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or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application
by customer’s technical experts. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized
for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for
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Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. Other names and brands may be claimed as the property of others.
4-Pin DIP Phototransistor
Optocouplers
FOD785 Series
Description
The FOD785 series is a general−purpose family of phototransistor
optocoupler. It is offered in various CTR bins to meet the needs of
most applications. It consists of a gallium arsenide infrared emitting
diode driving a silicon phototransistor in a compact 4−pin dual in−line
package.
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Features
• Wide Selection in Current Transfer Ratio (CTR):
•
FOD785:
50 – 600%
FOD785A: 80 – 160%
FOD785B: 130 – 260%
FOD785C: 200 – 400%
FOD785D: 300 – 600%
Safety and Regulatory Approvals:
♦ UL1577, 5,000 VACRMS for 1 Minute
♦ DIN EN/IEC60747−5−5, 850 V Peak Working Insulation Voltage
PDIP4
CASE 646CS
PDIP4
CASE 646CT
PDIP4
CASE 709AK
MARKING DIAGRAM
Typical Applications
•
•
•
•
•
Digital Logic Inputs
Microprocessor Inputs
Power Supply Monitor
Twisted Pair Line Receiver
Telephone Line Receiver
1.
2.
3.
4.
5.
6.
ON
785
V
X
ZZ
Y
= Company Logo
= Device Number
= DIN EN/IEC60747−5−5 Option
= One−Digit Year Code
= Two−Digit Work Week
= Assembly Package Code
PIN CONNECTIONS
ORDERING INFORMATION
See detailed ordering and shipping information on page 6 of
this data sheet.
© Semiconductor Components Industries, LLC, 2021
May, 2021 − Rev. 0
1
Publication Order Number:
FOD785/D
FOD785 Series
Safety and Insulation Ratings
As per DIN EN/IEC 60747−5−5, this optocoupler is suitable for “safe electrical insulation” only within the safety limit data.
Compliance with the safety ratings shall be ensured by means of protective circuits.
Table 1. SAFETY AND INSULATION RATINGS
Parameter
Installation Classifications per DIN VDE
0110/1.89 Table 1, For Rated Mains Voltage
Characteristics
< 300 VRMS
I–IV
< 600 VRMS
I–III
Climatic Classification
55/110/21
Pollution Degree (DIN VDE 0110/1.89)
2
Comparative Tracking Index
175
Table 2.
Symbol
Value
Unit
Input−to−Output Test Voltage, Method A, VIORM x 1.6 = VPR,
Type and Sample Test with tm = 10 s, Partial Discharge < 5 pC
1360
Vpeak
Input−to−Output Test Voltage, Method B, VIORM x 1.875 = VPR,
100% Production Test with tm = 1 s, Partial Discharge < 5 pC
1594
Vpeak
VIORM
Maximum Working Insulation Voltage
850
Vpeak
VIOTM
Highest Allowable Over−Voltage
6000
Vpeak
External Creepage
≥7
mm
External Clearance
≥7
mm
External Clearance (for Option W, 0.4″ Lead Spacing)
≥ 10
mm
DTI
Distance Through Insulation (Insulation Thickness)
≥ 0.4
mm
TS
Case Temperature (Note 1)
175
°C
IS,INPUT
Input Current (Note 1)
130
mA
PS,OUTPUT
Output Power (Note 1)
VPR
RIO
Parameter
Insulation Resistance at TS, VIO = 500 V (Note 1)
265
mW
> 1011
W
Value
Unit
1. Safety limit values – maximum values allowed in the event of a failure.
Table 3. ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
TOTAL PACKAGE
TSTG
Storage Temperature
−55 to +125
°C
TOPR
Operating Temperature
−55 to +110
°C
Junction Temperature
−55 to +125
°C
260 for 10 seconds
°C
TJ
TSOL
Lead Solder Temperature
PTOT
Total Device Power Dissipation
200
mW
IF
Continuous Forward Current
50
mA
VR
Reverse Voltage
6
V
PD
Power Dissipation
100
mW
Derate Above 100°C
2.9
mW/°C
EMITTER
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2
FOD785 Series
Table 3. ABSOLUTE MAXIMUM RATINGS (continued)
Symbol
Parameter
Value
Unit
DETECTOR
VCEO
Collector−Emitter Voltage
80
V
VECO
Emitter−Collector Voltage
6
V
IC
Continuous Collector Current
50
mA
PC
Collector Power Dissipation
150
mW
Derate Above 100°C
5.8
mW/°C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
Electrical Characteristics
Table 4. ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
1.2
1.4
V
10
mA
EMITTER
VF
Forward Voltage
IF = 20 mA
IR
Reverse Current
VR = 4.0 V
Ct
Terminal Capacitance
V = 0, f = 1 kHz
30
pF
DETECTOR
Collector Dark Current
VCE = 20 V, IF = 0
BVCEO
Collector−Emitter Breakdown Voltage
IC = 0.1 mA, IF = 0
80
V
BVECO
Emitter−Collector Breakdown Voltage
IE = 0.01 mA, IF = 0
6
V
IF = 5 mA, VCE = 5 V
50
600
− FOD785A
80
160
− FOD785B
130
260
− FOD785C
200
400
300
600
ICEO
100
nA
DC TRANSFER CHARACTERISTICS
CTR
(Note 2)
Current Transfer Ratio − FOD785
− FOD785D
VCE(SAT)
Saturation Voltage
%
IF = 20 mA, IC = 1 mA
0.2
V
IC = 2 mA, VCE = 2 V, RL = 100 W
(Note 3)
18
ms
18
ms
AC TRANSFER CHARACTERISTICS
tr
Rise Time
tf
Fall Time
FCO
Cut−Off Frequency
80
kHz
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
2. Current Transfer Ratio (CTR) = IC / IF x 100%.
3. Refer to test circuit setup.
Table 5. ISOLATION CHARACTERISTICS (TA = 25°C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min
VISO
Input−Output Isolation Voltage (Note 4)
f = 60 Hz, t = 1 minutes, II−O ≤ 2 mA
5000
RISO
Isolation Resistance
CISO
Isolation Capacitance
VI−O = 500 VDC
VI−O = 0, f = 1 MHz
4. For this test, Pins 1 and 2 are common, and Pins 3 and 4 are common.
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3
Typ
Max
Unit
VACRMS
1x
1011
0.6
W
1.0
pf
FOD785 Series
TYPICAL CHARACTERISTICS
Figure 1. Forward Current vs. Forward Voltage
Figure 2. Current Transfer Ratio vs. Forward
Current
Figure 3. Relative Current Transfer Ratio vs.
Ambient Temperature
Figure 4. Collector−Emitter Saturation Voltage
vs. Forward Current
Figure 5. Collector Current vs.
Collector−Emitter Voltage
Figure 6. Collector−Emitter Saturation Voltage
vs. Ambient Temperature
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4
FOD785 Series
TYPICAL CHARACTERISTICS
Figure 7. Switching Time vs. Load Resistance
Figure 8. Switching Time vs. Load Resistance
Figure 9. Max Allowable Power Dissipation
(LED) vs. Ambient Temperature
Figure 10. Max Allowable Power Dissipation
(Detector) vs. Ambient Temperature
Test Circuit
Figure 11. Test Circuit
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5
FOD785 Series
Reflow Profile
Figure 12. Reflow Profile
Table 6.
Profile Feature
Pb−Free Assembly Profile
Temperature Min. (Tsmin)
150°C
Temperature Max. (Tsmax)
200°C
Time (tS) from (Tsmin to Tsmax)
60–120 seconds
Ramp−up Rate (tL to tP)
3°C/second max.
Liquidous Temperature (TL)
217°C
Time (tL) Maintained Above (TL)
60–150 seconds
Peak Body Package Temperature
260°C +0°C / –5°C
Time (tP) within 5°C of 260°C
30 seconds
Ramp−down Rate (TP to TL)
6°C / second max.
Time 25°C to Peak Temperature
8 minutes max.
Table 7. ORDERING INFORMATION
Part Number
Packing Method†
Package
FOD785
DIP 4−Pin
Tube (100 units per tube)
FOD785S
SMT 4−Pin (Lead Bend)
Tube (100 units per tube)
FOD785SD
SMT 4−Pin (Lead Bend)
Tape and Reel (1,500 units per reel)
FOD785300
DIP 4−Pin, DIN EN/IEC60747−5−5 option
Tube (100 units per tube)
FOD7853S
SMT 4−Pin (Lead Bend), DIN EN/IEC60747−5−5 option
Tube (100 units per tube)
FOD7853SD
SMT 4−Pin (Lead Bend), DIN EN/IEC60747−5−5 option
Tape and Reel (1,500 units per reel)
FOD785300W
DIP 4−Pin, 0.4″ Lead Spacing, DIN EN/IEC60747−5−5 option
Tube (100 units per tube)
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
NOTE: The product orderable part number system listed in this table also applies to the FOD785A, FOD785B, FOD785C, and FOD785D
products.
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6
FOD785 Series
PACKAGE DIMENSIONS
PDIP4 6.50mm (STANDARD LEAD FORM)
CASE 646CS
ISSUE O
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7
FOD785 Series
PACKAGE DIMENSIONS
PDIP4 6.50mm (M LEAD FORM)
CASE 646CT
ISSUE O
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8
FOD785 Series
PACKAGE DIMENSIONS
PDIP4 6.50mm (GULL WING)
CASE 709AK
ISSUE O
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer
application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Email Requests to: orderlit@onsemi.com
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