EPC111 Datasheet, PDF (3/14 Pages) Espros Photonics corp – Fully integrated standalone light barrier driver & receiver

epc111/112
Other Data
Symbol Parameter
IPDN Photo Current Sensitivity OUTN
IPDH Photo Current Sensitivity OUTH
Ipulse Maximum Input Pulse Current
IN_Imin
IN_Imax
IPDDC
Input related noise
Input related noise
DC Photo Diode Current
CPD Photodiode Capacitance
tPulse LED Pulse Length
tCycle LED Cycle Time
trelax Recovery time
tR
Response Time
tF
Release Time (fall time)
nV Valid pulse counts
nM Missing pulse counts
Conditions/Comments
Types
Pulse height to trigger internal threshold
OUTN. Refer to Functional Description
Pulse height to trigger internal threshold
OUTH. Refer to Functional Description
If the input current pulse is above this level,
the recovery time tREC becomes trelax . (refer to
parameter trelax)
@ IPDDC =0
@ I =I PDDC PDDCMax
generated by ambient light with no effect to
the sensitivity
Refer to section Application Information,
Photodiode Capacitance
after a strong current pulse (Ipulse = 100µA)
Minimum time from light beam detection to
status change of the output OUTN or OUTH.
tR_MAX = ( nV + 1 ) * tCycle
Minimum time from beam interruption to
status change of the output OUTN or OUTH.
tF_MAX = ( nM + 1 ) * tCycle
Number of valid (non-missing) pulses to
trigger the output. Refer to Functional
Description
Number of missing pulses to release the
output. Refer to Functional Description
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
epc111
epc112
Min.
0.0
Values
Typ.
60
108
96
144
2
1
100
10
800
30
800
20
8
3
8
2
Max.
Units
nA
nA
100
µA
100
15
nA RMS
20
nA RMS
2
mA
50
pF
µs
µs
50
µs
50
900
µs
40
900
µs
30
Other Parameters
(typical values, Tamb = 25°C, VDD = 3.3V)
120
110
100
90
80
70
60
50
40
0
1
2
3
4
5
6
Pulse width [us]
Figure 2: Input Sensitivity vs. LED pulse width
© 2011 ESPROS Photonics Corporation
3
Characteristics subject to change without notice
Datasheet epc111_112 - V2.2
www.espros.ch