driver with audio synchronization. The max output current is 4-level selectable among 9mA, 18mA, 37mA and 75mA. Each LED is 256 current levels configurable so as to achieve 256*256*256 color mixing. The 256-level dimming and 12 bits PWM resolution create fine and smooth dimming effect even in low brightness.
AW2028H integrates AGC preamplifier, ADC and digital filter to implement the audio synchronization, which allow user to synchronize the color LED with the audio input. The LED color can be programmed to switch periodically or vary directly with audio input signal. Multiple audio synchronization effects are configurable.
In shut down mode, AW2028H turn off all internal circuit and the consumption is less than 1μA. In standby mode, I2C interface works and the consumption is less than 10μA.
The device requires only 2.4V~5.5V single power supply. An I2C compatible interface in 400kHz fast mode is provided, the device address is 65H.
AW2028H is available in a ultra-thin 8 pin FCQFN 1.2mmx1.2mmx0.37mm package.
