DESCRIPTION
Output is a square wave (50% duty cycle) with frequency directly proportional to light intensity (irradiance) on the photodiode. The TSL237 is characterized for operation over the temperature range of −40°C to 85°C and is supplied in a 3-lead clear plastic side-looker package with an integral lens. When supplied in the lead (Pb) free package, the device is RoHS compliant. For automotive and other extended temperature applications, please contact TAOS for information. Functional Block Diagram Light Photodiode Current-to-Frequency Converter Output Available Options DEVICE TSL237 TSL237 TSL237 TA −40°C to 70°C −40°C to 70°C −40°C to 70°C PACKAGE − LEADS 3-lead Sidelooker 3-lead Sidelooker — Lead (Pb) Free 3-lead Surface-Mount Sidelooker — Lead (Pb) Free PACKAGE DESIGNATOR ORDERING NUMBER S TSL237S S TSL237S−LF SM TSL237SM−LF The LUMENOLOGY r Company r Texas Advanced Optoelectronic Solutions Inc. 1001 Klein Road S Suite 300 S Plano, TX 75074 S (972r) 673-0759 Copyright E 2008, TAOS Inc.