3-Channel LED Drivers with Multi-mode Auto Charging Indication

AW2033 is a three channels constant current LED driver with multi-mode auto charging indication function. The global max output current is 4-level selectable (5mA/10mA/15mA/30mA). The driving current of each LED is 16 levels configurable so as to achieve 4096 color mixing. The 256-level exponential PWM creates fine and smooth dimming effect even in low brightness. AW2033 provides multi-mode auto charging indication under the condition of low battery voltage. When the voltage of battery is too low, and the I 2 C interface can’t work, the wanted lighting can be output on pin LED0 by triggering pin CHRG. The pin SET1/SET2 select the lighting effect and the active trigger level of pin CHRG respectively. AW2033 contains three independent pattern controllers. Three LEDs can be controlled to work synchronously or individually according to different applications.


l  3-channel constant current LED drivers

n  4-level global maximum current: 5mA, 10mA, 15mA, 30mA

n  16-level individual current, 4096 mixed-color available

n  256-level individual PWM dimming

l  Automatic breathing lighting

n  Three individual pattern controllers

n  Individual and sync control selectable

l  LED current accuracy: ±3%

l  LED matching accuracy: ±3%

l  Low dropout voltage: 50mV

l  Low power consumption

n  ISTB<5uA in standby mode

l  UVLO and OT protection

l  Single power supply, 2.5V~5.5V

l  1.8V~3.3V,400kHz I2C interface (address 0x45)

l  DFN 2mm×2mm-10L package


Application note

Product name Type Size Download
AW2033DNR PDF 1.6M
  • LED Channel
    Charging Indicator
    Auto Breath
    Global Max Current(mA)
    Package (mm)
    Global Current Level
    Individual Current Level
    PWM Level
    Power Supply (V)
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
DFN 2.0×2.0×0.75 -10L 10 2.0 2.0 0.75 0.4 Y
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