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IS471F
IS471F
s Features
1. Impervious to external disturbing lights due to light modulation system 2. Built-in pulse driver circuit and sync. detector circuit on the emitter side 3. A wide range of operating supply voltage ( VCC: 4.5 to 16V )
OPIC Light Detector with Built-in Signal Processing Circuit for Light Modulation System
s Outline Dimensions
Internal connection diagram Voltage regulator Comparator 1 Sync. detector 2 circuit Demodulator circuit 4 3 0.8 2- C0.5 4 Lustered face 4 0.45 0.95 1.27 0.4 +0.2 - 0.1 P 1 2 3 4 V CC VO GND GL out 17.6 1.0 15.5 1.0 2.5 0.2 1.8 0.2 Visible light 4 cut-off black epoxy resin 4 2.5
( Unit : mm )
Amp. Oscillator Detector center 1.0MAX. 2.5 0.2
4.4 0.2 1234 6 23 6 4 6 2.5 6 2.0
1. Optoelectronic switches 2. Copiers, printers 3. Facsimiles
0.6MAX. 4- 0.45
P P P P = 1.27mm
1
*"OPIC " ( Optical IC ) is a trademark of the SHARP Corporation. An OPIC consists of a light-detecting element and signalprocessing circuit integrated onto a single chip.
s Absolute Maximum Ratings
Parameter Supply voltage Output voltage Output Output current *1 GL output Output voltage Power dissipation Operating temperature Storage temperature *2 Soldering temperature Symbol V CC VO IO VGL P Topr Tstg Tsol
( Ta= 25C)
Rating - 0.5 to 16 16 50 16 250 - 25 to + 60 - 40 to +100 260 Unit V V mA V mW C C C
*1 Applies to GL out terminal *2 For 5 seconds at the position shown in the right figure
" In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that occur in equipment using any of SHARP's devices, shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. "
0.3MAX.
s Applications
1.8 1.7 0.3
Resin portion
Soldering portion (Immersed up to bending portion )
IS471F s Electro-optical Characteristics
Parameter Operating supply voltage Supply current Low level output voltage Output High level output voltage Output short circuit current Low level output current GL *4 Pulse cycle output *4 Pulse width *5 " LowHigh " threshold irradiance *5 " HighLow " threshold irradiance Hysteresis " HighLow" Response propagation delay time " LowHigh" time propagation dealy time *7 External disturbing light illuminance Symbol V CC ICC V OL V OH IOS IGL tp tW E ePLH E ePHL E ePLH /E ePHL t PHL t PLH E VDX Conditions VO, GL out terminals shall be opened. IOL= 16mA, E VP = 500lx, E VD= 0*3 EVD= EVP = 0*3 EVP = EVD= 0*3 VGL= 1.2V E eD = 0*3 Light emitting diode ( p= 940nm ) *6
( VCC= 5V, Ta= 25C )
MIN. 4.5 4.97 0.25 40 70 4.4 0.45 2000 TYP. 3.5 0.15 0.5 55 130 8 0.4 0.7 0.65 400 400 7500 MAX. 16 7.0 0.35 1.0 70 220 13.7 2.66 2.8 0.95 670 670 Unit V mA V V mA mA s s W/mm 2 W/mm 2 s s lx
*6 *6 Eep= 7.5 W/mm 2, *3 p= 940nm
*3 E eP represents illuminance of signal light in sync with the low level timing of output at GLout terminal. E eD represents illuminance of DC light. For detail, see Fig. 1. Light source: Infrared light emitting diode ( p= 940nm ) E VP represents illuminance of signal light in sync with the low level timing of output at GLout terminal. E VD represents illuminance of DC light. Note that the light source is CIE standard light source A.
Fig.1
EeP Ee EeD Time ( Note ) Fig. 1 shows the output waveform at GL out terminal with IS471F connected as shown in Fig. 3.
0
Output waveform at GL out terminal
*4 Pulse cycle (t P) , pulse width (t W) are defined as shown in Fig. 2. The waveform shown in Fig. 2 is the output voltage waveform at GLout terminal with IS471F connected as shown in Fig. 3
Fig.2
Fig.3
5V
0V tW tP
VCC 1 VO 2 GLout IS471F 4 GND 3
280 0.33 F 5V
*5 Defined as Eep that causes the output to go" Low to High" ( or" High to Low" ) .
IS471F
*6 Test circuit for response time, threshold irradiance is shown in Fig. 4.
Fig. 4
Vin VCC Light emitting diode IS471F Switch 4 GLout Light emitting diode : peak emission wavelengh P = 940nm 3 0.33 F GND Output 1.5V VOL 1 2 VO 280 Switch ON 5V t PHL t PLH VOH OFF
*7 E
VDX : Defined
as the E VD at the limit of normal operation range.
Fig. 5 Power Dissipation vs. Ambient Temperature
300
Fig. 6 Low Level Output Voltage vs. Low Level Output Current
1 0.5 V CC = 5V T a = 25C
200
Low level output voltage V OL ( V )
250 Power dissipation P ( mW )
0.2 0.1 0.05
150
100
50 0 - 25
0.02 0.01
0
25
50 60
75
100
125
1
2
5
10
20
OL
50 ( mA )
100
Ambient temperature Ta ( C )
Low level output current I
Fig. 7 Low Level Output Voltage vs. Ambient Temperature
0.6 V CC = 5V Low level output voltage V OL ( V ) 0.5
Fig. 8 Supply Current vs. Supply Voltage
8
7 Supply current I cc ( mA )
T a =6
25C
0.4
25C
5
0.3 I OL = 30mA 0.2 16mA 0.1 5mA 0 - 25
60C
4
3 2 0 25 50 75 100 0 2 4 6 8 10 12 14 16 Ambient temperature Ta ( C ) Supply voltage Vcc ( V )
IS471F
Fig. 9 Low Level Output Current vs. Supply Voltage
80 Low level output current I OL ( mA ) 70 60 50 60C 40 30 20 10 0 2 4 6 8 10 12 14 (V) 16 18 - 50 - 60 - 70 - 80 - 90 0 Angular displacement 20 T a =-25C 25C - 40 - 30
Fig.10 Sensitivity Diagram ( Ta = 25C )
-20 -10 0 100 (%) +30 80 +10 +20
Relative sensitivity
60
+40
40
+50 +60 +70 +80 +90
Supply voltage V cc
Fig.11 Spectral Sensitivity
100 T a = 25C 90 80 Relative sensitivity ( % ) 70 60 50 40 30 20 10 0 400 500 600 700 800 900 1000 1100 1200 1300 1400 Wavelength ( nm )
s Basic Circuit
Voltage regulator Comparator Sync.detector circuit Demodulator circuit Amp. Oscillator V cc ( Power supply) Vo ( Signal output) g C = 0.33 F
Infrared light emitting diode
g In order to stabilize power supply line, connect a by-pass capacitor of 0.33 F or more between Vcc and GNP near the device.
q Please refer to the chapter "Precautions for Use."

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