4-Channel 1-wire Dimming LED Driver with Ultra Low Dropout Current Source

The AW9364 is a 4-channel ultra low dropout constant- source parallel LED driver. With the proprietary Q-Mir- ror TM technique, the AW9364 uses an internal resistor to set the bias current for four LEDs, which are matched to ±1%. The AW9364 incorporates a single wire interface to program the output current at 16 continuous steps. The AW9364 has an internal deglitch circuit for filtering the noise of the EN input. The AW9364 requires only a 50mV dropout voltage at a 20mA load. The feature makes AW9364 ideal for battery-operated systems, such as personal digital assistants. The AW9364 is available in DFN2mmx2mm-8L packages and is specified over the -40℃ to +85℃ temperature range.


l  Ultra low dropout: 50mV/20mA(typical)

l  Support up to 4 LEDs

l  LED sink current up to 20mA

l  ±1% LED current matching(typical)

l  En Pin Deglitch circuit

l  Thermal shutdown protection

l  16-step brightness control

l  ESD protection: ±8kV(HBM)

l  No EMI and switch noise

l  Packages: DFN2mmx2mm-8L


Application note

Product name Type Size Download
AW9364DNR PDF 1.11M
  • Parallel LED Number
    Control Interface
    Current Step
    Max Current (mA)
    Min Current (mA)
    Current Accuracy (%)
    Current Matching (%)
    Package (mm)
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 -8L 8 2.0 2.0 0.75 0.5 Y
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