描述 Description

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.

特性 Features

1、3-channel constant current LED driver
1.1、4- level IMAX selections: 9/18/37/75mA
1.2、256 current levels setting for each LED
1.3、Supports 256*256*256 color-mixing
2、256-level PWM dimming, 12-bit PWM resolution
3、Audio synchronization, both brightness ａｎｄ color change with audio input
3.1、Analog audio input range: 0~2.8Vpp
3.2、Pre-amplifier with AGC gain adjustable from -12dB to +26dB
3.3、8bit ADC ａｎｄ digital processing
3.4、Multiple audio-sync effects selectable
4、Automatic breathing light with flexible pattern configuration ａｎｄ running mode
4.1、three independent pattern controllers
4.2、pulses repeating, multiple colors alternative
4.3、multiple patterns running successively ｏｒ cyclically
5、400kHz fast I2C interface , 1.8V ~ 3.3V
6、Single power supply, 2.4V~5.5V
7、Low power consumption
8、FCQFN8L 1.2mmx1.2mmx0.37mm package