EPC110 Datasheet, PDF (3/27 Pages) Espros Photonics corp – Fully integrated configurable light barrier driver & receiver

epc110
SPI Interface Data (for more details refer to “SPI Interface“)
Symbol Parameter
Conditions/Comments
fSCK SCK Clock frequency
tH
High period of SCK
tL
Low period of SCK
trfSCK Serial clock rise / fall time of SCK
t1
Edge time CS --> SCK
tSU Set-up time of SI
thold Hold time of SI
tD
Output data of SO valid after SCK
trf
Output data rise / fall time of SO
Min.
50
50
50
15
15
Values
Typ.
Max.
10
20
20
20
Units
MHz
ns
ns
ns
ns
ns
ns
ns
ns
Other Data (refer to “Functional Description“)
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
Para-
meter
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
SENSN
SENSH
TPULSE
for fork light barrier, standalone mode
TPER
for fork light barrier, controlled mode
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 weighted valid (non-missing)
pulses to trigger the output.
Refer to Functional Description
Number of weighted missing pulses to
release the output.
Refer to Functional Description
refer to
tCycle / nV
refer to
tCycle / nM
INC
DEC
Values
Min. Typ. Max.
Programmable between
24...108
Programmable between
60...144
100
15
20
0.0
2
50
Programmable between
1…8
Programmable between
5…100'000
controlled by EN input
50
Programmable between
10µs...3.3s
Programmable between
10µs...54.6min
(Programmable between
1…32 pulses)
(Programmable between
1…32'767 pulses)
Units
nA
nA
µA
nA RMS
nA RMS
mA
pF
µs
µs
µs
© 2011 ESPROS Photonics Corporation
3
Characteristics subject to change without notice
Datasheet epc110 - V2.1
www.espros.ch