Comfort and Convenience Sensors
Automotive Sensor Products
Single/Dual Zone Solar and Ambient Light Sensors
Features
Solar irradiation intensity measurement
Available as Single or Dual Zone variant
Linear output proportional to irradiance level
Capable of integrating additional functions such as
temperature sensing or alarm LED indicator
Operates with wide range of windscreen types
Customer tailored spectral characteristics
Choice of connectors and terminals
Benefits
Patented diffuser technology provides horizon to
horizon response and regular characteristics
Individual calibration using laser trimming technology
Customized styling and mechanical interface
Customized output and electrical interface
Figure 1: Solar Sensors
General Description
Solar sensors detect the amount of solar irradiation acting
on the vehicle and allow the climate control system to
compute and compensate thermal loads inside of the
passenger compartment for occupant comfort.
Applications
Automotive HVAC Control
Interior and Exterior Lighting Control
Visual Indicator
Ambient light sensors measure ambient light conditions as
seen by the human eye and allow the vehicle body lighting
system to automatically control the Interior or Exterior
lighting features such as Daylight Running Lights or
automatic dimming of instrument panel lighting.
Operation
Basic Principle
Solar radiation acts on the vehicle by generating thermal heat inside of the passenger compartment. Solar sensors measure the
solar irradiation intensity by providing a signal to the vehicle climate control system to compensate solar thermal load inside
of the cabin for passenger comfort.
Packaging Options
Custom packaging can be provided to meet any need, please contact Littelfuse Engineering for details.
© 2018 Littelfuse, Inc.
Littelfuse.com
1