AW9818E 77-Channel LED Driver with I2C Interface

AW9818E is a 77 channels LED driver with I2C interface support. AW9818E uses awinic distinctive Free-Flash TM wisdom dimming technology, each LED can breathing individually with full autonomous or half autonomous mode that reduces serial port communication load of main chipset maximally . When one breathing complete in AW9818E, INTN pin will trigger an interrupt request. The function is used to synchronize the LED breathing between main chipset and AW9818E. 1.8V I2C interface of 400kHz fast mode is provided, AW9818E supports SHDN pin shutdown or internal soft shutdown function. AW9818E can configure to output the internal clock (4MHz) or external clock input. AW9818E supports cascading for synchronization of chips. AW9818E is QFN 4mmX4mm-28L package, need two power  supply,  VDD  (2.4V~3.3V)  and  VBAT(3.4V~5.5V).


l  77-channel LED or 21 RGB drivers

l  64-level currents setting and breathing individually for each LED

l  4-level IMAX selections: 10/20/30/40 mA

l  INTN pin interrupt output, low active

l  Compatible I2C Interface, VIO: 1.8V ~ 3.3V

l  I2C address: 0x3A/0x3B

l  Shutdown mode control: SHDN pin shutdown or software shutdown. Support register reset control and standby mode control

l  CLKIO pin can output internal OSC clock(4MHz)or select external input clock

l  QFN 4mmX4mm-28L package

l  Power supply: VDD (2.4V~3.3V) and VBAT (3.4V~5.5V).


Application note

Title Type Size Date Download
DS_AW9818E_EN_V1.1_77 Channels LED Driver with I2C Interface.pdf PDF 1.4M 2019-07-30
  • LED Channel
    Charging Indicator
    Auto Breath
    Global Max Current(mA)
    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
QFN 4.0×4.0×0.75 -28L 28 4.0 4.0 0.75 0.4 Y
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