EPC110 EPC [Espros Photonics corp], EPC110 Datasheet - Page 14

• Manufacturer Part Number: EPC110
• Description: Fully integrated configurable light barrier driver & receiver
• Manufacturer: EPC [Espros Photonics corp]

DEC
TPER
Parameter
Name
FUSEBIT
SENSN
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
ROM
Register No.
1
1
2
2
RAM
17
17
18
18
12
15...13
15
Bit No.
3
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
12...9
0
0
0
0
1
1
1
1
3...1
0
Values
The corresponding ROM register is not programmed
The corresponding ROM register is programmed
11
14
2
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
10
13
1
0
1
0
1
0
1
0
1
Weight of missing pulse counts. Refer to Pulse Modulated Operation (e.g. OUTNint to OUTN) :
Minimum number of missing pulses n
For fork light barrier, standalone mode: LED cycle time t
For fork light barrier, controlled mode:
Lower threshold setting of the p hoto current sensitivity I
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Function
During write operation to this RAM register, put this bit = 0.
This bit will be set automatically, when corresponding ROM register is programmed.
Values Default Recommended Comments
108nA
24nA
36nA
48nA
60nA
72nA
84nA
96nA
9
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Values Default
100ms
100μs
300μs
10ms
10μs
30μs
1ms
5μs
DEC
10
12
13
14
15
11
X
0
1
2
3
4
5
6
7
8
9
X
Min. n
32768
16384
8192
4096
2048
1024
512
256
128
M
64
32
16
8
4
2
1
X
Recommended Setting
14
X (typical setting)
X (Default setting)
X (typical setting)
A lower value increases the sensitivity. A too sensitive setting leads to
false readings because of shot noise of the receiver photo diode and the
internal amplifier (typ. input noise level is 7nA RMS without photo diode).
Also induced EMI can lead to false readings if the sensitivity is set too
low. The EMI sensitivity is heavily depending on the system architecture
and the electromechanical design. The better the shielding of the chip
and the photo diode and the better the PCB layout, the better the EMI
immunity.
The tolerance of the threshold is approx. ±25%.
Setting
M
of light detection for counting the r elease time (fall time) t
Select next lower value then external EN cycle time.
PDN
Cycle
to trigger output OUTN.
.
Datasheet epc110 - V2.1
www.espros.ch
epc110
F
.