412101

www.DataSheet4U.com 412101 Visible Light Detector DESCRIPTION The 412101 is a low cost visible light sensor, with a current output which is directly proportional to the light level. It has a built in optical filter to provide a response which is close to the human eye, or “photopic”. The output current can be converted to a voltage by connecting it in series with a resistor. The dynamic range is determined by the external resistor and power supply (10K and 5V gives a range of 0 to over 250 Lux, but can be up to 1000 Lux with a 1K resistor). The internal dark current cancellation enables high accuracy over the full temperature range, even at low light levels. FEATURES Near human eye photopic response High IR rejection – integrated optical filter Current output highly linear vs light level Temperature stable Integrated high gain photo-current amplifier Dark-current cancellation APPLICATIONS Dawn/dusk sensing Security lighting Display backlighting in laptops, mobile phones, LCD TVs Night-lights 1.0 Basic application & test circuit Figure 1 Vdd 412101 The 412101 is supplied as probed wafers. Failing die are marked with a black ink-dot. Vss Rss Pin Description Vdd – Positive terminal Vss – Negative terminal Preliminary Datasheet REVISION A Page 1 of 11 This document is the property of Semefab (Scotland) Ltd and is furnished in confidence and upon the condition that it is neither copied nor released to a third party without prior consent. 412101 Visibl...