EPC110 Datasheet, PDF (10/27 Pages) Espros Photonics corp – Fully integrated configurable light barrier driver & receiver

epc110
To have still digital compatible signals a level conversion is necessary. Below you find some examples for such circuits for converting OUTH
levels to full CMOS compatible digital output.
+3.3V
VDD
epc110
VDD33
VDD18
LED
PD
OUTN
OUTH
GND
R4
10k
R2
R1
12k
OUTH
3k6
T1
BC846 B
R3
4k7
GND
Figure 9: Non-inverting, low power level shifter (additional current approx. 0.6mA)
+3.3V
+3.3V
VDD
epc110
VDD33
VDD18
LED
PD
OUTN
OUTH
GND
<Title>
R1
1k5
R2
10k
R3
33k
OUTH
T1
BC846 B
VDD
epc110
VDD33
VDD18
PD
LED
OUTN
OUTH
GND
R2
R1
12k
3k6
R3
4k7
File:
This document is confidential and_Gpr_Not_Dected by law and international trades. It must not be shown to any third party nor be copied in any f^Gor^Nm^Dwithout our written permission .
R4
22k
T1
BC846 B
R5
33k
OUTH
T2
BC846 B
<name>
<xx>
Figure 10: Simple inverting level shifter
(additional current approx. 1.6mA or 2.6mA)
Figure 11: Inverting, low power level shifter
(additional current approx. 0.8 ... 1.0mA)
<Title>
File:
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 permission .
cted by law and international trades. It must not be shown to any third party nor be copied in any form without our written permissio.n
<name>
<xx>
24.01.2011
Page 1
<name>
<xx>
© 2011 ESPROS Photonics Corporation
10
Characteristics subject to change without notice
Datasheet epc110 - V2.1
www.espros.ch