Reflective Optical Sensor SFH 7740
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Catalog excerpts

Reflective Optical Sensor SFH 7740 - 1

Absorber target Reflector Absorber target Reflector Absorber target Reflector >

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Reflective Optical Sensor SFH 7740 - 2

SFH 7740 ASIC Figure 3: SFH 7740 application schematic diagram, also showing a block diagram of the internals of the part. pull-up resistor bypass capacitor C bypass capacitor C > 1 2 size="-2">

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Reflective Optical Sensor SFH 7740 - 3

prog Reflector (min. 50mm * 50mm) Reflector (min. 50mm * 50mm) 10mm 10mm >

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Reflective Optical Sensor SFH 7740 - 5

Absorber target Reflector Absorber target Reflector Absorber target Reflector Absorber target Reflector Absorber target Reflector Absorber target Reflector >

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Reflective Optical Sensor SFH 7740 - 6

6.3 Internal timing of the SFH7740 The timing diagram > 6.2 Use of regulated power supplies 6.1 Tolerances ATTENTION: The narrow sensitivity distribution of the SFH7740 can lead to a false sense of security when attempting to use a lower reflection ratio than 10. In this case, it is possible that the device will fail under certain circumstances (e.g. varying temperature, device aging) as all design variabilities would no longer implicitly be taken into account. Figure 8: Timing diagram >

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Reflective Optical Sensor SFH 7740 - 7

analog signal Absorber target Reflector Absorber target Reflector Absorber target Reflector >

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Reflective Optical Sensor SFH 7740 - 8

Figure 10: Package drawing of the SFH 7740. > Osram Opto Semiconductors GmbH, Regensburg, is a wholly owned subsidiary of Osram GmbH, one of the worlds three largest lamp manufacturers, and offers its customers a range of solutions based on semiconductor technology for lighting, sensor and visualisation applications. The company operates facilities in Regensburg (Germany), San Josҩ (USA) and Penang (Malaysia). Further information is available at www.osram-os.com. All information contained in this document has been checked with the greatest care. OSRAM Opto Semiconductors GmbH can however,...

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