ISTS970T [ETC]
;
| 型号： | ISTS970T |
| 厂家： | 
ETC |
| 描述： |
|
| 文件： | 总3页 (文件大小：55K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISTS970N, ISTS971N
ISTS970T, ISTS971T
ISO - LOGIC BUFFER
SCHMITT TRIGGER
INTERRUPTER SWITCH
Dimensions in mm
ISTS970N
ISTS971N
DESCRIPTION
The ISTS970 and ISTS971 series of
transmissive photointerrupters are single channel
switches consisting of a Gallium Arsenide
infrared emitting diode coupled to a high speed
integrated circuit detector. The output
pin 3 VCC
5
1
2
E
pin 4VO
2
4
1
3
pin 5 GND
6.6
incorporates a Schmitt trigger which provides
hysteresis for noise immunity and pulse shaping.
The gap in the plastic housing provides a means
of interrupting the signal with an opaque
material, switching the output from an 'OFF' into
an 'ON' state.
12.7
3.3
3.0
3.0
2.8
9.0
8.0
11.1
10.5
FEATURES
OPTICAL
CENTRE
LINE
0.45
0.40
l
l
l
Output high under incident light
Built in Schmitt trigger circuit
Pull up resistor between VCC and output
(ISTS970)
7.62
2.54
l
l
l
l
Open collector output (ISTS971)
High sensitivity
3mm gap between LED and detector
1mm aperture over detector
ISTS970T
ISTS971T
APPLICATIONS
Floppy disk drives, Copiers, Printers,
l
25.7
24.1
pin 3 VCC
pin 4VO
Facsimilies, VCR's, Cassette tape
Recorders, Automatic vending machines
1
5
19.05
2
1
E
pin 5 GND
4
2
6.6
12.7
Voltage Regulator
3
3.3
3.0
2.8
3.0
9.0
8.0
11.1
10.5
3 VCC
2
1
ISTS970
10kΩ
only
4 Out
OPTIC AL
CENTRE
LINE
0.45
0.40
7.62
2.54
5 GND
Amp
ISOCOM INC
ISOCOM COMPONENTS LTD
720 E., Park Boulevard, Suite 104,
Plano, TX 75074 USA
Tel: (972) 423-5521
Unit 25B, Park View Road West,
Park View Industrial Estate, Brenda Road
Hartlepool, Cleveland, TS25 1YD
Fax: (972) 422-4549
Tel: (01429) 863609 Fax :(01429) 863581
3/10/97
DB92072-AAS/A2
ABSOLUTE MAXIMUM RATINGS (25°C unless
otherwise specified)
Storage Temperature
Operating Temperature
Lead Soldering Temperature
(5 secs maximum)
-40°C to +85°C
-25°C to +85°C
260°C
INFRARED EMITTING DIODE
Power Dissipation
75 mW
50 mA
1 A
Forward Current ( Continuous )
Forward Current ( Peak )
(Pulse Width ≤100µs, Duty Ratio = 0.01)
Reverse Voltage
6V
PHOTO DETECTOR
Power Dissipation
Output Current
Allowed Range V35 (ISTS970)
(ISTS971)
Allowed Range V45 (ISTS970)
(ISTS971)
250 mW
50mA
0 to 17V
0 to 35V
0 to 17V
0 to 40V
ELECTRICAL CHARACTERISTICS ( TA= 25°C Unless otherwise noted )
PARAMETER
MIN TYP MAX UNITS
TEST CONDITION
Input
Forward Voltage (VF)
Reverse Voltage (VR)
Reverse Current (IR)
1.1
1.7
10
V
V
µA
IF = 20mA
IR = 10µA
VR = 3V
6
Detector Operating Voltage Range VCC
Low Level Supply Current ICCL
4.75
5.25
15
V
2.0
1.0
mA
mA
V
VCC= 5.25V, IF = 0mA
VCC= 5.25V, IF = 15mA
High Level Supply Current ICCH
Low Level Output Voltage VOL
15
0.4
VCC= 4.75V, IF = 0mA
IOL = 12.8mA
High Level Output Voltage VOH
ISTS970
2.4
V
VCC= 4.75V, IF = 15mA
IOH = -800µA
High Level Output Current IOH
ISTS971
100 µA
VCC= 4.75V, IF = 15mA
VOH = 30V
Input Forward Threshold Current IFT
Propagation Delay Time
15
mA
VCC= 5V
to Logic High at Output
Propagation Delay Time
to Logic Low at Output
tPLH
5
µs
µs
µs
VCC= 5V
IF = 15mA
RL= 360Ω (ISTS971)
or
tPHL
tr
5
Rise Time
0.1
RL= 8TTL Loads
(ISTS970)
Fall Time
tf
0.05
µs
Note 1
Special Selections are available on request. Please consult the factory.
3/10/97
DB92072-AAS/A2
Collector Power Dissipation vs. Ambient Temperature
Low Level Output Voltage vs.
Low Level Output Current
1
300
250
VCC = 4.75V
IF = 0mA
TA = 25°C
0.5
200
150
100
0.2
0.1
0.05
50
0
0.02
0.01
1
10
50 100
-25
0
25
50
75
100 125
Low level output current IOL ( mA )
Ambient temperature TA ( °C )
Forward Current vs. Ambient Temperature
Rise Time, Fall Time vs. Load
Resistance
60
50
0.6
0.5
VCC = 4.75V
IF = 15mA
TA = 25°C
0.4
0.3
40
30
20
tr
0.2
0.1
0
10
0
tf
-25
0
25
50
75
100 125
0.1 0.2
0.5
1
2
5
10
Ambient temperature TA ( °C )
Load resistance RL ( kΩ)
Supply Current vs.
Ambient Temperature
Low Level Output Voltage vs.
Ambient Temperature
0.7
0.6
VCC = 5.25V
VCC = 5.25V
IF = 0mA
3.0
2.0
0.5
0.4
ICCL
0.3
0.2
IOL = 30mA
1.0
0
16mA
5mA
ICCH
0.1
0
-25
0
25
50
75
100
-25
0
25
50
75
100
Ambient temperature TA ( °C )
Ambient temperature TA ( °C )
DB92072-AAS/a2
3/10/97
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