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TSL237S-LF Fiches technique(PDF) 1 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
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TSL237S-LF Fiches technique(HTML) 1 Page - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS |
1 / 10 page TSL237 HIGH-SENSITIVITY LIGHT-TO-FREQUENCY CONVERTER TAOS052G − SEPTEMBER 2007 1 The LUMENOLOGY r Company r r Copyright E 2007, TAOS Inc. www.taosinc.com D High-Resolution Conversion of Light Intensity to Frequency With No External Components D High Irradiance Responsivity . . . 2.3 kHz/(mW/cm2) at λp = 524 nm D Low Dark Frequency ...< 2 Hz at 505 C D Single-Supply Operation . . . 2.7 V to 5.5 V D Stable 200 ppm/°C Temperature Coefficient D Interfaces Directly to a Microcontroller D RoHS Compliant (−LF Package Only) Description The TSL237 light-to-frequency converter combines a silicon photodiode and a current-to-frequency converter on a single monolithic CMOS integrated circuit. Output is a square wave (50% duty cycle) with frequency directly proportional to light intensity (irradiance) on the photodiode. The digital output allows direct interface to a microcontroller or other logic circuitry. The device has been temperature compensated for the ultraviolet-to-visible light range of 320 nm to 700 nm and responds over the light range of 320 nm to 1050 nm. The TSL237 is characterized for operation over the temperature range of −25°C to 70°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 Current-to-Frequency Converter Photodiode Output Available Options DEVICE TA PACKAGE − LEADS PACKAGE DESIGNATOR ORDERING NUMBER TSL237 −25°C to 70°C 3-lead Sidelooker S TSL237S TSL237 −25°C to 70°C 3-lead Sidelooker — Lead (Pb) Free S TSL237S−LF TSL237 −25°C to 70°C 3-lead Surface-Mount Sidelooker — Lead (Pb) Free SM TSL237SM−LF r r Texas Advanced Optoelectronic Solutions Inc. 1001 Klein Road S Suite 300 S Plano, TX 75074 S (972) 673-0759 PACKAGE S SIDELOOKER (FRONT VIEW) 1 GND 2 VDD 3 OUT PACKAGE SM SURFACE MOUNT SIDELOOKER (FRONT VIEW) 1 GND 2 VDD 3 OUT |
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Description similaire - TSL237S-LF |
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