lx1970 Microsemi Corporation, lx1970 Datasheet
lx1970
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lx1970 Summary of contents
Page 1
... The LX1970 is a new technology light sensor with spectral response emulates the human eye. This device is ideal for monitoring ambient light for brightness control systems in flat panel displays. It has a unique photo diode arrangement (patents ...
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... C 39°C/W ASE ESCRIPTION SNK SRC Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET VDD 1 ...
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... Visible Light Sensor RODUCTION ATA HEET LX1970 Min Typ Max 2¹ 5 1000 ≤ ≤ T 85° LX1970 Min Typ Max 2 5 110 -30 -38 -46 0 +0 – 0.3 V – 0 300 520 ±60 2 ...
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... However, because the match is not perfect, there is still wavelength dependency particularly at the ends of the visible spectrum. In the case of the LX1970 the peak photo response is at 520nm, however depending on the light source, what the human eye perceives as ‘white’ light may actually be composed of peak wavelengths of light other than 520nm ...
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... LX1970 can provide closed loop brightness control for this type of system. For most indoor applications, the 1200 lux saturation point of the LX1970 is usually not a limiting affect. The LX1971 is best suited for applications where the system must respond to external events that affect the user’ ...
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... DC voltage. 3. Figure 4 shows how a fully manual override can be quickly added to the example in figure 3. In addition to the gate to controller. turn on and off the LX1970, a diode has been inserted to isolate the LX1970 when it is shut down. Diable control 3.3V The 0.25V PW M × ...
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... Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET 0 nds ) Load = 10kΩ and 1µF 2 Photo Step = Direct Light Input of 14.6µW/cm VDD=5 ...
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... 1.200 1.000 0.800 0.600 0.400 0.200 0.000 0 200 300 Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET 1 0.2 0.3 0.4 0.5 0.6 0.7 Source Compliance Voltage (VDD-SRC 3.0V DD 0.2 ...
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... P1 represents a possible light footprint and its dimensions are not subject to strict tolerances. Only the active area of the device is required to be covered with light. This larger footprint is designed to ensure coverage of the device’s active area. Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA ...
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... Copyright © 2007 Rev. 1.5b, 2008-01-25 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Microsemi Analog Mixed Signal Group LX1970 Visible Light Sensor RODUCTION ATA HEET ...