Description
The HSDL-9000 is a low cost, digital-output ambient light photo sensor in miniature industry standard PLCC lead-free surfacemount package. It incorporates a photodiode, which peaks in human luminosity curve at 550 nm. Hence, it provides an excellent responsivity that is close to the response of human eyes, as shown in Figure 2.

FEATUREs
• Excellent responsivity which peaks
   in the human luminosity curve at
   550 nm
   Close responsivity to the human eye
• Miniature PLCC surface-mount
   package
   Height – 1.1 mm
   Width – 4.0 mm
   Depth – 3.2 mm
• Ease of design with digital output
   Integrated photodiode and
   analog to digital output circuitry
• Enable fine control of the backlight
   intensity with adjustable sensitivity
   control
   3 digital levels
   An Analog Gain Control
• Minimum power consumption
   30 µA typical idle (standby) current
   <10 nA typical shutdown current
• Guaranteed temperature
   performance
   –25°C to 85°C
• 2.7 ≤ VCC ≤ 3.6 V
• Lead-free package
• Low cost

APPLICATIONs
• Detection of ambient light to control
   display backlighting
   Mobile devices – mobile phones,
      PDAs
   Automotive – dashboard
   Consumer appliances – audio sets
• Daylight and artificial light exposed
   devices