EPC111 EPC [Espros Photonics corp], EPC111 Datasheet
EPC111
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EPC111 Summary of contents
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... Fully integrated standalone light barrier driver & receiver General Description The epc111/112 is a general purpose, fully integrated self-contained CMOS circuit family to be used in light-barrier applications. The chip contains a controller which drives an LED, typically an IR- LED. The LED is used in a pulsed mode to increase the signal-to- noise ratio even when there is very strong sunlight biasing the photo diode ...
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... Pin LED of internal oscillator - for information only of the oscillator - for information only 2 epc111/112 Min. 3.0 3.0 ) -40° Values Min. Typ. 3.0 3.3 2.4 PD NST 60nA 108nA 0.5V N 0.7 1 640 Datasheet epc111_112 - V2.2 Max. Units 3.6 V 3.6 V +85° C +95 % Units Max. 3 250 mV 600 0 ...
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... Datasheet epc111_112 - V2.2 www.espros.ch Units nA nA µA nA RMS nA RMS mA pF µs µs µs µs µs ...
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... This document is confidential and protected by law and international trades. It must not be shown to any third party nor be copied in any form without our written LED Top View 16-Pin QFN Package LST LST PIN Connections QFN16-VEED- 1VN4 Datasheet epc111_112 - V2.2 epc111/112 NC_GND GND PD NC_GND 15.12.2010 Page 1 www.espros.ch ...
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... Pulse Modulated Operation (e.g. OUTN The epc111/112 chip operates the LED and the receiver path on a pulse modulated concept. Thus, the LED is operated with short pulses whereas the receiver channel does synchronous demodulation of the received light pulses by reading the current pulses of the photodiode. ...
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... Light Pulse Detection Output OUTN The epc111/112 contains two digital outputs to indicate that a valid signal of light pulses are received by the photodiode. The first output OUTN is triggered, when the lower threshold is reached by the input signal (see Figure 3). This output is used usually to drive the output of the light barrier. This is a fully CMOS compatible digital output. © ...
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... ESPROS Photonics Corporation Characteristics subject to change without notice Figure 5: synchronization OUTH with OUTN OUTH high max. Voltage OUTH [V] Figure 6: Output voltage versus output current of output OUTH 7 OUTH low max.: 3. 40ºC OUTH low typ. OUTH low min.: 3. 85ºC Datasheet epc111_112 - V2.2 epc111/112 . www.espros.ch ...
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... OUTH 12k T1 BC846 B R3 4k7 +3.3V R4 22k VDD R2 12k epc11x R1 3k6 VDD33 T1 BC846 B VDD18 LED PD OUTN OUTH GND . R3 4k7 GND Figure 9: Inverting, low power level shifter (additional current ca.0.8 ... 1.0mA) <name> <xx> Datasheet epc111_112 - V2.2 epc111/112 R5 33k OUTH T2 <name> 02.12. BC846 B Page 1 <xx> <name> <xx> . 02.12.2011 Page 1 www.espros.ch ...
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... The epc111 device is designed to operate at 3.3V power supply (VDD and VDD33). LED Driver: The output LED of the epc111 to drive the LED driver circuit is a current source capable to drive typically 1mA. For a high performance long range light barrier (>8m), an LED peak current 1.5A is needed. To generate such a high LED current, an external driver circuit is necessary ...
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... A recommended part is shown in Figure 12. The pins at the bottom are to solder the shield to the PCB with electrical connection to GND. The hole in the front is the opening window for the photo diode. The backside of the PCB below the sensitive area (PD, epc111 or epc112) shall be a polygon connected to GND to shield the circuit from the backside as well. ...
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... This document is confidential and protected by law and international trades. It must not be shown to any third party nor be copied in any form wi LED Top View Figure 15: QFN-16: Layout recommendation 11 epc111/112 ∅ 0.3 0.1524 0.5 0.5 2.5 no solder mask inside this area Figure 14: CSP10: Layout recommendation Opening in solder mask Conductor layout NC_GND GND PD NC_GND Shielding of PD pin Datasheet epc111_112 - V2.2 www.espros.ch ...
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... Pb-free assembly for both types of packages. The peak soldering t emperature (T LST © 2011 ESPROS Photonics Corporation Characteristics subject to change without notice Figure 16: QFN-16: Mechanical dimensions ) should not exceed +260°C for a maximum of 4 sec epc111/112 Bottom View 0.3 0.25 LST 15.08.2010 Page 1 Datasheet epc111_112 - V2.2 www.espros.ch ...
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... Characteristics subject to change without notice QFN16 Tape Pin 1 2 QFN16 Tape Pin 1 4 Sensitivity Package RoHS compliance High CSP10 High QFN16 Medium CSP10 Medium QFN16 13 Pin 1 epc111/112 8 Pin 1 8 Packaging Method Yes Reel Yes Reel Yes Reel Yes Reel Datasheet epc111_112 - V2.2 www.espros.ch ...
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... ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, epc will not be responsible for any failure to meet such requirements. © 2011 ESPROS Photonics Corporation Characteristics subject to change without notice 14 epc111/112 Datasheet epc111_112 - V2.2 www.espros.ch ...