Document
IS487/IS488
IS487/IS488
s Features
1. Compact type 2. Built-in schmidt trigger circuit 3. LSTTL and TTL compatible output 4. Open collector output 5. Low level output under incident light (IS487 ) High level output under incident light ( IS488 ) 6. A wide range of operating supply voltage ( VCC : 4.5 to 17v )
Built-in Amp.Type OPIC Light Detector
s Outline Dimensions
Internal connection diagram IS487 Voltage regulator 3 2 1 Amp. 2.95 Gate burr 4˚ R0.5 4˚ 1.6
60
( Unit : mm )
IS488 Voltage regulator 3 2 1 Amp.
1.15 3.0 1.5 2- C0.5 0.8MAX. 0.75 4˚ 4.0 ± 0.2
Rugged resin
0.3MAX. 2 - 0.8 1.4
s Applications
1. Floppy disk drive Units 2. Copiers, printers, facsimiles 3. VCRs 4. Automatic vending machines
4˚ ˚
16.5 ± 1.0
1.27 6˚ 1 6˚ 1.6 1.27 6˚ 6˚ 3
18.0
+ 1.5 - 1.0
3-
+ 0.3 0.4 - 0.1
0.3 3 - 0.45 + - 0.1
(1.27)
6˚ 2.8
6˚ 2
1 GND 2 VO 3 V CC
*“ 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 current Power dissipation Operating temperature Storage temperature *1 Soldering temperature Symbol V CC VO IO P Topr Tstg Tsol Rating - 0.5 to + 35 - 0.5 to + 40 50 175 - 25 to +85 - 40 to +100 260
( Ta= 25˚C )
Unit V V mA mW ˚C ˚C ˚C
*1 For 5 seconds at the position of 1.4mm from the bottom face of resin package
“ 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. ”
2.6
0.15
IS487/IS488 s Electro-optical Characteristics
Parameter Low level output voltage High level output current Low level supply current High level supply current
*4
( Unless otherwise specified, Ta= 0 to 70˚C, VCC= 5V )
Symbol V OL I OH I CCL I CCH Conditions I OL = 16mA *3 V CC = 20V, V O= 30V *2 *3 T a = 25˚C, R L = 280Ω R L = 280Ω T a = 25˚C, R L = 280Ω R L = 280Ω T a = 25˚C, R L = 280Ω R L = 280Ω T a = 25˚C, R L = 280Ω R L = 280Ω
*2
“ High→Low” Threshold illuminance
IS487 E VHL IS488 IS487 E VLH IS488 IS487 IS488 IS487 IS488 IS487 IS488 E VLH /E VHL E VHL /E VLH t PLH t PHL tr tf
*5
“ Low→High” Threshold illuminance
MIN. 1.5 1 1.5 1 0.50 -
TYP. 0.15 1.3 0.7 15 10 10 15 0.65 5 3 3 5 0.1 0.05
MAX. 0.4 100 3.4 2.2 35 50 35 50 0.90 15 9 9 15 0.5 0.5
Unit V µA mA mA
lx
lx
*6
Hysteresis “ Low→High” Propagation time
T a = 25˚C, R L = 280Ω
-
Response time
“ High→Low” Propagation time Rise time Fall time
T a = 25˚C E V = 50lx R L = 280 Ω
µs
*2 Defines EV = 50lx ( IS487 ) and E V = 0 ( IS488 ) . *3 Defines EV = 0 (IS487) and E V = 50lx ( IS488 ) . *4 EVHL represents illuminance by CIE standerd light source A ( tungsten lamp ) when output changes from high to low. *5 E VLH represents illuminance by CIE standerd light source A ( tungsten lamp ) when output changes from low to high. *6 Hysteresis stands for EVLH /E VHL ( IS487 ) and E VHL /E VLH ( IS488 ) .
s Recommended Operating Conditions
Parameter Supply voltage Output current Symbol V CC I OL MIN. 4.5 MAX. 17 16 Unit V mA
In order to stabilize power supply line, connect a by-pass capacitor of 0.01 µ F or more between VCC and GND near the device.
IS487/IS488
Fig. 1 Low Level Output Current vs. Ambient Temperature
60 Low level output current I OL ( mA )
Fig. 2 Power Dissipation vs. Ambient Temperature
300
50 Power dissipation P ( mW )
250
40
200 175 150
30
20
100
10 0 - 25
50 0 - 25
0
25
50
75 85
100
0
25
50
75 85
100
Ambient temperature Ta ( ˚C )
Ambient temperature Ta ( ˚C )
Fig. 3 Relative Threshold Illuminance vs. Supply Voltage
1.1 T a = 25˚C 1 E VHL ( IS487 ) 2 E VLH ( IS487 ) E VLH ( IS488 ) E VHL ( IS488 ) 1 0.9
Fig. 4 Low Level Output Voltage vs. Ambient Temperature
0.6 E V = 50 lx ( IS487 ) ( IS488 ) EV = 0 Low level output voltage V OL ( V ) 0.5 V CC = 5V
1.0 Relative threshold illuminance
0.4
0.8
0.3
I OL = 30mA
0.7 2 0.6 0.5 0 5 E VHL ( IS487 ) , E VLH ( IS488 ) =1 at V CC = 0 10 Supply voltage V 15
CC
0.2 0.1
16mA
5mA 25 0 - 25 0 25 50 75 100
20 (V)
Ambiment temperature Ta ( ˚C )
Fig. 5 Supply Current vs. Ambient Temperature
3.0
2.5 Supply current I cc ( mA ) V CC = 17V 10V 1.5 5V ICCL
2.0
1.0 0.5 V CC = 17V 10V I CCH 5V 0 - 25
0
25
50
75
100
Ambient temperature Ta ( ˚C )
IS487/IS488
Fig. 6 Propagation Delay Time vs. Illuminance
12 ( µ s) 11 10 9 8 7 6 5 4 3 2 1 0 0 1 t PLH ( IS487 ) 2 t PHL ( IS487 ) t PHL ( IS488 ) t PLH ( IS488 ) 100 200 300
v(
Fig. 7 Rise Time, Fall Time vs. Load Resistance
0.8 1 Rise time, fall time t r , t f ( µ s ) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 tf 0.1 0.2 0.5 1 2 5 10 20 50 tr T a = 25˚C V CC = 5V E V = 50lx
Propagation delay time t PLH , t
PHL
V CC = 5V RL = 280Ω T a = 25˚C
2
400 lx )
500
600
0
Illuminance E
Load resi.