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PC851
PC851
s Features
1. High collector-emitter voltage ( VCEO : 300V) 2. High isolation voltage between input and output ( Viso : 5 000V rms ) 3. Compact dual-in-line package 4. Recognized by UL, file No. E64380
High Collector-emitter Voltage Type Photocoupler
s Outline Dimensions
2.54 0.25 4 PC851 3 6.5 0.5 diagram 4 3
g Lead forming type ( I type ) and taping reel type ( P type ) are also available. ( PC851I/PC851P )
( Unit : mm )
Internal connection
Anode mark
s Applications
1. ON-OFF switching for transmission/reception circuit for telephone 2. Interface to various power supply circuits, power patch boards 3. Copiers, facsimiles 4. Output section for numerical control machines 5. Controller for SSRs, DC motors
1 1.2 0.3 4.58 0.5
2 0.9 0.2
1 1 Anode 2 Cathode
2 3 Emitter 4 Collector
7.62 0.3 0.5TYP. 3.5 0.5 3.0 0.5
0.5 0.1
= 0 to 13
0.26 0.1
s Absolute Maximum Ratings
Parameter Forward current *1 Peak forward current Reverse voltage Power dissipation Collector-emitter voltage Emitter-collector voltage Collector current Collector power dissipation Total power dissipation *2 Isolation voltage Operating temperature Storage temperature *3 Soldering temperature Symbol IF I FM VR P V CEO V ECO IC PC P tot V iso T opr T stg T sol Rating 50 1 6 70 300 6 50 150 200 5 000 - 25 to + 100 - 55 to + 125 260
( Ta = 25C )
Unit mA A V mW V V mA mW mW V rms C C C
Input
Output
*1 Pulse width <=100s, Duty ratio : 0.001 *2 40 to 60% RH, AC for 1 minute *3 For 10 seconds
" 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."
PC851 s Electro-optical Characteristics
Parameter Forward voltage Reverse current Terminal capacitance Collector dark current Current transfer ratio Collector-emitter saturation voltage Isolation resistance Floating capacitance Cut-off frequency Rise time Response time Fall time Symbol VF IR Ct ICEO CTR V CE(sat) R ISO Cf fC tr tf Conditions IF = 20mA VR = 4V V = 0, f = 1kHz VCE = 200V, I F = 0 IF = 5mA, V CE = 5V IF = 20mA, I C = 1mA DC500V, 40 to 60% RH V = 0, f = 1MHz VCE = 5V, I C = 2mA, R L = 100 , - 3dB VCE = 2V, I C = 2mA RL = 100 MIN. 40 5 x 1010 TYP. 1.2 30 80 0.1 1011 0.6 50 4 5
( Ta = 25C )
MAX. 1.4 10 250 10 - 6 0.3 1.0 10 12 Unit V A pF A % V pF kHz s s
Input Output
Transfer characteristics
Fig. 1 Forward Current vs. Ambient Temperature
60
Fig. 2 Collector Power Dissipation vs. Ambient Temperature
200 Collector power dissipation P C ( mW )
50 Forward current I F ( mA )
150
40
30
100
20
50
10 0 - 25
0
25
50
75
a
100
125
0 - 25
0
25
50
75
100
125
Ambient temperature T
( C )
Ambient temperature T a ( C )
Fig. 3 Peak Forward Current vs. Duty Ratio
10 000 5 000 Peak forward current I FM ( mA ) 2 000 Pulse width <=100s T a = 25C
Fig. 4 Forward Current vs. Forward Voltage
500 200 100 Forward current I F ( mA ) 50 20 10 5 2 1 T a = 75C 50C 25C 0C - 25C
1 000 500 200 100 50 20 10 5
5 10
-3 2
5
10
-2 2
5
10
-1 2
5
1
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Duty ratio
Forward voltage V F ( V )
PC851
Fig. 5 Current Transfer Ratio vs. Forward Current
100 Current transfer ratio CTR ( % ) VCE = 5V T a = 25C Collector current I C ( mA ) 20 I F = 30mA
25m A A
Fig. 6 Collector Current vs. Collector-emitter Voltage
T a = 25C P C ( MAX. )
20m
15mA
50
10
10mA
5mA
0 1
2
5
10
20
50
100
0 0
Forward current I F ( mA )
5 Collector-emitter voltage V CE ( V )
10
Fig. 7 Relative Current Transfer Ratio vs. Ambient Temperature
150 I F = 5mA V CE = 5V
Fig. 8 Collector-emitter Saturation Voltage vs. Ambient Temperature
0.16 Collector-emitter saturation voltage V CE(sat) ( V ) 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0 - 25 0 25 50 75 Ambient temperature T a ( C ) 100 I F = 20mA I C = 1mA
Relative current transfer ratio ( % )
100
50
0 - 25
0
25
50
75
100
Ambient temperature T a ( C )
Fig. 9 Collector Dark Current vs. Ambient Temperature
10 10 Collector dark current I CEO ( A )
-5
Fig.10 Response Time vs. Load Resistance
500 V CE = 2V I C = 2mA T a = 25C tr tf td
V CE = 200V
-6
200 100 Response time ( s ) 50 20 10 5 2 1 0.5
10
-7
10
-8
10 10 10
-9
ts
- 10
- 11
- 25
0
25 50 75 Ambient temperature T a ( C )
100
0.2 0.1 0.01
0.1
1
10
50
Load resistance RL ( k )
PC851
Fig.11 Frequency Response Test Circuit for Response Time
0 Voltage gain A v ( dB ) VCC Input RD RL Output Input Output 10% 90% td ts tr tf 100 RL = 10k 1k V CE = 5V I C = 2mA T a = 25C
- 10
- 20
0.5 1
2
5
10
20
50 100 200
500
Frequency f ( kHz )
Fig.12 Collector-emitter Saturation Voltage vs. Forward Current
6 Collector-emitter saturation voltage V CE(sat) ( V ) T a = 25C 5 7mA
Test Circuit for Frepuency Response
VCC 4 5mA RD 3 3mA RL Output
2
1mA I C = 0.5mA
1
0
0
2
4
6
8
10
12
F
14 ( mA )
16
18
20
Forward current I
q Please refer to the chapter " Precautions for Use "

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