Optoschmitt Detector
Open-Collector Output
SDP8304/8314
DESCRIPTION
FEATURES
Side-looking plastic package
•
55¡ (nominal) acceptance angle
•
TTL/LSTTL/CMOS compatible
•
Open collector output
•
Buffer (SDP8304) or inverting (SDP8314) logic
available
•
High noise immunity output
•
Mechanically and spectrally matched to
SEP8506 and SEP8706 infrared emitting diodes
•
The SDP8304/8314 series consists of a high speed IC
molded in a side-looking black plastic package to
minimize the effect of visible ambient light. The detector
incorporates a Schmitt trigger which provides pulse
shaping and hysteresis for noise immunity. Output rise
and fall times are independent of rate of change of
incident light. Detector sensitivity has been internally
temperature compensated. The output stage is an open
collector NPN transistor. This configuration allows the
sensor to interface with circuit elements driven by
supply voltages other than the VÙÙ supply. For
additional output configuration options refer to
SDP8004/8014 and SDP8604/8614.
Device Polarity:
Buffer - Output is HI when incident light intensity is
above the turn-on threshold level.
Inverter - Output is LO when incident light intensity is
above the turn-on threshold level.
(0.76)
.030
(1.52)
.060
SQ.3PLCS
(0.51)
.020
~
~
(1.14)
(1.52)
.045
.060
(5.72)
(4.45)
.225
.175
VccVo
MIN
(12.71)
.500
(3.81)
0.150
~
~
~
~
~
~
GND
(1.91)
.075
.025(.64)
.045(1.14)
DIM_026.ds4
OUTLINE DIMENSIONS
in inches (mm)
3 plc decimals
±0.005(0.12)
Tolerance
2 plc decimals
±0.020(0.51)
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
188
Optoschmitt Detector
Open-Collector Output
SDP8304/8314
ELECTRICAL CHARACTERISTICS
UNITS
TEST CONDITIONS
MIN
PARAMETER
SYMBOL
TYP
MAX
ABSOLUTE MAXIMUM RATINGS
(25¡C Free-Air Temperature unless otherwise noted)
Supply Voltage
12 V [À]
Duration of Output
Short to VÙÙ or Ground
1.0 sec
Applied Output Voltage
35 V
Low Level Output Current
16 mA
Irradiance
25 mW/cmÁ
Operating Temperature Range
-40¡C to 85¡C
Storage Temperature Range
-40¡C to 85¡C
Soldering Temperature (5 sec)
240¡C
Notes
1. Derate linearly from 25¡C to 5.5 V at 85¡C.
SCHEMATIC
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
189
Optoschmitt Detector
Open-Collector Output
SDP8304/8314
SCHEMATIC
SCH_019.cdr
SWITCHING TIME TEST CIRCUIT
cir_007.cdr
SWITCHING WAVEFORM FOR BUFFERS
cir_013.cdr
SWITCHING WAVEFORM FOR
INVERTERS
cir_011.cdr
Responsivity vs
Angular Displacement
gra_065.ds4
Angular displacement - degrees
Relative response
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
-60 -45 -30 -15 0 +15 +30 +45 +60
Fig. 1 Threshold Irradiance vs Temperature
gra_060.ds4
Temperature - °C
Relative irradiance
0.0
0.2
0.3
0.4
0.5
2.0
1.0
-40 -20 0 20 40 60 80 100
Fig. 2
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
190
Optoschmitt Detector
Open-Collector Output
SDP8304/8314
Output Rise Time (t²) and Output Fall
Time (t¶) vs Temperature
gra_061.ds4
Temperature - °C
Rise time (T
R
) & fall time (T
F
)
- ns
20
40
60
100
120
140
160
180
220
240
-40 -20 0 20 40 60 80 100
80
200 Symbol definition & test
circuit per figures
Fall time TF
Rise time TR
Fig. 3 Delay Time vs Temperature
gra_062.ds4
Ambient temperature - °C
Propagation delay - µs
0.0
1.4
1.8
2.2
2.6
3.0
3.4
3.8
4.2
-40 -20 0 20 40 60 80 100
TPLH
TPHL
Fig. 4
Spectral Responsivity
gra_050.ds4
Wavelength - nm
Relative response
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
600 700 800 900 1000 1100 1200
Fig. 5
All Performance Curves Show Typical Values
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
h
191