EPC110 Datasheet, PDF (22/27 Pages) Espros Photonics corp – Fully integrated configurable light barrier driver & receiver

epc110
High speed detection rate design (refer also to datasheet epc112)
Figure 20 shows the epc 110 as an example in a high speed detection rate light barrier application with minimal part count. This design is
optimized for a fast reading of light beam interruptions. Where as the working principle is similar to the above example. This driver circuit
operates with a VDDLED in a range of 6 to 20 VDC.
C2 1μF
C3 100nF
+3.3V
C4 100nF
C5 4.7nF
PD
epc300
VDD
epc110
VDD33
VDD18
LED
PD
OUTN
OUTH
GND
VDD = +12V
LED
R3
R7
10k
10k
R5
12k
IR LED
R4
TSML1000
3k6
T2
BC846B
T1
BC846B
R6
R2
4k7
13R
R1
47R
C1
10μF
Low ESR
GND
OUTN
OUTH
Marked conductors must be short and low ohmic
C2 The epc112 device with its very sensitive input PD needs a well decoupled power supply
Figure 20: High speed detection rate light barrier application with minimal part count
Notice:
The schematic is for illustrating the basic circuit idea only. For the real built up the designer has to take all other additional influence factors in
consideration too e.g. design rules, power rating, heat dissipation, ...
The following table shows the parameter allocation in the memory:
ROM RAM 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0 16 1
1
0
1
1
0
0
0
0
0
0
0
0
0
1 FUSEBIT
1 17 0
0
1
1
1
1
0
0
0
1
1
1
0
0
<⁰nam^Fe^U>^{SEBIT Application}
<T2itle1>8 0
3 19
0
0
0
1
0
1
0
1
don't use
1
1
1
1
1
<¹xx>^{FFUUSSEEBBIITT parameters}
File:
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confident₅ial
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and
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trades.
It
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don't
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permission.
FUSEBIT
FUSEBIT Trimming
6 22
don't use
FUSEBIT
7 23
don't use
FUSEBIT Device Address
8 24
Lot no. LSB
FUSEBIT
9 25
Lot no. MSB
FUSEBIT
10 26
Chip ID
FUSEBIT
11 27
12 28
Factory use only
Revision no.
FUSEBIT
FUSEBIT
Chip ID
13 29
no function
FUSEBIT
14 30
no function
FUSEBIT
15 31
no function
FUSEBIT
Figure 21: Detailed memory map epc110 “High speed”
Parameter settings can be done by writing complete 16 bit registers only.
25.01.201
Page 1
© 2011 ESPROS Photonics Corporation
22
Characteristics subject to change without notice
Datasheet epc110 - V2.1
www.espros.ch